公开(公告)号：NO783445A

公开(公告)日：1979-05-02

申请号：NO783445

申请日：1978-10-11

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WESTBROOK CLIFTON WAYNE ,  PARCELL LLOYD JAMISON ,  CLAYTON GARY LYNN ,  KLOCK BYRON VON

IPC: C02F3/34 ,  C02F1/58 ,  C02F9/00 ,  C02C

CPC classification number: C02F1/586 ,  C02F2101/18 ,  C02F2101/20 ,  C02F2101/22 ,  Y10S210/904 ,  Y10S210/908

公开(公告)号：NO783445L

公开(公告)日：1979-05-02

申请号：NO783445

申请日：1978-10-11

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WESTBROOK CLIFTON WAYNE ,  PARCELL LLOYD JAMISON ,  CLAYTON GARY LYNN ,  KLOCK BYRON VON

IPC: C02F3/34 ,  C02F1/58 ,  C02F9/00 ,  C02C

Abstract: A method is provided for the treatment of a waste water stream characterized by having toxic and corrosive properties due to the presence of a cyanides formates and a halide of a metal or ammonia comprising adding a ferrous ion to said waste water to convert the cyanides to iron cyanides, adding a base to said waste water until the pH of said waste water is adjusted to the range from about 9 to 11 to precipitate a sludge containing said iron cyanides, feeding said waste water to a biological reactor to convert said formates to carbon dioxide and a biological residue and recovering an environmentally upgraded waste water stream from said biological reactor.