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UDC 628.166.094.3

Zenitov N. A.

DKT-425 vehicle for pipeline disinfection

Summary

Maintaining water facilities in proper condition requires mandatory sanitary measures, i. e. disinfection. Lately many water companies in Russian cities have been increasingly using sodium hypochlorite as a disinfecting agent. Using it makes the technology of water disinfection easier and provides for maintaining the residual active chlorine in water. Disinfection is carried out by filling a water network section with water with addition of sodium hypochlorite in dosages rated for a time period required for killing hazardous microorganisms – bacteria, viruses etc. To provide for precise sodium hypochlorite dosing and supplying to the water network section under disinfection, for distributing the disinfecting agent uniformly  along the entire length of the section, and for convenient transporting and dispensing sodium hypochlorite in accordance with the safety rules DKT-425 vehicle based on Hyundai HD-65 automobile was suggested. It includes: a dosing unit with a membrane pump; a plastic tank for sodium hypochlorite; a tank for equipment washing with a self-priming pump, a hose and a nozzle; a filling hose and a feeding hose on hand-driven drums; a generating set; an air heating unit; and a plenum system. The technology of pipeline disinfection with the use of the dosing equipment of the vehicle is presented. The calculating formulae for determining the required amount of sodium hypochlorite, the time required for uniform filling the disinfected section with account of the carriage water flow are given. The examples of calculating the disinfection process parameters are set.

Key words

water pipeline disinfection , sodium hypochlorite , dosing equipment , vehicle for disinfection