Integrated wastewater treatment equipment process A/O process, SBR process, AAO process, MBR process. The main means of treatment for the use of biochemical treatment technology contact oxidation method, combined with the design of integrated domestic sewage treatment equipment is mainly domestic sewage and similar industrial organic wastewater treatment water quality parameters according to the general calculation of domestic sewage water quality.
The main components: hydrolysis acidification tank; contact oxidation tank; impurity sedimentation tank; disinfection treatment; sludge aerobic digestion tank.
1, hydrolysis acidification tank
The process is mainly dealt with before the sewage treatment pretreatment, the wastewater in the water for a certain amount of anaerobic fermentation, the sewage biochemistry to improve, this is a more important step before the treatment of sewage, which can directly affect the efficiency of later sewage treatment and processing time, you can maximize the efficiency of sewage treatment and reduce consumption.
2, contact oxidation tank
Oxidation tank according to the degree of pollution of water treatment is divided into several levels, ordinary and enhanced. Generally judged according to the treatment time. Processing time is not greater than four hours on the use of ordinary oxidation tank, processing time between 4-6 hours of the use of enhanced oxidation tank.
3, impurity sedimentation tank
The sewage after biological contact oxidation tank treatment of the effluent flow into the sedimentation tank, further precipitation to remove the shedding of biofilm and part of the organic and inorganic particles, sedimentation tank is based on the principle of gravity, when the sewage containing suspended solids from the bottom of the upward flow, the effect of gravity, will be the material will be precipitated down.
The upper part of the sedimentation tank is equipped with an adjustable outlet weir to adjust the outlet water level; the lower part is equipped with a conical sedimentation area and a sludge gas device, the gas source is supplied by a fan, and the sludge is transported to the sludge aerobic digesting tank by means of gas lifting.
4, disinfection
Disinfection tank according to the normative standards for 30 minutes, if the hospital sewage, disinfection tank to increase the residence time to 1-1.5 hours.
5, sludge aerobic digestion pool
Sedimentation tank discharged by the remaining sludge in the pool for aerobic digestion and stabilization, in order to reduce the volume of sludge and improve the stability of sludge. Aerobic digestion of sludge volume is small, cleanup can be used from the sludge tank inspection holes stretching to the bottom of the sludge tank suction and transportation can be (half a year to clean up once). The upper part of sludge aerobic digestion tank is equipped with supernatant reflux device, so that the supernatant overflow to the hydrolysis and acidification tank.
Expanded Information
Product Features
1, its treatment effect is better than the completely mixed or two-stage tandem completely mixed biological contact oxidation tank. And smaller than the activated sludge tank, strong adaptability to water quality, good shock load resistance, stable effluent water quality, will not produce sludge expansion. The pool uses a new type of elastic three-dimensional packing, large surface area, microorganisms are easy to hang the film, the film, in the same organic load conditions, the removal rate of organic matter is high, and can improve the oxygen in the air in the water solubility.
2, biochemical tank using biological contact oxidation method, the volume of filler load is relatively low, the microorganisms are in their own oxidation step off, the amount of sludge is small, only three months (90 days) or more than one discharge of sludge (pumping or dewatering of sludge into a mud cake transported by manure trucks).
3, the whole equipment processing system is equipped with automatic electrical control system and equipment failure alarm system, safe and reliable operation, usually do not need special management, only need to timely maintenance and repair of equipment.
Baidu Encyclopedia - Integrated Sewage Treatment Equipment
Baidu Encyclopedia - Integrated Sewage Treatment Equipment