METHOD OF SEWAGE PURIFICATION Russian patent published in 2005 - IPC

FIELD: methods of sewage purification.

SUBSTANCE: the invention is pertaining to a method of sewage purification. Before feeding of the sewage into a prepit it is passing through a placed in the crossway direction lattice for trapping the floating refuse and through a located in the prepit floating bon made from the oil products sorbing material and having an arch-shaped form. After a gating the water through a section with the highest water greenery the water passes through a mobile filter with a sorbent loading to provide a possibility of sorption during a non-vegetable season of biogenous matters and heavy metals. The depth of the prepit is exceeding the average depth of the water reservoir for settling of the large suspended matters and drift. The technical effect is an increased efficiency of purification due to a possibility to conduct it in extreme conditions (flooding of great volumes of oil products and other contaminants at accidents on roads and bridges), and also in spring-winter conditions (non-vegetative period).

EFFECT: the invention ensures an increased efficiency of purification conducted in usual and in extreme conditions.

2 cl, 2 dwg