METHOD OF GALVANOCOAGULATION PURIFICATION OF INDUSTRIAL WASTE WATER Russian patent published in 1997 - IPC

FIELD: waste water purification. SUBSTANCE: method may find use for detoxifying drains from galvanic production as well as those in metallurgical, chemical, and other industries. Solution to be treated is passed in pulse-mode through layer of filter charge being agitated and consisting of a mixture of disperse components composing galvanic couple. Simultaneously oxygen is fed into solution under treatment. For charge components, values of parameter [(ρ_s-ρ)/ρ]α³ψ³ are provided to be equal, where ρ is density of solution being treated, kg/cu.m; r_s density of solid particles, kg/cu.m; α average particle size (diameter), m; and j averaged form (sphericity) factor. A formula is offered to calculate intensity of solution pulsation. EFFECT: enhanced efficiency of purification. 2 cl, 3 tbl