DRAIN WATER DISPOSAL METHOD Russian patent published in 2023 - IPC E02B11/00 

FIELD: agriculture.

SUBSTANCE: irrigation and drainage systems for disposal of mineralized drain in accordance with Article 44 of the Water Code of the Russian Federation Use of Water Bodies for the Purpose of Discharging Sewage, Including Drainage, Water. A method for recycling drainage runoff, including the process of natural evaporation of drainage water from the surface of an evaporation pond, divided into compartments and connected to a supply channel, as well as the use of a hydrophobic material. According to the invention, the slopes and the bottom of the pond are covered with a waterproofing polyethylene membrane for intense evaporation and protection against secondary salinization, the compartments are placed sequentially, the flow of drainage waste is regulated by devices having flat sluice gates, each of the compartments is equipped with flow guide spurs from ten filter devices installed in a row and arranged in a checkerboard pattern to separate large fractions of wastewater suspension using the resulting serpentine flow. Each filter device is made in the form of gabion nets, with the lower part of the nets being used as a base filled with solid bulk filler, and the upper part being used to fill with plant residues in order to create an environment favourable to the development of microorganisms involved in the biological treatment of drainage runoff.

EFFECT: improved efficiency of evaporation and utilization of drainage waste in the irrigation and drainage system.

1 cl, 2 dwg