Liquid purification or separation – Processes – Treatment by living organism
Patent
1990-02-07
1991-04-30
Silverman, Stanley
Liquid purification or separation
Processes
Treatment by living organism
210614, 210623, 210747, 210170, 210194, 47 14, 435262, 435946, C02F 332
Patent
active
050116045
ABSTRACT:
A method and system for removing pollutants dissolved in the aqueous discharge of a plant, such as a power plant, from a body of water having known hydraulogy and physicochemical characteristics, the method comprising (a) modifying the hydraulic system of the body of water including use of physical barriers to define a zone in a portion of the body of water which zone includes the discharge point and where the water has a range of physicochemical characteristics; (b) selecting a large and preferably filamentous, planktonically growing strain of algae adapted to absorb the particular pollutants and genetically dominating algae at the physicochemical characteristics of the zone; (c) establishing a colony of the selected algal strain in the zone; (d) harvesting a portion of the colony; and (e) reinnoculating the zone near the discharge point with a fraction of the harvested portion. The fraction used for reinnoculation can be adjusted to balance the rate of pollutant removal to the rate of pollutant discharge.
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Benemann John R.
Tillett David M.
Weissman Joseph C.
Wilde Edward W.
Constant Richard E.
Dixon Harold M.
Hamel Stephen D.
Silverman Stanley
Upton Christopher
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