CONSTRUCT CENTRALIZED WASTE WATER TREATMENT SYSTEM WITH CAPACITY 2.000 M3/DAY AT NHON TRACH 3 INDUSTRIAL PARK - PHASE 2 (MODULE 2)

TIN NGHIA CORPORATION NHON TRACH 3 INDUSTRIAL PARK COMPANY LIMITED VIETNAM INDUSTRIAL POLLUTION MANAGEMENT PROJECT IN DONG NAI, NHUE-DAY RIVER BASINS ENVIRONMENTAL MANAGEMENT PLAN Of

TIN NGHIA CORPORATION NHON TRACH 3 INDUSTRIAL PARK COMPANY LIMITED

VIETNAM INDUSTRIAL POLLUTION MANAGEMENT PROJECT IN DONG NAI, NHUE-DAY RIVER BASINS

ENVIRONMENTAL MANAGEMENT PLAN

TIN NGHIA CORPORATION NHON TRACH 3 INDUSTRIAL PARK COMPANY LIMITED

VIETNAM INDUSTRIAL POLLUTION MANAGEMENT

PROJECT IN DONG NAI, NHUE-DAY RIVER BASINS

ENVIRONMENTAL MANAGEMENT PLAN

Of Sub-Project

"CONSTRUCTION OF CENTRALIZED WASTE WATER TREATMENT SYSTEM WITH CAPACITY

PARK - PHASE 2 (MODULE 2)"

DONG NAI, 05/2012

TABLE OF CONTENT

TABLE OF CONTENT 3

ABBREVIATE 6

LISTS OF TABLES 7

INTRODUCTION OF THE PROJECT 14

1.1 BACKGROUND 14

1.2 THE PROJECT INVESTOR 14

1.3 PROJECT SITE 14

1.4 EXISTING INFRASTRUCTURE SYSTEMS OF NHON TRACH INDUSTRIAL PARK NO 3 – PHASE II 15

1.4.1 List of Industries and Their Wastewater Treatment Capacity 15

1.4.2 Wastewater Collection and Discharge System of the Industrial Park 19

1.4.3 Wastewater Treatment System 20

1.4.4 Industrial Waste Management System 21

1.4.5 Transport System 22

1.4.6 Risk Management 23

1.5 THE DESCRIPTION OF CENTRALISED WASTEWATER TREATMENT PLANT 26

1.5.1 Treatment Technology, Influent and Effluent Characteristics 26

1.5.2 The Drainage and Discharge System 26

1.5.3 Sludge collection and treatment 38

1.5.4 Total investment and Progression pace of the Wastewater Treatment Plant 39

CHARACTERISTICS OF THE WASTEWATER RECEIVING BODY 42

2.1 WASTEWATER RECEIVING BODY 42

2.1.1 Discharge location 42

2.1.2 Local Environment Status 43

2.1.3 Socio-economic Conditions 46

2.1.4 Description Of All Discharge Sources With Same Final Discharge Receiving Body 52

2.1.5 Nearby Water Supply Intake (within 3km downstream) 54

2.2 CURRENT ENVIRONMENT STATUS 54

2.2.1 Atmosphere Status 55

2.2.2 Water Quality Status 56

2.2.3 Soil Status 61

2.2.4 Surrounding Deposit Status 61

2.2.5 Ecological Environment 63

ALTERNATIVE SOLUTION 66

3.1 STANDARDS OF ALTERNATIVE SOLUTION 66

3.2 DISCHARGE POINT LOCATION 66

3.3 WASTEWATER TREATMENT TECHNOLOGY 66

3.4 SLUDGE TREATMENT TECHNOLOGY 70

ASSESSMENT ON IMPACTS OF WASTEWATER DISCHARGE AT WATER INTAKE 72

4.1 IMPACTS ON WATER QUALITY (LOAD OF RECEIVING SOURCE AND IMPACT FORECAST USING WATER QUALITY MODELS) 72

4.1.1 Pollution Load 72

4.1.2 Assessment on the Impacts on Receiving Sources 72

4.2 IMPACTS ON ENVIRONMENT AND AQUATIC ECOSYSTEM 73

4.3 IMPACTS ON HYDROLOGICAL CONDITIONS 74

4.4 AIR QUALITY IMPACTS 74

4.5 ACCIDENTS RISKS 74

4.6 SOCIO-ECONOMIC IMPACTS ON WATER SUPPLY IN UPSTREAM AND DOWNSTREAM REGIONS 74

4.7 ACCUMULATED AND INTEGRATED IMPACTS 75

4.7.1 Mareng Pollution Loads Analysis 75

4.7.2 Thi Vai Pollution Loads Analysis 78

POLLUTION MITIGATION TOWARD NEARBY SURFACE WATER 81

5.1 Environmental Management Program 81

5.1.1 Construction Stage 81

5.1.2 Operation Stage 82

5.2 RISK MANAGEMENT 88

5.3 Public Consultation and Information Dissemination 94

5.3.1 Public Consultation in EMP Report Preparation 94

5.3.2 Information Dissemination 94

5.4 CAPACITY BUILDING 94

5.5 ENVIRONMENTAL MANAGEMENT ORGANIZATION AND RESPONSIBILITIES OF THE CENTRALIZED WASTEWATER TREATMENT SYSTEM AND THE INDUSTRIAL PARK 95

5.5.1 Environment Department 95

5.5.2 Wastewater Treatment Hierarchy 97

5.6 WATER QUALITY MONITORING AND AUDIT OF RECEIVING BODY 98 5.6.1 Monitoring of the Centralized Wastewater Treatment Facility 98

5.6.2 Monitoring of Pre- and Post-Treated Wastewater Quality 98

5.6.3 Monitoring of Water of Receiving Source at the Outlet 99

5.7 EMP PLANNED BUDGET AND SCHEDULE 99

5.7.1 EMP Budgets 99

5.7.2 EMP Schedule 100

PUBLIC CONSULTING 101

6.1 GOALS OF PUBLIC CONSULTING 101

6.1.1 Toward Evaluation Authority 101

6.1.2 Toward project owner 101

6.1.3 Toward consulting agencies 101

6.1.4 Toward the People’s Committee and Fatherland Front Committee 101

6.1.5 Towards the public from affected areas 101

6.2 PUBLIC CONSULTING ACTIVITIES 102

6.3 RESULTS OF PUBLIC CONSULTING 102

6.3.1 Results from consulting the People’s Committee 102

6.3.2 Results from consulting the Fatherland Front Committee 103

6.3.3 Results of public surveying 103

6.4 INFORMATION PUBLICATION 111

6.5 PROMISE FROM PROJECT OWNERS 111

APPENDIX Error! Bookmark not defined.

