COMPACT PLANT OF DEEP BIOLOGICAL TREATMENT OF SEWAGE WATERS AND BIOLOGICAL TREATMENT OF SLUDGE Russian patent published in 1999 - IPC

FIELD: plants for deep biological treatment of sewage waters and biological treatment of sludges from separate cottages or cottage group. SUBSTANCE: plant has receiving vessel with removable grate connected with sewer standpipe whose one side wall is common with part of side wall of outer vessel and is simultaneously connected by means of pressure line of pump-crusher and bypass with receiving chamber. Plant has vessel for treated water with discharge outlet pipe whose one side wall is common with part of side wall of outer vessel. Vessel for treated water is connected with secondary settling tank by means of trough with regulated toothed overflow and outlet on its vertical wall. Chamber of settled water is connected by its inlet through overflow with annular trough and by its outlet it is connected through funnel-shaped branch pipe with bioreactor. Installed in inner vessel is airtight connected with compressor so that airtight inlet hole is located in bottom part of inner vessel and outlet hole is connected with receiving chamber. The plant provides for production of purified water of high quality and possibility of utilization of fermented sludges for production of compost. EFFECT: higher efficiency. 9 cl, 4 dwg