FIELD: chemistry.
SUBSTANCE: system for biological filtration of man-made and natural water bodies has a regeneration zone in form of an artificially made natural filter for removing dirt and biological contaminants. Depending on the configuration of the regeneration zone, the filter has a wall or a shaft made from large rocks and/or blocks of insoluble rocks which form a reservoir filled with layers of granite gravel, crushed rock and screenings of fractions ranging from coarse to fine, as well as fine fractions of sand and schungite screenings. The layers are interlaid with geotextile. Mats on which Microzim bacteria are grown are laid. Pond water and coastal plants capable of cleaning water are grown on the surface of the regeneration zone. A plate-like water inlet is installed in the lower part of the system, said inlet being connected to a pump such that as water from the water body falls in the regeneration zone, is passes through all layers from top to bottom. The regeneration zone can be made in coastal places. The filtration area can be 1/3 of the water body.
EFFECT: invention facilitates self-treatment of a water body for several years while maintaining the natural balance.
3 cl