ABBREVIATIONS

BOD : Biochemical oxygen demand

CEPT : Common Effluent Treatment Plant

DONRE : Department of Natural Resources and Environments

EIA : Environmental impact Assessment

EMP : Environmental Management Plan

ENTEC : Environmental Technology Center

IZA : Industrial Zone Anthority

Ltd Co : Limitted Company

MONRE : Ministry of Natural Resources and Environments

QCVN : Vietnam National Regulation

TSS : Total Suspended Solid

VACNE :Vietnam Association for Conservation of Nature and Environment

LISTS OF TABLES

Table 1: Industries in Nhon Trach 3 Industrial Park, Phase 2 15

Table 2: Industries outside of Nhon Trach 3 Industrial Park, Phase 1 18

Table 3: main polluting parameters of Nhon Trach 3 – Module 2 IP 27

Table 4: Influent and the effluents ww characteristics of Module 1 versus the QCVN 40:2011/BTNMT 29

Table 5: Firms under Tin Nghia managements 33

Table 6: Other firms that is not under Tin Nghia managements 33

Table 7: Mixing Rates 38

Table 8: Projecting of the investment 40

Table 9: Monthly temperature from 2007 to 2011 – Dong nai province 44

Table 10: Monthly humidity from 2007 to 2011 – Dong nai province 45

Table 11: Average annual rainfall Dong Nai 45

Table 12: List of all wastewater discharge sources from Nhon Trach 3 IP 52

Table 13: The demographic of nearby residential areas to Thi Vai river 53

Table 14: Location of atmosphere quality testing is as below 55

Table 15: Sampling and analyzing methods 55

Table 16: Results of Nhon Trach 3 – Phase 2 air quality 55

Table 17: Tap Water quality 56

Table 18: Locations of Surface water Sample 57

Table 19: The sampling method for surface water 58

Table 20: Surface water quality 59

Table 21: Underground water quality of Nhon Trach 3 IP (Sampling date: 17/04/2006) 60

Table 22: Soil quality in Nhon Trach 3 IP – Phase 2 61

Table 23: Results of the sludge sampling 62

Table 24: The sampling results of the sediments underneath Thi Vai river 62

Table 26:The characteristics of the IP centralized wastewater treatment (Phase 2 - Module 1), September 2011 66

Table 27: The characteristics of the IP centralized wastewater treatment (Phase 2 -Module 1), fourth quarter, November 2011 67

Table 28: Pollutant Load in Wastewater of Nhon Trach 3 IP Treatment Plant 72

Table 29: Pollution load of Mareng 75

Table 30: The max pollution load that nearby surface water sources can receive 76

Table 31: The current pollution loads 76

Table 32: Pollution loads from discharge sources 77

Table 33: Mareng pollution loads receiving capacity after received the discharge 77

Table 34: Pollution load of Thi Vai 78

Table 34: The max pollution load that nearby surface water sources can receive 78

Table 35: The current pollution loads 79

Table 32: Pollution loads from Mareng into Thi Vai 79

Table 37: Mareng pollution loads receiving capacity after received the discharge 80

Table 39: EMP Budgets 100

Table 40: EMP schedule 100

Table 41: Public surveying 104

SUMMARY OF THE ENVIRONMENTAL MANAGEMENT PLAN

Nhon Trach 3 IP One member Affiliated Co., Ltd is authorised by Tin Nghia Corporation to manage the infrastructures of the IP; hence is also responsible for the implementation of the CETP (Module 2), capacity 2,000 m3/day in Nhon Trach 3 IP This EMP is constructed by the Environmental Technology Center (ENTEC), part of Vietnam Association for Conservation of Nature and Environment (VACNE) The

contents of the plan is as below

1 PROJECT CONTENTS

1.1 Description

 Aim: to satisfy the increasing in number of firms within the IP and the arisen demand of wastewater treatment through the development of Module 2 CETP ,capacity of 2,000 m3/day” (the total capacity of two modules is 4,000 m3

/day and night)

 Project Owners: Nhon Trach 3 IP One member Affiliated Co., Ltd

 Site Location: Road No 2, Nhon Trach Industrial Park No 1, Phase II, Nhon Trach District, Dong Nai Province

 The Module 1 centralised wastewater treatment system have original capacity of is 2,000 m3/day the system ahs been receiving and treating wastewater of operating industries in the industrial park Currently the average wastewater volume is

884m 3 /day; nd peaked at 1,169m 3 /day By November 2012, the total wastewater

volume of Nhon Trach 3 IP, Phase 2 will increase to around 3,000 m 3 /day To

properly collect and treat this wastewater, Tin Nghia has been developing the second module to expand the total capacity of the wastewater treatment facility of Nhon Trach

3 IP, Phase 2 to 4,000m 3 /day

1.2 CETP treatment technology

Wastewater from Nhon Trach 3 IP, phase 2 is treated by two steps as follows:

 1st Step (facilities own treatment): the wastewater from private companies will be treated preliminarily, to meet the influent standard of IP centralised treatment plant

 2nd Step (centralised treatment): Preliminarily treated wastewater is collected into the centralised treatment facility of the industrial park for further treatment ( and meet the QCVN 40:2011/BTNMT – National Technical Regulation on Industrial Wastewater, Column B, Kf=1.0, Kq=1.1) prior discharging into the environment

 Module 2 technology for Nhon Trach 3 IP CETP can be described as below:

Preliminary and Primary Treatment:

+ Removal of wastewater constituents (rags, sticks, floatables, grits…)

+ Chemical treatment (mixing and flocculation)

+ Removed floating oils and greases

Secondary treatment (remove biodegradable organics):

+ Aerobic treatment to removal biodegradable nutrients, BOD, COD

 The discharge schedule is 24 hours a day

 Discharge flow rate is 84 m3/hr (or up to 2000 m3/day)

1.4 CETP implementation schedules

 June/ July 2012: Finished legal works

 Aug-Dec 2012: Start the construction

 Jan 2013: Implement equipments, pipeline networks

 Feb 2013: Pilot Run

 Mar- Apr 2013: Technology and system transfering

2 CHARACTERISTICS OF WASTEWATER RECEIVING BODY BASIN 2.1 Discharge points

Discharge point: Lo Ren Culvert (near Lo ren Bridge) and at coordinates (VN2000):

