RESEARCH AND IMPROVEMENT OF CLARIFIERS FOR WASTEWATER PRODUCTION OF PROTECTIVE COATINGS AND PRINTED CIRCUIT cards
The process of contact flocculation has been studied and highly efficient clarification plants equipped with shelf modules and contact flocculators before and at the outlet of wastewater have been developed on its basis. The efficiency of clarification of a thin-layer module with a descending-ascending water flow and built-in flocculation chambers reaches a suspension retention of up to 95% or more. Reconstruction of vertical settling tanks with a capacity of 200 m3 of treatment facilities of the base enterprise OJSC "Brest Electromechanical Plant" was carried out by adding a flocculation chamber and shelf inserts to them. The proposed reconstruction of the existing vertical settling tanks made it possible to increase the clarification effect from 50÷60% to 93%, increase the inter-flushing period of mechanical filters many times over, and significantly reduce the likelihood of sediment carryover.