LABORATORY RESEARCH OF THE TECHNOLOGICAL PROCESS OF INTENSIFICATION OF NEUTRALIZATION PURIFICATION OF WASTE WATER OF GALVANO PRODUCTION PREPARED USE OF ALKALINE SOLUTIONS OF PAST ELECTRICAL ACTIVITIES
The results of laboratory studies of the technological process of intensification of the neutralization treatment of industrial wastewater containing ION-66 heavy metals, providing for the use of alkaline solutions that have undergone electroactivation treatment, in a membrane electrolyzer with iron anodes are presented. It has been established that the use of a 40% aqueous solution of sodium hydroxide that has undergone electroactivation treatment, containing sodium ferrate at a concentration of Cf = 12 g / l in the technological process of neutralization treatment, which provides for filtration aftertreatment, makes it possible to increase the concentration of heavy metal ions in the treated wastewater by the level: Iron - 0, 03 mg / l, copper - 0.01 mg / l, chromium III - 0.02 mg / l, zinc - 0.01 mg / l, nickel - 0.02 mg / l.