 X: 1.184.745 m;

 Y: 413.438 m

2.2 Characteristics of wastewater receiving body

Thi Vai River is the wastewater receiving body for all of Nhon Trach 3 wastewater and currently is heavily polluted due to wastewaters from nearby sources River flowrate mixed with flood is peaked at 3,400 m3/s, with river with tide reverse flow peaked with tide at 2,300 m3/s River flowrate during wet season is around 350 – 400

m3/s and during dry season is around 200 m3/s The minimum recorded flowrate is 40 – 50 m3/s The highest river speed could reach 1.5 m/s Thi Vai River based on Dong nai Province planned landuse, is for aquaculture farming

2.3 Nearby discharge sources

Nearby discharges sources into Thi Vai River is as below:

 Industrial sources: Discharges from Hung Nghiep Formosa, Nhon Trach 2 and 3 IPs, with a flowrate of approximate 20,500 m3/day

 Agricultural sources: The total volume of wastewater from aquaculture activities discharged into Thi Vai river is estimated at 7,043,760 to 9,391,680 m3/farming season Most of these wastewater is discharged only after harvested (after around 3-4 months)

 Residental sources: Domestic wasteater from Long Tho Commune, Nhon Trach District and Hiep Phuoc District is 1,467 – 1,956 m3/day

2.4 Nearby water supply intake

Within 3 km downstream of Thi Vai (from Mareng discharge point), there’s no river water intake sites, even for industrial or aquaculture purposes

2.5 Current environmental status

 Air quality: The analysed sampling results from nearby air quality samples showed all parameters met QCVN 05:2009/BTNMT, QCVN 26:2010/BTNMT, and QCVN 06:2009/BTNM

 Surface Water quality: The analysed sampling results from nearby surface water quality samples comparing to QCVN 08:2008/BTNMT, column B1 showed parameters like COD, BOD and TSS over the standards

 Soil quality: The analysed sampling results from soil samples showed no heavy metal pollution

3 ALTERNATIVE SOLUTION

3.1 Discharge point location

As the Module 2 used the same discharge point with the Module1, hence there’s no alternative solution for the discharge point location

3.2 Wasteawter treatment technology

As the Module 2 have to integrate into Module 1, hence there’s no alternative solution for the already chosen technology in Module 1

3.3 Sludge treatment

As the sludge treatment of Module 1 still can provide the extra capacity, hence the Moduel 2 still use the same method as Module 1

4 DISCHARGE IMPACT ASSESSMENT

4.1 On water quality

After the Module 2 start operating, a flow of 2,000 m3/ day will contribute into Mareng Canal flow, bring with it an equivalence of 31.6 kg TSS, 14 kg BOD5, 104 kg COD, 0.76 kg ammonia and 0.36 kg Total iron

4.5 Associated risks and accidents

Due to the low discharge rate 2,000 m3/day or 23.14 l/s, the discharge won’t affect the travel of canoes on the canal and rvier

4.6 Socio-economical impacts

There’s no negative feedbacks from the nearby residential areas (around Mareng and Thi Vai) on whether their socio-economical situations are affected by the project

4.7 Accumulated and integrated impacts

For Ma Reng Canal, after received the treated wastewater from the IP will still be able

to sustain the loads of parameters BOD, SS, As, Pb, Cd and Hg Only COD already over the river maximum pollution loads; due to the current pollution load of Mareng

is already higher than the Canal max pollution load In that way, even when the pollution loads from the CETP contribute unsinificant amount, the river still can’t receive more loads

Similarly for Thi Vai River, after received the treated wastewater from the IP will still

be able to sustain the loads of parameters BOD, COD, As, Pb, Cd and Hg Only COD already over the river maximum pollution loads; due to the current pollution load of Mareng is already higher than the Canal max pollution load So even when the

pollution loads from the CETP contribute unsinificant amount, the river still can’t receive more loads

5 POLLUTION MITIGATION TOWARD NEARBY SURFACE WATER

5.1 Environmental Management Program

Construction stages

 Water pollution mitigation measures

 Air pollution mitigation measures

 Mitigation measures for smpacts from solid wastes

Operation stages

 Water pollution mitigation measures

 Air pollution mitigation measures

 Negative impacts mitigation for solid wastes

 Negative impacts mitigation for sludges

5.2 Risks managements

Constructs stages

Measures to prevent and mitigate the impacts of these risks:

 Risk of fires and explosions

 Traffic Accidents

 Risks associated with labour and health safety

Operation stages

Measures to prevent and mitigate the impacts of these risks:

 Risk of fires and explosions

 Risks associated with labour and health safety

 Chemical leakage

 Thunder/ lightning

 Impactsassociated when the plant stop operating

5.3 Public consulting and Information publication

During the construct of this EMP, the project owner have consult the local government (People Committee, Fatherland Front Committee) and the residents living in affected areas

5.4 Capacity building

The project owners will carry own measuress to strengthen the capacity to react against environmental and CETPworkers health risks

5.5 Project owner organisation and responsibilties

The issues related to environmental management will be implemented by the CETP Environmental Department as regulated plan

5.6 Environmental quality Monitoring

The project owners will be responsible for the monitoring of nearby surce water sources, along with the periodic sampling of Nhon Trach 3 The results will be presented to authorised body of local government as required

5.7 Costs and schedules of EMP

6 PUBLIC CONSULTING

The project owners carried out consultations with the following subject groups:

- People Committee, Fatherland Front Committee of Long Tho Commune where generally these two local governmental bodies have provided their opponents over the proposal and the measures mentioned in this EMP

 The residents living near the site and under effects of the project, where 17/24 agreed with the projects, while most of others does not give comments on it The residents also mentions the issues of flooding during rains and the stagnation of effluent in the canal during the dry season

Commitment From Tin Nghia

 The project owners commit to meet Vietnam regulations during the construction and operations

 The project commit to apply all of risks control measures as presented in the plan, while promote internal capacity building and environmental awareness, to ensure best environmental management plans for the project will be carried out The project owners will under full responsibilities if violating Vietnam regulations or International Convention

INTRODUCTION OF THE PROJECT 1.1 BACKGROUND

“Socio-economic development in line with environmental protection” is a proper

sustainable development policy which was selected by all of the members under United Nations It therefore considered seriously by the Vietnamese Government to address and minimize any negative impacts in the country quest of industrialization and modernization

