METHOD OF PHYSICAL AND CHEMICAL WASTEWATER TREATMENT Russian patent published in 2014 - IPC C02F1/52 C02F3/02 C02F1/36 C02F103/32 

FIELD: agriculture.

SUBSTANCE: invention may be used for treatment of waste waters containing substances of organic nature, in the enterprises of food and fishing industry with the disposal of the isolated product. When implementing the method, the coagulant was used as surplus activated sludge concentrated to the dry matter content of 7-10 g/l. Then, the activated sludge is subjected to acoustic cavitation treatment. The mode of stiffness of the acoustic cavitation treatment is 2.5-3.5 kHz·hour. The stiffness of the mode is determined by the formula Θ=τ׃, where τ is the treatment time, hour, ƒ is the frequency of ultrasonic vibrations of the piezoelectric generator, kHz. The treated sludge is directed into the waste water in a ratio of 1:2, and the deposition is carried out. The precipitate is isolated and disposed.

EFFECT: method provides substantial simplification of purification technology while maintaining its efficiency.

2 cl, 4 dwg, 2 ex