Membrane & Separation Technology News articles

Recent articles from Membrane & Separation Technology News

FORWARD OSMOSIS FO Process Promises Lower Energy, Less Brine.
June 1, 2006... Yale University researchers are building a pilot-scale forward osmosis (FO) membrane plant that uses osmotic pressure, instead of hydraulic pressure or thermal evaporation, to desalinate brackish or seawater. The process promises significant energy and cost reductions compared to reverse...

Forward Osmosis Desalination Process Image sent separately.
June 1, 2006... Lower Energy Cost Heat used by the FO process can be minimized in quantity or in cost, or set at a balance between the two. In most cases, FO will use less than half of the thermal energy used in multi effect distillation (MED), the most efficient thermal desalination method. In...

Total Water Cost.
June 1, 2006... The researchers expect the combination of low energy costs, high water recoveries and lower brine discharge to make FO a useful and far less costly desalination process compared to RO or MED. But, only pilot testing will provide the necessary information for detailed estimates of total cost....

REVERSE OSMOSIS Polymer Up to 20X More Oxidant Tolerant.
June 1, 2006... Eltron Research chemists have manufactured a new class of polymers that can be used to fabricate RO and NF membranes with 10 to 20 times more resistance to oxidizing agents such as chlorine, stability to continuous contact with transition metals, good mechanical durability and increased water...

New Approach to Design.
June 1, 2006... Eltron's new materials are based on a polymer design strategy in which the polymers' supporting structure is partially decoupled from the pore structure to enable chemical flexibility. Because pore structure currently is coupled with the polymer backbone structure, significant changes made to...