In compliance with the existing regulations over the environmental qualities within and surrounding Nhon Trach 3 Industrial Park, Tin Nghia Corporation have invested

in the implementation of a centralised wastewater treatment system (Module 1) in Nhon Trach 3 Industrial Park- Phase 2, capacity of 2,000 m3/day and night This Module 1 central wastewater treatment system was officially put into operation since November 2007, meeting wastewater treatment requirements and demands from Nhon Trach 3 Industrial Park, and Vietnam environmental regulations

However, under increasing number of facilities within the industrial park, the wastewater discharge demand has been increasing rapidly That’s why the project entitled “Development of the Central Wastewater Treatment System, Phase 2, capacity

of 2,000 m3/day and night (the total capacity of two phases is 4,000 m3/day and night) has been proposed to meet the wastewater treatment demand in the industrial park

1.2 THE PROJECT INVESTOR

 Nhon Trach 3 IP Investor Group: Tin Nghia Corporation

 Representative: Mr Quach Van Duc - Position: General Director

 Address: No 96, Ha Huy Giap Street, Quyet Thang Ward, Bien Hoa City, Dong Nai Province

 Telephone No.:061.3822486 Fax No.: 061.3823747

 The assigned unit to manage the services of infrastructures of Nhon Trach 3:

Nhon Trach 3 IP One member Affiliated Co., Ltd

 Representative: Mr Nguyen thanh Binh - Position: Director

 Address: 25B Road, Hiep Phuoc Commune, Nhon Trach District, Dong Nai Province

 Telephone No.:061.3822486 Fax No.: 061.3823747

1.3 PROJECT SITE

Site Location: Road No 2, Nhon Trach Industrial Park No 1, Phase II, Nhon Trach District, Dong Nai Province

1.4 EXISTING INFRASTRUCTURE SYSTEMS OF NHON TRACH INDUSTRIAL PARK NO 3 – PHASE II

Nhon Trach 3 IP, Phase II covered a total area of 360.5 ha The IP’s EIA report was approved by the Ministry of Natural Resources and Environment(MONRE) at Decision No 1696/QD-BTNMT dated November 15, 2006 The IP has been attracting various industries including garment and textile, footwear and leather, machine manufacturing, food processing, medicine and cosmetics, material technologies, interior decoration, wooden product processing and services such as banking, telecommunication, public cleaning service, warehouse, workshop rental among others

 Area: 360.5 ha with the construction area of 262.5 ha (65.7% of total area)

 29 investment facilities’ licenses were granted so far in Nhon Trach 3 IP

 The occupied area: 126.95 ha; sharing 48%

 The unoccupied area: 136 ha; sharing 52%

 Tree growing area: 61.29 ha; sharing 17%

1.4.1 List of Industries and Their Wastewater Treatment Capacity

Below table summarizes industries in Nhon Trach 3 IP, Phase 2, with their size and busines (as of April 2012)

Table 1: Industries in Nhon Trach 3 Industrial Park, Phase 2

Operating Industries

01 Viet Long Packing

Co Ltd 50,000 Paper packing manufacturing

Have pre- treatment plant

02 SPC Tianhua Co., Ltd

Manufacturing of chemicals for wastewater treatment industries

04 Shun Yin Ceramics

Materials Co., Ltd 20,000 Ceramics manufacturing

Have pre- treatment

08 CSB Battery Co., Ltd 100,000 Dry battery manufacturing

Have pre- treatment plant

09 Velco Co., Ltd 30,000

Machine and equipment manufacturing for steel industries

treatment

10 Kirby Southeast Asia

Co., Ltd 65,862 Steel structure processing

15 An Lac Nhon Trach

Co., Ltd 24,000 Toilet paper processing

treatment

16 Plus Vietnam Industry

Co., Ltd 30,000 Stationery manufacturing

Have pre- treatment plant

18 Soltec Vietnam Co.,

Manufacturing of industrial equipment, environmental treatment equipment, industrial steel pipe and construction scaffolding

28 D.N Tan Dai Kim

Joint Stock Co 43,906

Manufacturing of plastic door with steel frame

-

29 Nhan Duc Vietnam

Co., Ltd 70,000 Plastic frame manufacturing

-

Furthermore, based on Decision 2376/QĐ-UBND dated 24/7/2008 of Dong Nai People’s Committee, the project treatment plant will also collect the wastewater from facilities from Formosa (of Nhon Trach 3 IP- Phase 1) and 51.73 ha of Tin Nghia service center At this moment the treatment plant has collected and treated ww from the 16 ha of Tin Nghia service center and 11 facilities (as below)

Table 2: Industries outside of Nhon Trach 3 Industrial Park, Phase 1

(m 2 )

I OPERATING SERVICES AND THE SERVICE CENTER 16 HA

4 TM Thai Nong Co., Ltd Pesticides pouring and

distributing

5000

7 Song Hui Co., Ltd Under construction (office) 1,500

II UNDER CONSTTRUCTION

10 Thanh Thuy V&T Co., Ltd Paper recycling 20,000

III TEMPORARY CLOSED

Industrial wastewater of industries in Nhon Trach 3 IP, Phase 2 will be treated and

meet the wastewater treatment contract prior to discharging (attached Table of

Allowable Limits of Concentration of Parameters prior discharging to the wastewater treatment system of Nhon Trach III in the appendix)

 The wastewater discharge system of 20 operating industries has been connected to the centralised wastewater treatment system as signed under wastewater treatment contract with the Infrastructure Management Unit

 Among them, 7 already have their own treatment systems for pre-treatment before being discharged into the centralized wastewater treatment system, they are:

o Viet Long Packing Co

o Ampharco Cosmetics Joint Stock Co Ltd,

o Bueno Technique Co Ltd.,

o CSB Battery Co., Ltd

o And Sammi Co., Ltd

o Plus Vietnam Industry Co., Ltd

o Y.S.P Vietnam Co., Ltd

 The Module 1 centralised wastewater treatment system have original capacity of is 2,000 m3/day the system ahs been receiving and treating wastewater of operating

industries in the industrial park Currently the average wastewater volume is

884m 3 /day; nd peaked at 1,169m 3 /day

 Wastewater is treated to meet Vietnam National Regulation QCVN 40:2011/BTNMT; column B, Kq=1.1; Kf=0.9 prior discharging through Lo Ren Discharge Point, and ultimately into Thi Vai River

 The Phase 2 addition of the treatment facility was examined and certified by Dong Nai Department of Natural Resources and Environment at Official Document No 652/TNMT-CCBVMT dated March 18, 2010 and by Dong Nai People’s Committee under license No 3571/GP-UBND in December 1, 2009 (see attached

documents in the appendix)

