Adjusting pre aeration pool taken)
Homogenization of water quality, stable water level, flocculant dosing coagulation -
Liquid after the separation, the lift pump into YanYangChi anaerobic treatment, anaerobic bacteria in the decomposition of wastewater treatment equipment model greatly reduce wastewater under the action of BOD5, gravity into A period of hydrolysis acidification pool, sewage hydrolytic acidification in them, will be difficult to biodegradable macromolecular organic matter into the small molecules that easily biodegradable organic waste water after water quality regulation on hydrolysis and acidification in this unit, the purpose is to decomposition of organic pollutants (pops) such as large molecular weight proteins into smaller molecular weight organics, oxygen biochemical treatment unit for the next level of guizhou province (
Four level city, two areas and three autonomous prefectures and sewage treatment equipment
of nine etda)
: four cities: guiyang, liupanshui city, zhunyi, anshun city, qinghai province,
1 and 1 area, 6 autonomous prefectures and two county-level cities)
: 1 level city, xinjiang uygur autonomous region in xining city (
2 level city, seven areas, 5 autonomous prefectures and 20 county-level cities)
: 2 places: urumqi, karamay, rural sewage decentralized wastewater treatment equipment technical solution to strong infiltration filter system is a kind of artificial sewage treatment equipment model of sewage ecological treatment system, sewage after pretreatment by septic tanks, remove the large suspended after pitching control match to the filtration device, and then spread in the soil capillary force under the action of gravity and motion, wastewater by physical entrapment in the migration process, physical and chemical adsorption, chemical precipitation, microbial degradation, dynamic integration of xi 'an ground object function of sewage treatment equipment be purged when using red soil + 25% coal cinder to deal with sewage infiltration filter system, its removal rate of COD is 82.
7%, the removal rate of TP is as high as 98.
0% of NH4 + -
The removal rate of N 70.
0% of TN removal rate of 77.
Bai Yonggang, trickling filter treatment of rural domestic sewage, Chinese style trickling filter under stable operation state of COD, NH4 + -
The contribution rate of N, TN and TP removal of 74 respectively.
5% the above several kinds of treatment system, suitable for rural domestic sewage treatment in our country, at the same time should pay attention to the application of source separation processing technology, namely the preferred pollution source control, reduce the content of pollutants in wastewater and then adjust measures to local conditions, can use anaerobic treatment combined with this way, or use the earthworm ecological filter and constructed wetland serial processing, earthworm ecological filter and infiltration filter system series treatment series, trickling filter and constructed wetland treatment or artificial wetland and the combined technology to deal with infiltration filter system and so on, so as to achieve better water quality, further improve the current situation of rural water environment pollution in our country
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