Izotov A. A., Chief Engineer, Candidate of Engineering Sciences, e-mail: izotov_aa@viogem-sp.ru, Ponomarenko Yu. V., Scientific Consultant, Candidate of Engineering Sciences, VIOGEM Institute

The level of filtration waste from accumulators of drains is shown. Well-known methods of lowering of filtration waste on functioning accumulators of drains are examined, as well as limitations of sphere of their use. The new method of lowering sewage leakages from accumulators in the process of their exploiting without stopping the works during the period of fulfillment of anti-filtering operations elaborated in “VIOGEM” public corporation is offered. It is based on making of inclined anti-filtering screens of injection type under a bed of stores. For practical aims, two technological schemes of forming waterproof bed of drains accumulators are offered — 1 onesided and 1 two-sided. On the base of realized theoretical investigations and filtration estimations, effectiveness of use of inclined screens for lowering of leakages from the functioning accumulators of drains is shown. Practical use of inclined anti-filtering screens is shown in the case of designing of waterproofing operations at Kovdor ore mining and processing enterprise. Advantages of the mentioned method during development work of the concerned variant of the precipitation tank waterproofing are shown:
- possibility of fulfillment of insulating works in any time of a year;
- protection of environment from contamination with industrial drains;

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