 The company also has installed an automatic monitoring system to monitor the effluent quality (pH, DO, TSS, COD, temperature)

1.4.2 Wastewater Collection and Discharge System of the Industrial Park

1.4.2.1 Wastewater Collection System

 The sewage system was entirely developed by Tin Nghia Corporation

 The slope is inclined toward south west: with the elevation varies from 1 to 3.5

m Wastewater is classified into two storing basins N1 and N2 In each basin, the wastewater is ran through reinforce concrete box culvert D300 – D400 – D600 and through the primary culvert system D800 – D1000 – D1200 to the centralised wastewater facility via D1500 culvert line The wastewater discharge culverts are RC culvert, with manholes at the interval of 40-50 m along the culvert long The sewage system covers total length of 15,704 m, comprising of D300 = 10,038 m, D400 = 1,777 m, D600 = 1,489 m, D800 =

982 m, D1000 = 1,188 m, D1200 = 210 m, D1500 = 56 m

 The treated wastewater is discharged to the environment via open ditch concrete culvert canal (B4000, 235 m in length) and closed box culvert (B3000, 524.3 m in length) before being discharged into Lo Ren canal, and ultimately ends up in Thi Vai River

1.4.2.2 Drainage System

Tin Nghia Corporation also developed the drainage system The drainage system is the

RC culvert, covering 30,211.4 m long, comprising of D600 culvert = 2,042 m, D800 = 6,905.6 m, D1000 = 7,020.2 m, D1200 = 485.6 m, D1500 = 11,254.2 m, open ditch B2000 = 997.5 m, B4000 = 982 m, and closed box culvert B3000 = 524.3 m

 People’s Committee of Nhon Trach District has only invested in the development

of the drainage system along Road 25C Comapnies along Road 25C (in Nhon Trach 3 IP, Phase I and Phase II) will have to continue the development and connect to the drainage system

 When the local goverment develops the drainage system along Road 319B, the private sector will have to continue implementing a drainage system to connect from Youngtex Vina to the current one

 The stormwater in Nhon Trach 3 IP, Phase II is collected into the above concrete culverts, is run along the internal roads before being discharged to open ditch (the same one hosted the treated wastewater from the central wastewater treatment system) then being discharged into Mareng canal, and ultimately ends up in Thi Vai River

1.4.3 Wastewater Treatment System

Wastewater from Nhon Trach 3 IP, phase 2 is treated by two steps as follows:

 1st Step (facilities own treatment): the wastewater from private companies will be treated preliminarily, to meet the influent standard of IP centralised treatment plant

 2nd Step (centralised treatment): Preliminarily treated wastewater is collected into the centralised treatment facility of the industrial park for further treatment ( and meet the QCVN 40:2011/BTNMT – National Technical Regulation on Industrial Wastewater, Column B, Kf=1.0, Kq=1.1) prior discharging into the environment

1.4.3.1 The existing firms with prelimary treatment system

Facilities in Nhon Trach 3 IP (Phase 2) which already have own prelimary treatment system are:

(m3/day)

As seen in above table, the total ww discharge from the 6 firms are 319 m3/day

1.4.3.2 The under construction firms with preliminary treatment

There is only one firms which currently under construction and already have

preliminary treatment plant being set under plan, that is the Y.S.P Vietnam Co., Ltd

with discharge capacity of 6 m3/day

1.4.3.3 The module 1 ww treatment system

Module 1 of Nhon Trach 3 (Phase 2) CETP have the capacity of 2,000 m3/day, and already under operation since 11/2007

1.4.3.4 The module 2 ww treatment system

Some facilities are currently under construction at the IP, and already sent the notification on the expected operation time in 2012 and the estimated discharge vlomue Or more specifically:

 Rohm & Haas Vietnam Co., Ltd: April, 2010 The estimated wastewater volume is

By November 2012, the total wastewater volume of Nhon Trach 3 IP, Phase 2 will

increase to around 3,000 m 3 /day and night To properly collect and treat this

wastewater volume to the existing requirement (Decision No 1696/QD-BTNMT dated

November 15, 2006 of MONRE on approving EIA report of Nhon Trach 3 IP, Phase 2), Tin Nghia has been developing the second module to expand the total capacity of

the wastewater treatment facility of Nhon Trach 3 IP, Phase 2 to 4,000m 3 /day and night

1.4.4 Solid Waste Management

Based on the collected information, 17 of total 20 companies there have already been granted “hazardous solid waste registration books” The last 3 companies are preparing paperwork to get the hazardous waste owner registration book

1.4.4.1 Solid Waste Management of Nhon Trach 3 IP One member Affiliated Co., Ltd

The IP got the hazardous waste registration book No 587/SĐK-TNMT dated November 5, 2010, with hazardous solid waste management code No 75001375.T

 Domestic solid waste: The IP contracted Ha Long Bay Co., Ltd to collect the domestic solid waste properly (attached with the report is the solid waste collection contract)

 Hazardous Solid Waste: The IP contracted Tai Tien Co Ltd to collect, transport and treat hazardous solid waste appropriately

1.4.4.2 Solid Waste Management at Industries in Nhon Trach 3 IP, Phase 2

Nhon Trach 3 IP One-member Affiliated Co Ltd constructed the solid waste transit sites and signed the solid waste collection and transport with all companies within the

IP In addition, the company has also negotiated with hazardous solid waste disposal

agencies (as mentioned above) to deal with them appropriately (follwoing Circular

No 12/2011/TT-BTNMT dated April 14, 2011 of MONRE on hazardous solid waste management)

Nhon Trach 3 IP One-member Affiliated Co Ltd Also requested enterprises sorting out wastes at the discharge sources and store appropriately before delivering to the

competent agency (the provisions of the land leasing contract)

The solid waste volume is specified as follows:

 The domestic solid waste is estimated at 17.423 tons per month, which is mainly

collected by Nhon Trach 3 IP One-member Affiliated Co., Hiep Hoa Cooperative, Nhon Long Trade and Service Cooperative among others

 Non-hazardous solid waste is estimated at 58.422 tons per month, which is mainly

collected by Bay Ha Long Co., Ltd, Kim Xuan Private enterprise, Tuoi Sang Environment Co., Ltd and private recycling units

 The hazardous solid waste volume is 98.252 ton per month which is collected by

Green Viet Environmental Production and Trade Co., Ltd, Viet – Uc Environment Co., Tai Tien Co., Ltd., among others

