Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1986-03-24
1987-07-07
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
208251R, 208179, 210720, 210721, 210725, 210904, 210912, 210913, 423509, 423561R, 423561B, C02F 152
Patent
active
046785841
ABSTRACT:
A method for treating a heavy metal-containing liquid, such as a wastewater stream, oil for recycling, or other metal-bearing liquid, with a trithiocarbonate, particularly an alkali metal trithiocarbonate, such as sodium trithiocarbonate, to precipitate the metals as insoluble sulfides. The precipitated metal sulfides are recovered as a low volume sludge, which can be processed through standard metallurgical techniques to yield the metals in economically useful forms. Among the most unexpected results produced by this method is the lowering of the selenium content in a naturally occurring body of water from 1.0 ppm to 0.0015 ppm.
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Cx/oxytech, Inc.
Hruskoci Peter
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