ion exchange and adsorption of inorganic contaminants

... separation In addition to the normal sorptionoperations of adsorption and ion exchange, some other similar separa-tions are included Applications are discussed in this section in “Process Cycles.” ... theory Ion exchangeadds to these approaches concepts of absorption or dissolution(absorption) and exchange reactions Statistical mechanics and molec-ular dynamics contribute to our understanding of ... Dordrecht, The Netherlands, 1989. 22 Rudzinski and Everett, Adsorption of Gases on Heterogeneous Surfaces, Academic Press, San Diego, 1992. 23 Ruthven, Principles of Adsorption and Adsorption Processes,

Ngày tải lên: 23/08/2017, 23:24

... solu-tion by an ion exchange material and hence mathematically can be calculated using the formula given as: Kd¼mmoles of metal ions=gm of ion-exchanger mmoles of metal ions=ml of solution i:e: ... uptake of certain metal ions demonstrates not only the ion-exchange properties but also the adsorption and ion-sieve characteristics of the cation-exchanger The dif-ference in adsorption behavior ... reactions: where (I) = Deprotonation of the primary radical cation of o-anisidine, (II) = Isomerization of the nitrenium radical (III) = Formation of Monomer, (IV) = Reisomerization or formation of

Ngày tải lên: 13/01/2020, 04:14

... separation In addition to the normal sorptionoperations of adsorption and ion exchange, some other similar separa-tions are included Applications are discussed in this section in “Process Cycles.” ... theory Ion exchangeadds to these approaches concepts of absorption or dissolution(absorption) and exchange reactions Statistical mechanics and molec-ular dynamics contribute to our understanding of ... Dordrecht, The Netherlands, 1989. 22 Rudzinski and Everett, Adsorption of Gases on Heterogeneous Surfaces, Academic Press, San Diego, 1992. 23 Ruthven, Principles of Adsorption and Adsorption Processes,

Ngày tải lên: 11/04/2023, 20:21

... Grammatikos,Saunders and Swary (1986), have examined the sensitivity of bank returns and profits to interestrate and exchange rate risks through traditional on-balance sheet bank operations, we are unaware of ... sensitivity of stockreturns with respect to both basic balance sheet and derivative off-balance sheet exposures tointerest rate and exchange rate risk measures In equation (l), the standard definition of ... applying similar definitions for interest rate and exchange rate risk betas and substituting (2)for Ri, we obtain: (4)and (5) Prasad (1995), and Dumas and Solnik (1995) For inclusion of both factors,

Ngày tải lên: 29/03/2014, 13:20

... indicators Section provides a discussion of some important data considerations Section presents the cross-sectional analysis, and the final section concludes Estimation of Foreign Exchange Exposure ... influence on the extent of foreign competition, the demand for loans, and other aspects of banking conditions The purpose of this paper is to examine the size and significance of the exchange rate exposure ... of bank returns, r b, and on the appreciation of the exchange rate, s We measure the exchange rate exposure of the i* banking To verify that our results are not an artifact of our inclusion of

Ngày tải lên: 29/03/2014, 13:20

... composition of the cell wall components of the target bacterium, and configuration of the substrate (peptidoglycan) The range of bacteria sensitive to lysis may be wide, as in the case of endolysin of ... (colocalization of the lytic system genes) brings more evolutionary advantages in terms of their coordinated expression In addition to holin and endolysin, some dsDNA phages have another pair of proteins ... T5+ were taken from the collection of the Laboratory of Molecular Microbiology of the Institute of Biochemistry and Physiology of Microorganisms (IBPM RAS) Strains of E coli K12, B subtilis, M

Ngày tải lên: 30/03/2014, 02:20

... properties Preparation via a traditional solid-state reaction usually requires high temperatures and long firing cycles leading to the inevitable coarsening of particles and aggregation of the powders, ... 1Journal of Physical Science, Vol 20(1), 75–86, 2009 75Mechanochemical Synthesis and Characterisation of Bismuth-Niobium Oxide Ion Conductors S.N Ng*, Y.P Tan* and Y.H Taufiq-Yap Department of Chemistry, ... conductivity The plots of ionic conductivity versus reciprocal temperature are adequately fitted by the Arrhenius law: σT = σ0 exp (-Ea/KT) The activation energies (Ea) of oxygen ion diffusion for the