1.4.5 Transport System

The internal road system of the industrial park run horizontal and diagonal along three main roads of the city The ROW of the industrial park roads is as follows:

1 Main Industrial Park Road: Road 4D is the primary road in the industrial park (D is

the code of north – south roads)

 ROW width: 47.00 m, double road

 Carriage lane width: (3 lanes x 3.75 m/lane) x 2 + 1.5m = 24.00 m

 Median: 3.00m

 Sidewalk and technical corridor on each side: 10.00m

 Step back on each side: 15.00m

 Cross-section code No 7 – 7

2 Secondary Road: comprising of Roads 1N and 6D (N: east – west roads)

 ROW width: 36.00 m

 Carriage lane width: 20.00 m (4 lanes x 3.75 m/lane) = 15.00 m

 Parking lane: 5.00 m

 Sidewalk and technical corridor on each side: 8.00m

 Setback on each side: 15.00 m

 Road cross-section No 4 – 4

3 Tertiary Roads: Roads No 3D, 5D, 7N and service road along Provincial Roads

25C and 319B

 Roads No 3D and 5D:

+ ROW width: 31.00 m

+ Carriage lane width: (4 lanes x 3.75 m/lane) = 15.00m

+ Sidewalk and technical corridor on each side: 8.00m

+ Carriage lane width: (2 lanes x 3.75 m/lane) = 7.50m

+ Sidewalk on each side: 6.00m (Cross-section 6 – 6)

 Service roads along PR25.C and PR319B:

+ ROW width: 18.50 m

+ Carriage lane width: (2 lanes x 3.75 m/lane) = 7.50m

+ Sidewalk on industrial land lots: 8.00m; sidewalk on PR25C and PR319B: 3.00m (Cross-section 1 – 1 and 2 – 2)

The road system of the industrial park covers 12,416.94 m (rounding to 12.42 km) The primary roads, secondary and tertiary roads have been completely developed Road area covers 36.64 ha and 1.12 ha depot, increasing the total transport land to 37.72ha, sharing 10.75% of the industrial park area If one half of the primary road system of the city is included the total road area of the industrial park increases to 37.74 ha + 17.29 ha = 55.03 ha (rounding to 55ha, sharing 15.67 % (see Table of Road Inventory and Main Specifications)

1.4.6 Risk Management

The investor will take proper measures to prevent and response to environmental incidents and risks as follows

1.4.6.1 Fire and explosion

(1) Fire and Explosion Prevention

 Workers who work directly at the construction site will be trained on fire and explosion methods

 Inflammable solvents and fuel shall be stored at isolated warehouses, far from ignition sources

 Provide fire and explosion prevention and fighting equipments at fuel warehouses;

 Provide proper fire and explosion prevention and fighting equipments in compliance with existing regulations;

(2) Counter-measures

Follow PCCC approved methods by the PCCC

1.4.6.2 Chemical and Fuel Spill

 The authorized person in each zone shall review the situation and take immediate measure If the incident is not related to fuel/chemical spill the authorized person shall direct the site clearance properly If it is fuel and chemical spill that affects to environment or public health prompt measure shall be taken to cope with the situation and separate the site until the incident is addressed

 Persons-in-charge shall minimize environmental pollution and impacts on people’s health

 In case insufficient resources to address the incident, it should be reported to competent agency to get the support

 When the incident is solved the authorized person shall report to EMR on solving situation

 If the incident could not be solved completely and could cause pollution or people’s health, the team leader shall report to EMR and competent agencies for necessary intervention

1.4.6.3 Power Shortage

(1) Preparedness

 The company shall prepare list of electric generator leasing companies (name, address, contact number, email, etc.) Selection of a generator leasing company shall

be conducted properly to select the most suitable agency

 When receiving the power cut notice, the office shall confirm to the centralized wastewater treatment facility The facility manager is responsible to hire the generator properly

(2) Response

 In case of sudden power cut the operator shall confirm to the facility management and contact to the generator leasing company immediately to hire the generator and operate within 6 hours

 The generator shall be operated to supply power for the treatment system The generator operation shall be in compliance with the guideline of the generator leasing company

1.4.6.4 Failure of the Wastewater System

The wastewater system failures are comprised of pipe broken, flooding rainwater, etc

(1) Preparedness

 Proper equipment and tools shall be prepared to close the pipe broken and repair

 In every six months, the company shall formulate the emergency response rehearsal; record the rehearsal minutes of meeting properly

(2) Response

In case of incident confirmation from the operation staff, cleaning team or other sources, the technical department/the centralized wastewater treatment facility shall response to the incident immediately In case of insufficient resources, it shall be reported to the manager immediately

1.4.6.5 Failure of the Treatment System

(1) Preparedness

 The treatment system manager shall assign staff to conduct the maintenance as scheduled

 The operator shall prepare proper tools for repairing properly

 The treatment system leader shall prepare the list of maintenance or repairing agencies adequately

(2) Response

 The operator or anyone who detects the failure (equipment damage, components of the treatment system, among others) shall report immediately to the repairing and maintenance manager In the guarantee period, the manager shall contact to the guarantee agency properly

 If the failure is out of the corporation control the manager shall conduct with the repairing and maintenance agencies

 The repairing shall be conducted within 6 hours since the failure occurs

Remark:

 In the rehearsal cases, the team leader shall evaluate the rehearsal results and requirements on activities to have experiences for the afterward turns

After every incident solving turn, the team shall address the issue properly, preventing impacts on environment

Currently, the project owner have finished the construction of finishing ponds, with size 34m x 107.3m x 2.2m and holding a volume of 8,026 m3 This will also temporarily storing the ww if the CETP stop working

1.5 THE DESCRIPTION OF CENTRALISED WASTEWATER TREATMENT PLANT

1.5.1 Treatment Technology, Influent and Effluent Characteristics

Based on a) the actual condition and requirement of Nhon Trach 3 IP, b) the influent characteristics, and c) the Module 1 technology for the wastewater treatment plant; Module 2 technology for Nhon Trach 3 IP CETP can be described as below:

1.5.1.1 The Step-By Step Processes of the Treatment Plant

 Preliminary and Primary Treatment:

+ Removal of wastewater constituents (rags, sticks, floatables, grits…)

+ Chemical treatment (mixing and flocculation)

+ Removed floating oils and greases

 Secondary treatment (remove biodegradable organics):

+ Aerobic treatment to removal biodegradable nutrients, BOD, COD

 Tertiary treatment:

