Wsz-a integrated equipment
Product introduction:
The removal of organic pollutants and ammonia nitrogen from the wsz-a series of sewage treatment equipment is mainly dependent on the AO biological treatment process in the equipment. Which works in class A, as A result of high concentrations of organic sewage gas state, in the microbial organisms as facultative microorganisms, their organic wastewater in the ammonia decomposition of NH3 - N, at the same time using organic carbon as electron donor, will be NO ˉ 2 - N, NO ˉ 3 - N into N2, and use part of the organic carbon source and NH3 - N synthesis of new cellular material. So A level pool not only have certain organisms to function, reduce the organic load of subsequent aerobic pool, aiming to the nitrification, and rely on the existence of relatively high concentration of organic matter in raw water, complete denitrification, eventually eliminate eutrophication pollution of nitrogen. At the O level, the concentration of organic matter has been greatly reduced, but there is still a certain amount of organic matter and a higher nh3-n. In order to make a further oxidative decomposition of organic matter, at the same time under the condition of carbonation in complete nitrification can proceed smoothly, in O level setting low organic loading of aerobic biological contact oxidation pool. In the o-level pool, there are mainly aerobic microorganism and oxygen type bacteria (nitrifying bacteria). Aerobic microorganisms decompose organic matter into CO2 and H2O. Autotrophic bacteria, denitrifying bacteria using inorganic carbon produced by the decomposition of organic matter or CO2 from the air as nutrition, NH ˉ 3 - N transformation in the sewage into N ˉ 2 - ON, N ˉ part 3 - ON, O pool water back into the class A pool, to provide A level pool electron acceptor, through denitrification eventually eliminate nitrogen pollution.
WSZ - type A integration of sewage treatment equipment using the world's advanced biological treatment process, the removal of BOD5, COD and NH3 - N in one. It is widely used in hotels, senior villas residential and residential district sewage and similar industrial organic wastewater treatment, the WSZ - A series of sewage treatment equipment is A kind of ideal treatment effect and convenient management of equipment. Can be buried, can be partially buried, can be on the ground.
Detailed description:
Detailed description:
Wsz-a series integrated sewage treatment equipment overview:
With the deepening of China's opening to the outside world, China's tourism industry and real estate industry to flourish, senior hotel and villa district, and senior hotel and villa community are often far away from the city sewage treatment plant, the inconvenience to the central treatment of sewage. In order to protect the environment and benefit future generations, the wsz-a series of sewage treatment equipment has been successfully developed by Chinese overseas Chinese. The equipment adopts advanced biological treatment technology in the world, and it is the most efficient sewage treatment equipment at present, with the collection of BOD5, COD and nh3-n. It is widely used in high-end hotels. The domestic sewage treatment in villa community and residential area replaces the removal rate, which can not meet the national comprehensive discharge standard. The field application shows that wsz-a series sewage treatment equipment is an ideal and easy to manage equipment.
Working principle:
Working principle:
An overview of the：
WSZ - A buried sewage treatment integration equipment adopts world advanced biological treatment process, the removal of BOD5, COD and NH3 - N in one. It is widely used in hotels, senior villas residential and residential district sewage and similar industrial organic wastewater treatment, replacing the removal rate is very low, after processing integrated water can not meet the national discharge standard of septic tanks. The field application shows that wsz-a series sewage treatment equipment is an ideal and easy to manage equipment.
Scope of application:
Hotel, nursing home, hospital, school, residential district, villa community and other domestic sewage treatment.Aquatic processing farm, livestock processing plant, fresh milk processing plant to produce waste water treatment.
Product features
Product features
Wsz-ao sewage treatment equipment can be buried under the surface, and the surface can be used as green or square land. Therefore, the equipment does not cover the surface area, does not need to be built, and does not need heating and insulation.
The wsz-a sewage treatment equipment is composed of the secondary pool, the material is steel structure, and the depth is shallow. The steel structure pool is anticorrosive with the most advanced epoxy coal tar paint. It can resist acid, alkali, salt, gasoline, kerosene, aging resistance, abrasion resistance, rust prevention. After the equipment is generally painted with the coating, it can last up to 10 years.
WSZ - A buried sewage treatment equipment of AO biological treatment process using push flow biological contact oxidation pool, it is superior to the processing of completely mixed or secondary and tertiary series hybrid biological contact oxidation pool completely. Moreover, it is smaller than the activated sludge pond, and has good adaptability to water quality, good impact resistance, stable water quality and no sludge expansion. At the same time in the biological contact oxidation pool used the new elastic solid filler, it has a real big surface area, microbial membrane, membrane is convenient, under the condition of same organic load, higher than other fillers on the removal rate of organic matter, can increase the oxygen in air solubility in water. Due to the use of biological contact oxidation pool in AO biological treatment process, the volume load of the filler is relatively low, and the microorganisms are in their own oxidation stage, so the amount of mud produced is less. In addition, the moisture content of hanmud produced by biological contact oxidation pool is much lower than that of activated sludge pond. Therefore, the amount of sludge produced by the WSZ series of sewage treatment equipment is relatively small, which usually takes only about 90 days.
