Patent ID: 8580122
Filing Date: 2013-11-12
Classification: C02F,Y02W

Abstract:
1. A hybrid chemical/mechanical water treatment method for inactivating and removing pharmaceuticals, personal care products, perchlorates, heavy metals, solids, phosphates, and chemicals in waters, water inflow streams, and process liquid streams, comprising: a. determining the pharmaceuticals, personal care products, perchlorates, heavy metals, solids, and chemicals composition of the waters, water inflow streams and process liquid streams and employing either: I. a reduction oxidation chemical treatment comprising: a injecting SO b. holding the waters, water inflow streams, and/or process liquid streams treated by injection of SO c. mechanically separating and disposing of any solids including sulfate/sulfite precipitates forming a chemically treated liquid fraction, .d raising the pH of the chemically treated liquid fraction to inactivate chemicals that are pH inactivated or form precipitates at a pH in excess of 7, e separating any precipitates from the chemically treated liquid fraction forming a filtrate, and adjusting the pH of the filtrate for reuse and f. testing for remaining chemicals in the filtrate, which are inactivated by oxidation and injecting an oxidizing agent into the filtrate to oxidize said remaining chemicals, or II. an oxidation/reduction cycle adding oxidizing agents before step b to the water, water inflow streams and process liquid streams to neutralize or precipitate chemicals inactivated by oxidation and omitting step f.