reverse osmosis


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Related to reverse osmosis: electrodialysis

re·verse os·mo·sis

movement of solvent in the opposite direction from osmosis, that is, pressure filtration of solvent through a semipermeable membrane that will hold back the solutes; commonly replaced by filtration or ultrafiltration when speaking of capillary membranes, as in the renal glomerulus.

re·verse os·mo·sis

(rē-vĕrs' os-mō'sis)
Movement of solvent in the opposite direction from osmosis.

reverse osmosis

A form of water treatment that removes infectious particles and dissolved ions more effectively than other water purification techniques. Water so purified can be used in hemodialysis.
See also: osmosis
References in periodicals archive ?
Mr Tang Kin Fei, Group President & CEO of Sembcorp, said, "We are pleased to take our strong relationship with ourpartner ADWEA a step further with the planned development of the new reverse osmosis plant.
Before installing Reverse Osmosis Plant, the ground water is the main source for various leather processing operations.
In keeping with its commitment to organise a CygreenCO Olympics, three water reuse projects at Beijing employ more than 5,000 FILMTECao 8-inch diameter reverse osmosis (RO) membrane elements.
Reverse osmosis was a method also suggested by former Lahontan board member Eugene Nebeker, who spoke at the Wednesday meeting.
However, at the 228th American Chemical Society meeting held in Philadelphia in August 2004, Pedersen further reported that gas chromatography confirmed all 13 compounds to have been eliminated at two pilot plants testing reverse osmosis for contaminant removal.
TREMONT: There is a trend toward less chemical and more mechanical water treatment with applications such as thin film and chlorine resistant cellulose acetate reverse osmosis technology to handle up to 500,000 gal/day.
Distillation and reverse osmosis remove water contaminants and essentially demineralize the water.
illustrates the type of separation system required for separation of various sizes of dissolved and undissolved particles, starting with the ionic size range all the way to visible particles, and the corresponding necessary separation systems from reverse osmosis to sand filters.
The completion of the Tarpum Bay/Rock Sound Reverse Osmosis Desalination Plant was extremely important to the residents of South Eleuthera who have suffered for many years with poor quality water due to high salinity levels," said Philip J.
The project follows the trend for choosing reverse osmosis technology over thermal technology, such as Multi-stage Flash (MSF) or Multiple-effect Distillation(MED), which has traditionally been deployed in this region due to the lower cost of primary energy and the tendency to build large scale desalination plants.
The Dow Chemical Company has appointed Fluor Corporation to build a new manufacturing facility that will make high-tech reverse osmosis components for desalination plants.
Although reverse osmosis technology has been proven and is generally understood by most building and plant engineers, what is often overlooked is the importance of long term planning to optimise the efficiency and performance of each system.

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