Ngày tải lên: 07/08/2014, 14:20

... stromata and yellow tendrils of conidia were present During the second year, the length of the lesion and canker dimensions were respectively 75% and 25% lower in plants subjected to excision (figure ... conditions would limit g and A in con-trol plants The parallelism between A and g variations and the constant concentrations of intercellular CO2(Ci, data not shown) suggests a direct effect of ... colonization was determined at the end of the study Gas-exchange and fluorescence measurements were carried out over two years on four leaves at similar onto-genic stage (young and fully expanded) of

Ngày tải lên: 08/08/2014, 14:21

... -(g + E/2) (Guehl and Aussenac, 1987), give an estimate of diffusive limitations to CO 2 assimilation. Stomatal and mesophyll components of A limitation can be evaluated ... petraea, and ≈ -4.0 MPa in Q pubescens and Q ilex. During drought, A and g decreased in parallel, which led to a linear relationship and was an indication of a close ... stress in the 3 oak species and that observed inhibition of net CO as2 similation seemed to be related mostly to stomatal closure and limitations of CO dif2... BR, Grant WJR (1988b)

Ngày tải lên: 09/08/2014, 03:24

... Identification of the prokaryotic ligand-gated ion channels and their implications for the mechanisms and origins of animal Cys-loop ion channels Asba Tasneem*, Lakshminarayan M Iyer†, Eric Jakobsson* and ... glutamate and cationic zinc [4-8] The receptors are also the targets of plant toxins such as nicotine and strychnine, conotoxins of snails, lophotoxins of corals, and many of the neurotoxins of elapid ... Cartoon2representations of ACHB Cartoon representations of ACHB (a) The ligand-binding dimer of ACHB; (b) the pentamer of ACHB The representations were derived from the crystal structure of the snail

Ngày tải lên: 14/08/2014, 14:21

... on distribution of SCE frequencies and sources of variation MATERIALS AND METHODS Subjects A total of 24 healthy animals were analyzed, 9 females and 15 males, from 3 different farms and belonging ... concentration). Bromodeoxyuridine (BrdU) acted for the last 26 h of the culture and was added to a final concentration of 5 Ilgjml (16 11M) for cultures of treatment 1 and to a variable concentration ... distribution was found to provide a very poor representation of the within-persons distributions of SCE In contrast, the negative binomial distribution was found to give a good represen-tation of

Ngày tải lên: 14/08/2014, 19:22

... investigation 11 2.4 Preparation of aluminium samples 17 2.5 Experimental procedure 21 2.6 Analysis 25 Trang 72.8 Discussion and limitations 29 2.9 Conclusions 31 3 Investigation II: Adhesion of ... minutes of sonication at 20 kHz 85 - 86 4.16 (a) – (d): The progression of the biofilm on Coupon 2 over ten minutes of sonication at 400 kHz 87 4.17 (a) – (d): The progression of the biofilm ... Microalgae Suspensions and Biofilms 145 7.5 Investigation IV: The Measurement of Impact and Shear Stresses of Impinging Bubbles 146 7.6 Investigation V: The removal of surface contaminants from

Ngày tải lên: 08/09/2015, 18:19

... CONSTRUCTION AND IMPLEMENTATION OF A DEDICATED BEAM LINE FACILITY FOR ION BEAM BIOIMAGING CHEN XIAO (B. Sc, SHANDONG UNIV) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... microscopy. In addition, she also offered me lots of help in life. I am also grateful to Associate Prof Thomas Osipowicz and Prof Mark Breese for their valuable discussions and suggestions on the project. ... cell and tissue imaging using MeV protons and helium ions, and the design and construction of this beam line is discussed in detail in chapter 3. The performance of the system was demonstrated and