+ Advanced treatment by remove residual suspended solid and dissolved materials + Disinfection

 Sludge treatment:

+ Dewater and compact the dried sludge

The more detail processes of the plant is presented in Section 1.5.2.2

1.5.1.2 Actual Influent and the Required Effluent Characteristics

 The Influent characteristics of the treatment plant are presented in Table 1.5.2.1

 The effluent characteristics have to meet the national regulation QCVN 40: 2011/BTNMT, Column B, Kq=1,1; Kf=1,0

1.5.2 The Drainage and Discharge System

1.5.2.1 Wastewater characteristics

(1) Wastewater profiles

Wastewaters toward the centralized CETP of Nhon Trach 3 IP is industrial and domestic wastewater, which being generated by the operating facilities and workers onsite

(2) Influent profiles

The highly polluted parameters of the influents depend on the wastewater profiles of the industries within the IP They can be presented in table below:

Table 3: main polluting parameters of Nhon Trach 3 – Module 2 IP

parameters

OPERATING INDUSTRIES

01 Viet Long Packing Co

BOD5, COD, TSS, colour, sulfur, temperature

02 SPC Tianhua Co., Ltd

(Vietnam)

Manufacturing of chemicals for wastewater treatment industries

BOD5, COD, heavy metals, specific chemicals

04 Shun Yin Ceramics

Materials Co., Ltd Ceramics manufacturing

Heavy metal, turbidity, temperature, TSS

05 Le Phan Construction

Co., Ltd Fresh concrete manufacturing

TSS, heavy metal, turbidity

06 Ampharco Cosmetics

Joint Stock Co

Pharmaceutical product manufacturing

Heavy metal, inorganic grease, TSS

10 Kirby Southeast Asia

Co., Ltd Steel structure processing

Heavy metal, inorganic grease, TSS

colour, sulfur,

14 Sammi Co., Ltd Steeless steel wire and net

manufacturing

TSS, heavy metal, turbidity

15 An Lac Nhon Trach

Co., Ltd Toilet paper processing

Heavy metal, turbidity, temperature, TSS

16 Plust Vietnam

Industry Co., Ltd Stationery manufacturing

TSS, heavy metal, turbidity

Heavy metal, inorganic greases, TSS

19 Kyowa Vietnam Co.,

Ltd

Manufacturing of steel and stainless steel components, industrial pipe, industrial valve and cranes

COD, heavy metal, TSS

20 Rohm and Haas Co.,

INDUSTRIES UNDER CONSTRUCTION

23 MKTP Co., Ltd

Manufacturing of metal components, mechanical processing, industrial machine installing, automobile and motorcycle maintenance, etc

TSS, heavy metal, turbidity

26 YKK Vietnam Co.,

COD, BOD5, TSS, TN,

TP

27 TANAKA Scale

Vietnam Co., Ltd Industrial scales

Heavy metal, inorganic greases, TSS

UNDER-INVESTMENT PROCESSING PROJECTS

28 D.N Tan Dai Kim

Joint Stock Co

Pre-cast concrete components manufacturing

Heavy metal, inorganic greases, TSS

29 Nhan Duc Vietnam

Co., Ltd

Manufacturing of metal components, mechanical processing, industrial machine installing, automobile and motorcycle maintenance, etc

Heavy metal, inorganic greases, TSS

The influent for Module 2 will have similar characteristics as Module 1 ww Based on the design, the influent characteristics of the CETP is:

+ Other parameters based on Regulation C of Vietnam

(3) Effluent required characteristics

The effluent characteristics have to meet the national regulation QCVN 40: 2011/BTNMT, Column B, Kq=1.1; Kf=1.0

(4) Assess the wastewater characteristics with available standard

As the technology from Module 2 of the IP centralized treatment plant is similar is to Module 1, therefore the reports used the influent and the effluents ww characteristics

of Module 1 and place it against the “National regulation on industrial ww discharge” QCVN 40:2011/BTNMT (column B) as below

Table 4: Influent and the effluents ww characteristics of Module 1 versus the QCVN 40:2011/BTNMT

No Parameters Units Influents Effluents Efficiency

(%)

QCVN (***)

1 pH - 7.2 7.2 - 5.5 - 9

2 Colour

(pH=7) Pt-Co 31 24 22.6 165

8 Pb mg/l Undetected

(LOD=0.01)

Undetected (LOD=0.01) - 0.11

9 Cd mg/l Undetected

(LOD=0.005)

Undetected (LOD=0.005) - 0.55

10 Cr6+ mg/l Undetected

(LOD=0.043)

Undetected (LOD=0.043) - 0.11

11 Cr3+ mg/l Undetected

(LOD=0.025)

Undetected (LOD=0.025) - 1.1

12 Zn mg/l Undetected

(LOD=0.1)

Undetected (LOD=0.1) - 2.2

13 Ni mg/l Undetected

(LOD=0.06)

Undetected (LOD=0.06) - 5.5

14 Fe mg/l 0,52 0,27 48.1 3,3

15 CN- mg/l Undetected

(LOD=0.005)

Undetected (LOD=0.005) - 0,11

16 Phenol mg/l Undetected

(LOD=0.01)

Undetected (LOD=0.01) - 0,55

17 Cl2 mg/l Undetected

(LOD=0.1)

Undetected (LOD=0.1) - 2.2

(*): parameters which has not yet acknowledged by Vilas

(**): was sampled by HCM ENTEC

(***): QCVN 40:2011/BTNMT Column B Kq=1.1;Kf=1.0

LOD: Limit of Detection

As seen, many parameters of module 1 does not meet the regulation QCVN 40:2011/BTNMT column B with Kq=1.1;Kf=1.0

1.5.2.2 Specifications of discharge system

(2) Treatment Technology Description

The treatment technology is described in

Figure 1: CETP diagram

Technology description:

 The treatment capacity of the IP CETP (from internal firms, through the drainage system) is 2,000 m3/day The first stage of the preliminary treatment process is the fine screening and grit removal to remove wastewater constituents with diameter larger

SORT AND TREAT

than 1.5 mm Next is the wastewater equalising tank with mixing to equalising wastewater characteristics, avoiding sedimentation and anaerobic process The tank also being injected with chemical to stabilise pH level

 If the wastewater have high concentration of heavy metal or colour than designed characteristics, the wastewater will be treated with chemical through flocculation and flotation process in primary clarifier The clarifier will separate the residue/sludge from influent, before it’s running through grease trap

