63.
(11) Patent number: 2154613
(46) Date of publication: 20.08.2000
(51) Int. Cl.7: C 02 F 1/72
(21) Application number: 99113568/12
(22) Application date: 21.06.1999
(71) Applicant:
Bajkal'skij institut prirodopol'zovanija SO RAN
(72) Inventor:
Rjazantsev A.A.,
Tsybikova B.A.,
Tsytsyktueva L.A.
(73) Proprietor:
Bajkal'skij institut prirodopol'zovanija SO RAN
(98) Mail address:
670047, g.Ulan-Udeh, ul. Sakh"janovoj 6, BIP SO RAN, direktoru BIP A.K.Tulokhonov
(54) METHOD OF TREATING WASTE WATERS TO REMOVE CYANIDES AND THIOCYANATES
(57)
FIELD: waste water treatment. SUBSTANCE: effluents are treated with hydrogen peroxide oxidizing cyanides and thiocyanates in presence of ferric compounds at hydrogen peroxide-to-iron(II) molar ratio (7-16):1. EFFECT: enabled high degree of purification of water at initial concentrations of pollutants superior to those in known method, and significantly reduced operation expenses. 3 ex
|
|