Ngày tải lên: 09/09/2015, 10:15

... Monte Carlo calculations using software such Stopping and Range of Ions in Matter (SRIM) [41] Hence, this allows exact control of the penetration depth and makes the fabrication of multilevel structures ... structures are ion irradiation and electrical anodization High-energy ion beam irradiation with MeV protons or helium ions creates localized defects and increases the resistivity of a p-type silicon ... diagram of the fabrication process 116 Figure 7.2 Surface plots of the simulated reflectance of the Bragg reflectors as a function of wavelength and angles, in the TE and TM polarizations 117

Ngày tải lên: 09/09/2015, 11:21

... offices of plowing and hoeing; the lumps of soil being thereby more broken up and exposed to the action of atmospheric influences, which are often necessary to produce a fertile condition of soil, ... larger proportion of the soil, namely the clay, sand, and limy portions, are useful for purposes which have been named in the first part of this section, while the clay has an additional effect ... particular condition of inorganic matter is requisite for fertility? What is the fixed rule with regard to this? What is the condition of the alkalies in most of their combinations? Of the acids?...

Ngày tải lên: 29/06/2014, 15:20

... characterization and adsorption study Journal of Physical Science, Vol 19(1), 63–78, 2008 2.3.4 67 Preliminary biosorption study of Cd(II) ion Adsorption of Cd(II) ion from a single metal aqueous solution ... 0.05–0.5 g and the pH of the solution was kept constant at 6.0 RESULTS AND DISCUSSION 3.1 Isolation and Characterization of Chitin Isolation of chitin from prawn seawater shells consisting of depigmented, ... Effect of Adsorbent Mass on the Biosorption of Cd(II) Ion The effect of adsorbent mass on the biosorption of Cd(II) ion was examined by conducting adsorption experiments using fixed concentration of...

Ngày tải lên: 07/08/2014, 14:20

... Exchange and Promissory Notes (Geneva, 1930) The League of Nations Articles I - XI [Omitted] TITLE I - Bills of Exchange CHAPTER I - Issue and Form of a Bill of Exchange Article A bill of exchange ... Limitation of actions (Articles 70 and 71); 311 Holidays, computation of limits of time and prohibition 312 of days of grace (Articles 72, 73 and 74) The following provisions are also applicable to ... the original is null and void 269 CHAPTER X - Alterations Article 69 In case of alteration of the text of a bill of exchange, parties who have signed subsequent to the alteration are bound according...

Ngày tải lên: 22/10/2013, 10:15

... Configuration and Administration of Microsoft Exchange This document describes how to more securely install, configure, and administer the Microsoft Exchange Server and associated clients The focus of ... encryption and decryption of messages as well as the application and verification of digital signatures The client also stores the user’s private key in an encrypted manner The Exchange client and ... proceeding II Trademark Information Windows NT, Microsoft Exchange, and Microsoft Outlook are either registered trademarks or trademarks of Microsoft Corporation in the U.S.A and other countries All...

Ngày tải lên: 22/10/2013, 16:15

... explanation for the chemical composition of water from these samples It includes dilution of produced water source, followed by dissolution of gypsum and dolomite and precipitation of calcite (reactions ... concentrations of calcium (Ca) and other cations, trace metals, boron (B), and silica (SiO2) The reported concentrations for major cations and anions carry an uncertainty of ±3% Precision values ... Na and Cl, and has relatively high concentrations of Ca, Mg (Fig 3), Sr, Ba and NH4, but very low amounts of SO4, HCO3 (Fig 4) and H2S With the exception of Fe, the concentrations of trace metals...

Ngày tải lên: 14/02/2014, 03:20

... full-length v-KIND; DKIND1, deletion of KIND1; DKIND2, deletion of KIND2; DKIND1 + 2, deletion of both KIND1 and KIND2; DRasN, deletion of RasN; DGEF, deletion of RasGEF; KIND1, KIND1 domain; ... 600–767) region, we next generated a series of GST-fused deletions of the CD2-1 region (Fig 3E) and examined the interactions between bacterially expressed proteins of these subregions (Fig S1C) and ... domains of Spir-2 and PTPN13 were generated by RT-PCR and inserted into pEGFP-C1 and pGEX-4T-2 The N- and C-terminal regions of the v-KIND KIND2 and the MAP2 CD were generated by PCR and cloned...

Ngày tải lên: 14/02/2014, 19:20