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Evaluation of different carbon and nitrogen sources in production of biosurfactant by Pseudomonas fluorescens
... range of pH. Analysis by infrared spectroscopy (FTIR) and HPLC were also performed. Keywords: Biosurfactant; Production; Factors; Optimization; Characterization; Stability 1. Introduction Research in the area of biosurfactants has expanded quite a lot in recent years due to its *Corresponding author.
Desalination 223 (2008)
... polymerization, and the hydrolysis products distribution of PSF was calculated from the pH changes during the hydrolysis process of PSF. The characterization of PSF and total phosphorus (TP) removal by PSF were studied in comparison with that of polyferric aluminum (PFA). The results revealed tha ...
Desalination 250 (2009)
... valuable support to this study. We would also like to thank Dr. Shijie Wu for his help with the AFM images. Desalination 198 (2006) 173–182 Characterization of membrane foulants in drinking water treatment Daniella B. Mosqueda-Jimenez, Peter M. Huck* University of Waterloo, 200 University Ave. Wes ...
Desalination 198 (2006)
... 4, 1.865×10!4, 1.193×10!4, 0.979×10!4 and 0.445×10!4 mol g!1, respectively. Keywords: Sepiolite; Modification; Zeta potential; Adsorption; Characterization; Metal ions 0011-9164/08/$– See front matter © 2008 Elsevier B.V. All rights reserve ...
Desalination 230 (2008)
The determination of interaction parameters in the characterization of polyetherimide gas separation membranes using the Horvath-Kawazoe model
The results indicate the importance of parameter deter- Desalination 148 (2002) 341–346 The determination of interaction parameters in the characterization of polyetherimide gas separation membranes using the Horvath-Kawazoe model J. Kurdi, A.Y. Tremblay* Department of Chemical Engineering ...
Desalination 148 (2002)
A number of resins have been synthesized by reacting 2,2’-dihydroxybiphenyl with urea and formaldehyde in presence of 2M HCl as catalyst, proved to be selective chelating ion-exchange resins for certain metals. Chelation ion-exchange properties of these terpolymer were studied for Fe3+, Cu2+ ...
Desalination 250 (2009)
... by the exposure of arsenic to explain why water treatments need to use the membrane technology to meet the MCL standard. Keywords: Arsenic; Characterization; Distribution; Toxicity; Arsenic regulations; Membrane technologies; RO; NF; UF; MF 1. Introduction Arsenic is the twentieth most abundan ...
Desalination 172 (2005)
... due to the competition between concentration polarization and dilution effects at the studied range of TMP. Desalination 221 (2008) 284–293 Characterization and retention of NF membranes using PEG, HS and polyelectrolytes Nidal Hilala*, Mohammed Al-Abria, Hilal Al-Hinaib, Mousa Abu-Arabic a Centr ...
Desalination 221 (2008)
Paul Sabatier, 31062 Toulouse Cedex 9, France email: firstname.lastname@example.org Received 22 October 2005; accepted 4 March 2006 Keywords: Characterization; Polysulfone; Ageing; Ultrafiltration; Hypochlorite 1. Introduction Membranes periodically undergo chemical cleanings. For applications to th ...
Desalination 199 (2006)
Predicting power density of pressure retarded osmosis (PRO) membranes using a new characterization method based on a single PRO test
... a fundamentally Please cite this article as: J. Lee, S. Kim, Predicting power density of pressure retarded osmosis (PRO) membranes using a new characterization Fig. 11. Comparison between the modeled and experimental power densities; (a) PEI-2# (DS: 1 M NaCl, FS: 40 mM NaCl), (b) PRO-TFC-HF (DS: 1 M