 The wastewater with low concentration of heavy metal or colour than designed characteristics, will still be ran through primary clarifier, however the flocculation and flotation process won’t happen

 At the grease trap, grease will be separated from wastewater and stored in different container The main body of wastewater will then be treated in the aerobic tank

 The wastewater after being treated with the aerobic process, will be run through the secondary clarifier Some of the sludge from the secondary clarifier will be fed back to the aerobic tank to provide the foods and maintain the level of microorganism inside the aerobic tank The rest of the sludge will be pumped out for dewatering and further treatment The treated wastewater will then be pumped into disinfection tanks for disinfections and monitoring

 The stabilising pond acted as buffer to further treat the water before it’s released into the environment

 On sludge treatment: sludge from primary and secondary clarifiers will be pumped out for solidified and dewatered (with mixing) Solidified and dewatered sludge are mixed with polymer before finally being compressed This mud, and the greases from the container will be treated as hazardous wastes Water from sludge in these processes will be pumped back and mixed with the influent

(3) Industries’ own treatment system

At this moment, the IP has 9 firms with their own ww treatment system, before being discharged and treated again in the centralised treatment plant The more details can be seen in table 5 and 6 below

Table 5: Firms under Tin Nghia managements

Ww system treatment rate (m 3 /day)

2 Sinpoong Vina Co Limited Zipper Manufacturing 50

Source: Nhon Trach 3 IP One member Affiliated Co., Ltd

Table 6: Other firms that is not under Tin Nghia managements

No Name Business

Ww system treatment rate (m 3 /day)

steel spare parts

2

Source: Nhon Trach 3 IP One member Affiliated Co., Ltd

1.5.2.3 Discharge System

(1) Technical aspects of discharge system

1) Industrial wastewater discharge

At the centralized wastewater treatment plant, after treated wastewater is discharged through Lo Ren canal (the regional discharge channel) through a network of open ditches B4000, and closed pipes B3000, with a total length of 759.3 m (B4000= 235

m, B3000 = 524.3 m)

2) Storm water drainage discharge

 Storm water is collected by the drainage system running along the internal roads (as mentioned previously), then is gathered and discharged through the drain pipe along D6 road Finally the storm water is discharged through Lo Ren canal along with the treated wastewater from the treatment plant

 Currently all of the firms within the IP have connected their wastewater drainage system toward the IP’s centralized wastewater treatment plant; in oppose to self treatment and discharged into the stormwater pipeline

(3) Discharge Schedule

The wastewater treatment plants used the combination of chemical and biological treatment methods (BNR), so wastewater treatment system is operated 24 hours a day

(4) Discharge flow rate

 Standard discharge flow rate currently averaged 6.3 m3/hr (or 152 m3/day)

 Maximum discharge flow rate is 84 m3/hr (or up to 2000 m3/day)

1.5.2.4 Operating costs of the CETP Module 1

The operating cost of the CETP Module 1 to treat 1m3 can be calculated based on daily costs divide to the plant treatment capacity

Table 7: Daily operating cost

Figure 2: Wastewater pump

Figure 3: treatment tanks

Figure 4: Finishing pond

Figure 5: Automatic effluent quality monitor

Figure 6: Sludge treatment

Figure 7: Labs in CETP environmental department

1.5.3 Sludge collection and treatment

1.5.3.1 Collection and transport processes

Hazardous sludge from the CETP of Nhon Trach 3 IP – Module 2 will be contracted with Tai Tien Co Limited to collect, transport and treat appropriately as below:

 Hazardous sludge after was pumped and compressed is marked hazardous and stored separately in hazardous wastes warehouse

 Periodically, Tai Tien Co Limited will bring their own vehicles to collect, and travel back with this path: Nhon Trach 3 IP  25B Provincial road  51 national road  Thai Lan 3-way crossroads  Trang Bom  1A national road

 Tay Hoa District  Tai Tien hazardous treatment plant (Nhan Hoa commune, Tay Hoa District)

1.5.3.2 Sludge Treatment Technology at Tai Tien Ltd Co

Sludge from the wastewater treatment system currently contracted with Tai Tien Ltd Co and will be treated as below:

The dried and dewatered sludge contains hazardous substances will be mixed with cement, then compressed into blocks to reduce pollution disperse into the environment As cement has high alkalinity, the heavy metals will kept under hydroxide or carbonate salts

The compressing often also often include Ca(OH)2 solution (to increase its acidity), or coal slag Coal slag and Ca(OH)2 can stabilize As, Cd, Cr, Cu, Fe, Pb, Mg,

Se, Ag, Zn…The blocks will then be landfilled under required standard inside the treatment plant border, rather than hand it to third party

The % of mixing based on mass is as below:

Table 8: Mixing Rates

Hazardous Wastes Incineration Slag Cement Lime Sand Water

Figure 8: Sludge solidifying process

1.5.3.3 Tai Tien landfill site

Tai Tien landfill site is constructed based on design TCXDVN 261:2001 with double layers and 2 trends to collect landfill leachate The detail layers are as below

+ Compacted original soil;

+ 0.3 m compacted clay layer (filtration coefficiency k 10-7 cm/s);

+ 2 mm HDPE layer;

+ 0.3 m sand filtration layer, (filtration coefficiency k = 0,9);

+ Geotexttile layer;

 Area: 156.73 m x 33.24 m x 11 m

 Total potential landfill volume: 61,378 m3

 Filled duration: 8 years (if the landfilling rate of hazardous solid wastes is 10 tons/ day)

 Actual landfilling rate at this point: 380 kg/day or around 10 tons per months

1.5.4 Total investment and Progression pace of the Wastewater Treatment Plant

1.5.4.1 Project total investment

Landfilling

Mixing

Incineration slag Inorganic Sludge

Additions

Compressing

Test/

sample

Table 9: Projecting of the investment

(VND)

Costs (VND)

2 Transition wastewater pump 2 102,666,667 205,333,333

3 Blower for aerating of stabilizer 1 88,150,000 88,150,000

4 Aerating system for stabilizer 1 97,000,000 97,000,000

5 Acid, alkaline storage tanks 2 5,666,667 11,333,333

6 Acid, alkaline injectors 2 23,232,000 46,464,000

7 Mixer for flocculation tank 1 35,200,000 35,200,000

8 Mixer for flotation tank 1 68,400,000 68,400,000

9 Tank to mix chemicals for

10 Mixer to mix chemicals for

11 Injector for flocculation 1 48,400,000 48,400,000

12 Tank to mix chemicals to aid