This article deals with water removal from oil-in-water emulsion by an ultrafiltration membrane at different transmembrane pressures. The membrane intrinsic resistance and gel resistance are analyzed and determined based on the resistance-in-series theory. The experimental results show that the effect of pressure on the permeate flux depends greatly on variations...
Application of membrane techniques (pervaporation and membrane-based solvent extraction) and adsorption to the removal of phenol from solutions modeling wastewater from phenol production by cumene oxidation process was investigated. The transport and separation properties of composite membranes PEBA, PERVAP 1060 and PERVAP 1070 in pervaporation of water-phenol mixtures were determined....
The main objective of this work can be specified in three steps as follows: develop a computer program as a general model for any type of RO system, predict plant performance as a function of time (8 months of operation), and perform comparative studies on the performance of the two...
Organic acids are increasingly used for various industrial applications. Bipolar membrane electrodialysis EDBM can be used to achieve the conversion of the acid salt into its acidic form. Its introduction in replacement of precipitation can significantly lower the environmental impact of the process. This paper is focused on the modeling...
Hoku Scientific, Inc. (NASDAQ: HOKU), amaterials science company focused on clean energy technologies, todayannounced it has accepted an offer from Operating Engineers Local UnionNumber 3, District 17 Hawaii to sell its property and facility inKapolei, Hawaii. The closing of the sale is subject to various contingencies, including thesale by Operating...
AsiaInfo Services06-15-2007Japanese Companies Intensify MBR Business in ChinaSHANGHAI, Jun 15, 2007 SinoCast via COMTEX -- Japanese companies expect China's demand for industrial wastewaters recycling equipment to grow, so they will reinforce their businesses of membrane bioreactor MBR for treating water in the Chinese market, reports Japanese media.Toray ACS Co., Ltd....
Business Editors/High-Tech Writers LOS ANGELES--BUSINESS WIRE--April 1, 2003 Teledyne Technologies Incorporated (NYSE:TDY) today announced that Teledyne Energy Systems, Inc. delivered a 5 kilowatt breadboard proton exchange membrane PEM fuel cell power system to NASA. The delivery was made as part of Teledyne Energy Systems multi-year contract...
Excluding research and development costs - which rose from GBP5.2m to GBP5.9m - Porvairs operating profits before exceptional items slumped by 45 per cent to GBP4.2m. This was largely due to poor demand at the groups US-based Selee business, which supplies filters to the aluminium and...
Gore Fuel Cell Technologies (201 Airport Road, Elkton, MD 21922- 1488; Tel: 410/506-7700) unveiled key new membrane technologies at the 2002 Fuel Cell Seminar that project 40,000-hour life under real-world stationary fuel cell operating conditions. "This is the cumulative result of our worldwide...
The Long Beach CA Water Department and the Los Angeles Department of Water and Power LADWP agreed last month to construct and operate a desalinization prototype plant in Long Beach. The Long Beach Water Department said it will build and operate a 250,000-gal.per-day research and development...
ANN ARBOR, Mich.--HealthWire--Dec. 15, 1995--Gelman Sciences Inc. (AMEX:GSC) shareholders voted at the company's annual meeting to reelect board members Dr. Nina I. McClelland, Dr. Saul H. Hymans, and Company President and Chief Operating Officer Kim A. Davis, to terms expiring in 1998. The company also announced the formation of a...
Articles 1995-12-15
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