Membrane & Separation Technology News articles from October 2002

Membrane & Separation Technology News archives from October 2002

REVERSE OSMOSIS: Treatment Renders Oilfield Brines Reusable.
October 1, 2002... Researchers at Texas A&M University (TAMU) have developed a commercially viable, on-site filtration process that transforms "produced water" from oil and gas operations into a reusable fresh resource. Pumping oil and gas from the ground...

MICROFILTRATION: In-Line Sampler Monitors Microbes.
October 1, 2002... Millipore Corp. has introduced the MicropreSure In-Line Filtration Sampler as a convenient, ready-to-use, in-process tool for monitoring microbiological conditions during the manufacture of bottled and pharmaceutical water. Rather than...

Express Plus Cups Filter Biologicals Faster.
October 1, 2002... Millipore is featuring its recently introduced Express Plus fast- flowing, low-protein binding PES membrane in a pair of disposable vacuum filter cups, the Stericup and Steritop. Express Plus membranes sterilize tissue culture media, serum and...

MATERIALS: Molecular Squares Have Tailored Pores.
October 1, 2002... Researchers from Northwestern University's Department of Chemistry and Department of Chemical Engineering are fabricating nanoporous membranes from "molecular squares" or "rectangles" that could prove useful in extremely selective chemical...

BIOMEDICAL & BIOMEMBRANE Albumin Dialysis Removes Toxins.
October 1, 2002... Teraklin AG's MARS-Molecular Adsorbent Recirculating System, a hollow fiber-based extracorporeal hepatic support machine, may help critically ill liver patients survive to organ transplant. The device uses two circuits, selective...

Tiny Pores Help Nanogate Deliver.
October 1, 2002... Researchers at iMEDD (intelligent Micro Engineered Drug Delivery) are developing an implantable drug delivery device based on nanoporous silicon membranes. Using photolithography, thin-film deposition, and selective etching, the membranes can...

FUEL CELL & ED: Substrate Makes Films Flexible.
October 1, 2002... Ballard Power Systems, Inc. researchers have discovered that polymers with a tendency to become brittle in a dehydrated state can be fabricated into mechanically stable composite fuel cell membranes, even in a fully dehydrated state, by...

ION EXCHANGE: Polymer Improves Lithium Ion Transport.
October 1, 2002... Auburn University researchers have fabricated lithiated perfluorinated polymeric ion exchange membranes for use as separators/electrolytes in rechargeable batteries. The ionomers offer excellent physical and chemical stability, an ionic...

PERVAPORATION: Grafted CSP Offers Best of Both Worlds.
October 1, 2002... UCLA's Yoram Cohen has patented a ceramic-supported polymer (CSP) pervaporation membrane in which the surface of the ceramic substrate is modified with grafted polymer chains to form an asymmetric covalently bonded polymer surface layer. The...

MEMBRANE CHROMATOGRAPHY: Good Properties from Chitosan Composites.
October 1, 2002... Scientists at Canada's Waterloo University have fabricated and successfully tested composite membranes, consisting of chitosan coated onto coarse filter paper, that demonstrate a large liquid flow rate and good mechanical properties. The...

INDUSTRY NEWS: Water Reuse Plant Comes On-Line.
October 1, 2002... On August 28, Fulton County, Georgia, officially opened the Cauley Creek Water Reclamation Plant, the first Georgia facility to use ultrafiltration and the first to introduce a comprehensive reuse program. Located on the outskirts of Atlanta,...

Desalination Coming to Massachusetts.
October 1, 2002... Plans are underway to construct the Massachusetts first reverse osmosis drinking water desalination plant along the salty Taunton River in Dighton. Diminishing water resources in the state, a result of population growth and pollution,...

Long Beach to Build Prototype Plant.
October 1, 2002... Long Beach Water Department has signed a cooperative cost-sharing agreement with the Bureau of Reclamation to begin design and construction of a $5.3 million prototype desalination plant in Long Beach, California. Long Beach's Water...

Briefly Noted:.
October 1, 2002... * Solvay Advanced Polymers, L.L.C. (Alpharetta, GA) has launched a website at www.solvaymembranes.com designed to help membrane manufacturers and end users better understand the benefits of using polymers, and learn more about Solvay's product...

CALENDAR.
October 1, 2002... November 18-19, 2002. The 2002 Twentieth Annual Membrane/Separations Technology Planning Conference, Marriott Hotel, Newton, MA. Contact: Sharon Faust, Business Communications Co., Inc., 23 Van Zant St., Norwalk, CT 06855; Tel: 203/853-4266,...

INDUSTRY INSIGHT: pH Membranes in Bioreactor-Applications in Wastewater Treatment.
October 1, 2002... By Michael J. Semmens, Department of Civil Engineering, University of Minnesota, Minneapolis, MN 55455 The benefits of using membranes in bioreactors are quickly being recognized in the U.S. and are being evaluated for a variety of...

Background.
October 1, 2002... In conventional wastewater treatment, solids are first separated in a primary sedimentation tank, and the clarified water containing mainly soluble organic waste is mixed with a mixed culture of microorganisms and sent to an aeration process....

Opportunity: Solids Separation.
October 1, 2002... Secondary sedimentation is a relatively poor solids removal process. Biosolids are rich in organic content and if they overflow the sedimentation tank, treatment performance suffers. Unfortunately, changes in operating conditions (E.G....

Opportunity: Gas Transfer.
October 1, 2002... Aeration is a very important process in the treatment of wastewaters. Oxygen must be supplied in sufficient amount to meet the needs of the microorganisms cultivated to break down organic wastes. Conventional aeration processes that rely on...