METHOD FOR CLEANING INTERNAL SURFACES OF HEAT POWER AND PROCESS EQUIPMENT FROM SCALE DEPOSITS WITH THE DESCALER Russian patent published in 2020 - IPC C11D1/00 C11D1/66 F28G9/00 B08B3/08 

FIELD: technological processes.

SUBSTANCE: invention relates to cleaning surfaces from scaling and can be used in factories where scale of various inclusions is formed on the equipment. Purification method consists in treating the internal surfaces of the equipment with the preparation. Preparation contains a microbial suspension based on milk whey using pure cultures of highly productive strains of lactic acid bacteria. Contains passivating additives: urotropin, thiourea and urea, as well as nonionic surfactants: triton X-100, TWEEN-80, and water. Components ratio, wt%: microbial suspension 77.1-80.3; urotropin 0.3-0.5; thiourea 0.3-0.5; urea - 3.5-3.7; Triton X-100 1-2; TWEEN-80 0.5-1; water - balance.

EFFECT: invention ensures reduction of duration of cleaning procedure, simplification and reduction of required process operations, reduction of power consumption and cost of used components, and accordingly, of entire method of decontamination.

1 cl, 1 ex