SYSTEM OF OXYGEN CURTAIN FOR DRAINAGE PROTECTION Russian patent published in 2010 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: system of oxygen curtain for drainage protection includes aeration plant connected along system of pipelines to injection walls. Wells are installed into drained bed in zones of passage of soil ferromanganese waters at the distance of 10-30 m from protected drainage, and oxygen-enriched water is sent into water-bearing drained bed. At the same time injection wells are combined in groups and installed in staggered order along protected linear drainage upstream along with unloading of soil waters flow. Treated drained water is removed along protected linear drainage. At the same time each group of injection walls is connected to a separate aeration plant, to which drain wells are connected for periodical extraction of a part of soil waters cleaned from ferric and manganese ions in zone of oxygen curtain, and their enrichment with oxygen with further supply of aerated water into injection wells.

EFFECT: increased efficiency of operation and service life of linear drainage structures, prevention or minimisation of colmatage processes in linear elements of earth dams drainage and developed areas under conditions of water drainage with high content of ferric and manganese ions, prevention of waterworks contamination in areas of point discharges of drainage waters.

4 dwg