treatment of seafood processing wastewater

... degree of pollution of a wastewater depends on several parameters The most important factors are the types of operation being carried out and the type of seafood being processed Fish processing wastewater ... NaCl/L This research aimed to study the effect of salt (NaCl) concentration on the treatment efficiency of seafood processing wastewater by the use of a laboratory-scale bioreactor, which is operated ... understand the effect of salt content on the processing efficiency of the system when the salt content of 3% affects the processing efficiency of the system Therefore, when the effect of retention times

Ngày tải lên: 27/05/2020, 04:17

... that the treatment of seafood processing wastewater should occur before discharge A candidate method for this treatment is Constructed wetlands offer significant advantages in terms of low capital ... efficiency of these processes Studies by various authors have highlighted the significance of these microbial communities in wastewater treatment systems.Although the magnitude of effects of plants ... ρг0ເessiпǥ faເƚ0гɣSeafood processing wastewater contains high concentrations of pollutants, including suspended solids, organic matter, and nutrients These substances can degrade the quality of aquatic

Ngày tải lên: 10/07/2023, 18:37

... Review of the literature The most common treatment process consists of chemical physical treatment step, and biological treatment step depending on the composition of the wastewater Biological wastewater ... seafood processing is realistic and necessary at the moment situation of Vietnam Objectives of Study - Using constructed wetland to treat seafood processing wastewater, - Optimization pretreatment ... values of Vietnamese Standards (Department of Natural resources and environment of Hochiminh City), Therefore, with given reasons, using constructed wetlands for treatment of wastewater in seafood

Ngày tải lên: 14/05/2025, 09:24

... 6iv LIST OF TABLES Table 1.1 The advantages and limitations of various methods utilized for the treatment Trang 7LIST OF FIGURES Figure 1.1 Schematic diagram of detailed mechanism of photocatalytic ... of wastewater treatment, the challenges and disadvantages involved with the conventional treatment methods, advanced oxidation processes focusing on the application of photocatalysis to the treatment ... August 2020 Trang 4ii TABLE OF CONTENTS ACKNOWLEDGMENT i LIST OF TABLES iv LIST OF FIGURES v LIST OF ABBREVIATIONS vi INTRODUCTION 1 Research Objectives 4 Structure of thesis 5 CHAPTER 1 LITERATURE

Ngày tải lên: 24/12/2020, 22:42

... 6iv LIST OF TABLES Table 1.1 The advantages and limitations of various methods utilized for the treatment Trang 7LIST OF FIGURES Figure 1.1 Schematic diagram of detailed mechanism of photocatalytic ... of wastewater treatment, the challenges and disadvantages involved with the conventional treatment methods, advanced oxidation processes focusing on the application of photocatalysis to the treatment ... August 2020 Trang 4ii TABLE OF CONTENTS ACKNOWLEDGMENT i LIST OF TABLES iv LIST OF FIGURES v LIST OF ABBREVIATIONS vi INTRODUCTION 1 Research Objectives 4 Structure of thesis 5 CHAPTER 1 LITERATURE

Ngày tải lên: 14/05/2021, 07:00

... VIETNAM 2.1 OVERVIEW OF SEAFOOD PROCESSING ENTERPRISES FOR EXPORT IN VIETNAM 2.1.1 Overview of the seafood industry According to a report of the Vietnamese association of seafood exporters and ... framework on the quality of information in the financial statements of enterprises Chapter 2: Current situation of the quality of information in the financial statements of seafood processing enterprises ... Characteristics of production and business activities of seafood processing and exporting in Vietnam First, seafood processing enterprises for export in Vietnam operating in the seafood industry

Ngày tải lên: 20/10/2024, 18:37

... contents: Overview of the natural rubber processing industry; Characteristics of NRP wastewater; The situation of study and treatment of NRP wastewater in domestic and oversea; Wastewater treatment methods ... meters of wastewater This is among the wastewaters having a very high level of pollutants of organic matter, nitrogen, phosphorus and total suspended solids (TSS) Currently, wastewater treatment ... Main research content of the thesis 1) Overview of current technologies for treatment of NRP wastewater; 2) Study on removal of organic substances and energy recover from NRP wastewater by Expanded

Ngày tải lên: 23/09/2020, 12:50

... digestion of sludges and anaerobic decomposition of wastewater in anaerobic lagoons fall in this category A typical layout of a wastewater treatment plant incorporating biological treatment ... spectrum of activities and development of environmentally safe microbial systems. 30 4 TYPES OF REACTORS Three types of reactors have been idealized for use in bio-logical wastewater treatment ... coupling of a toxicant or its metabolite with a carbohydrate, an amino acid, or a derivative of one of these According to Warren 19 , the additive interaction of two toxic substances of equal

Ngày tải lên: 10/08/2014, 20:20

... Cubic foot of H2O to gallons 6 Gallons of water to weight 7 Gallons per minute to million gallons per day 8 Pounds to feet of head (the measure of the pres-sure of water expressed as height of water ... Million) One of the most common terms for concentration is grams per liter (mg/L) For example, if a mass of 15 mg ofoxygen is dissolved in a volume of 1 L of water, the con-centration of that solution ... surface L = channel length D = depth of water and wastewater Problem: Determine the volume of wastewater (in gallons) in a section of trapezoidal channel when the wastewater depth is 5 ft. Given:

Ngày tải lên: 11/08/2014, 10:22

... function of pumps.) 7.4.1 W EIGHT OF A IR Our study of water hydraulics begins with air A blanket of air, many miles thick, surrounds the earth The weight of this blanket on a given square inch of ... or supply side of the pump when the supply is loaded above the center of the pump discharge side of the pump or supply side of the pump when the supply islocated below the center of the pump the ... 177Specific Gravity (sp gr) the result of dividing the weight of an equal volume of water at 68°F If the data is in grams per milliliter, the specific gravity of a body of water is the same as its density

Ngày tải lên: 11/08/2014, 10:22

... Handbook of Water and Wastewater Treatment Plant OperationsImportant Point: Because of the wide variety of materials that piping systems can convey, the components of piping systems are made of dif-ferent ... Handbook of Water and Wastewater Treatment Plant Operationsdiscuss the behavior of fluids in a piping system, and the methods of connection sections of pipe 8.3.4.1 Characteristics of Metallic ... manufacturing process or a treatment process (such as fluid flow in water and wastewater treatment) For example, one of the major unit process operations in wastewater treatment is the sludge digestion

Ngày tải lên: 11/08/2014, 10:22

... which has an atomic weight of one because of the single proton The atomic weight of an element is equal to the total number of protons and neutrons in the nucleus of an atom of an element In order ... settling of the particles The resultant accumulation by settling is often called sediment or biosolids (sludge) or residual solids in wastewater treatment vessels Between this extreme of readily ... Water and Wastewater Treatment Plant Operationsthe weight of matter accordingly reduces to zero Yet, the matter still possesses the same amount of “mass.” Hence, the mass and weight of matter

Ngày tải lên: 11/08/2014, 10:22

... required for wastewater treatment and disposal Wastewater professionals soon recognized the need to develop methods of treatment that would accelerate nature’s way (the natural purification of water) ... an indicator of the condition of the wastewater Condition refers to the age of the wastewater, which along with odor, provides a qualitative indication of its age Early in the flow, wastewater ... protecting public health The goal of this early wastewater treatment program was to remove suspended and floatable Trang 4368 Handbook of Water and Wastewater Treatment Plant Operationsmaterial,

Ngày tải lên: 11/08/2014, 10:22

... waste independent of domestic waste. 4. Combined wastewater — Consists of a combi- nation of sanitary wastewater and storm water runoff. All the wastewater and storm water of the community is ... best uses of the waters. 5. Protect adjacent lands. Wastewater treatment is a series of steps. Each of the steps can be accomplished using one or more treatment processes or types of equipment. ... Handbook of Water and Wastewater Treatment Plant Operations 18. 8.4.1 Percent Removal EXAMPLE 18. 23 The expected range of. .. 550 Handbook of Water and Wastewater Treatment

Ngày tải lên: 11/08/2014, 10:22

... values of Vietnamese Standards (Department of Natural resources and environment of Hochiminh City) Therefore, with given reasons, using constructed wetlands for treatment of wastewater in seafood processing ... Review of the literature The most common treatment process consists of chemical physical treatment step, and biological treatment step depending on the composition of the wastewater Biological wastewater ... optimization of the pretreatment system The pre -treatment system had the volume of 250L, and operated continuously, it needed a large volume of wastewater Thus, artificial wastewater was made of squid...

Ngày tải lên: 09/01/2015, 08:53

... concentrations of 250 mg/L are objectionable, however, would depend upon the degree of acclimation of the user to the water In Antipolo, a barrio of Cebu in the Philippines, the normal source of water of ... Constituents of Water and Wastewater 131 freedom from toxic materials, favorable pH and osmotic pressure conditions, optimal amount of nutrients, and the presence of significant amount of population of ... Physical–Chemical Treatment of Water and Wastewater 2.1.26 PRIORITY POLLUTANTS Before the 1970s, control of discharges to receiving bodies of water were not very strict During those times, discharge of partially...

Ngày tải lên: 11/08/2014, 10:22

... Projected area of paddle blade Sum of projected areas of paddle blades Length of paddle blade Coefficient of drag Width of paddle blade The diameter of the impeller Diameter of vessel Distance of impeller ... length of the paddle blades of the longest compartment to that of the length of the paddle blades of the middle compartment is 2.6:2, and the ratio of the length of the paddle blades of the middle ... velocity of bubbles Average rise velocity of water Tangential velocity of paddle Paddle tip velocity Volume of tank Volume of bubble Average volume of bubbles in tank Average volume of bubble...

Ngày tải lên: 11/08/2014, 10:22

... of the cylindrical element of fluid; Fg is the weight of the fluid in the element; Fsh is the shear force acting on the fluid along the surface areas of the grains; dV is the volume of element of ... the temperature of filtration The value of c may be determined by performing an experiment of the particular type of sludge To determine α o , take the logarithms of both sides of Equation (7.67), ... filter sand of sieve analysis of Problem 7.10 is used to construct (a) a slow-sand filter of average porosity of 0.39 operated at 9.33 m /m ⋅ d and (b) a rapid-sand filter of average porosity of 0.42...

Ngày tải lên: 11/08/2014, 10:22