WSZ - A series of sewage treatment equipment form A complete set of automatic alarm system, electric control system and equipment damage equipment reliability is good, so normally the need of personnel management, monthly quarterly maintenance and maintenance.
Technological process:
Technological process:
1. Description of wastewater treatment process:
Biofilm method is used in this project: hypoxia -- good oxygen (A/0) treatment process. A/O the anaerobic + aerobic biological contact oxidation process is A kind of mature biological treatment technology, has A high volume load, biological degradation speed, cover an area of an area small, infrastructure investment and low operation cost, can replace the original urban sewage treatment by ordinary active sludge method, especially suitable for medium and high concentration of industrial wastewater treatment, and province, covers an area of less investment, high processing efficiency. The process is mature and reliable by means of biological contact oxidation and precipitation. Precipitation sludge in equipment, due to the effect of dissolved oxygen in part of the sludge has been further oxidation decomposition, part of the gas stripping to settling tank, the system only regular in settling sludge pump in the tank. In the system, the main control equipment, such as the fan and the submersible pump, is fed into the PLC machine to achieve automatic work, so as to reduce the operation workload and reduce unnecessary human damage.
1.1 grid:
The discharged sewage is collected by the pipe network system and then enters the subsequent processing system after the coarse grille. The coarse grilles are mainly used to block the large floating objects in sewage, so as to ensure the normal operation of the structures and reduce the processing load effectively, so as to guarantee the long-term normal operation of the system.
1.2 sewage regulation pool:
It is used to adjust the water quantity and uniform water quality, so that the sewage can be more evenly distributed into the subsequent processing unit. Adjusting pool set pre aeration system, can improve the impact resistance of the whole system, and the reduction of wastewater in anaerobic condition of stench, at the same time can reduce the design of the subsequent processing unit scale, sewage pool submersible sewage pump is installed inside, to elevate sewage to the subsequent processing unit.
1.3 hypoxia pool:
An elastic filler is set up in a hypoxic pool to block small suspended solids in sewage and remove some of the organic matter. The denitrification and denitrification were obtained in the anoxic pool after the reflux, and the removal rate of ammonia nitrogen was increased. After anoxic treatment of sewage into aerobic biological treatment ponds.
1.4 contact oxidation pool:
Most of the raw sewage in the degradation of organic matter and purification, aerobic bacteria with packing as a carrier, use of organic matter in sewage for food, organic matter decomposition in the sewage into inorganic salts, purification so as to achieve purpose. The survival of aerobic bacteria must be sufficient oxygen, that is, sufficient dissolved oxygen in sewage to achieve the purpose of biochemical treatment. Aerobic pool is provided by the fan air, pool using new semi soft packing, the packing surface area than the big, long service life, easy hanging membrane, corrosion resistance, bottom using microporous aerator, make high dissolved oxygen transfer rate, at the same time there is light weight, not aging, not easy jam, long service life, etc.
Two parts in the contact oxidation pool:
Packing: this process adopts a new type of three-dimensional elastic packing, which has the advantages of large surface area, long service life, easy mounting film and corrosion resistance. Can have certain stiffness at the same time, the packing, the bubbles of sewage in multi-level cutting, increase the efficiency of dissolved oxygen (do), moreover between packing and packing is not easy to cluster, avoid the jam of oxidation pond.
Aerator, microporous aerator is applied in this process, the dissolved oxygen transfer rate is higher than other aerator, the biggest characteristic is not aging, light weight, long service life, and has the advantages of corrosion resistance, not easy jam.
1.5 sedimentation tank:
Sewage after dealing with the biological contact oxidation pool artesian water into the pond, and precipitation to further remove the fall off of biofilm and part of the organic and inorganic particles, settling basin is based on the principle of gravity, when sewage containing suspended solids flow from down to up, by gravity, will settle matter. After the settling pond, the water is clearer and more transparent. The secondary sedimentation tank is a vertical flow sedimentation tank, and sludge pump is used to carry the mud to the sludge digester regularly. The treated water after precipitation enters the follow-up processing equipment.
1.6 disinfection pool
Sewage after precipitation, virus and e. coli index is still at the end of the meet emissions standards, in order to eliminate viruses and e. coli, cast slice of disinfectant chlorine disinfection treatment, in the form of folded plate, relying on its own gravity, direct emissions near the municipal pipeline.
1.7 sludge digester:
The residual sludge discharged from the sedimentation tank is treated with aerobic digestion in the tank to reduce the volume of the sludge and improve the stability of the sludge. After aerobic digestion, the amount of sludge is less, and regular contact is made by the sanitation department to remove the external transport or the sludge dewatering. The supernatant was used to return to the regulating tank.
1.8 the fan:
It is used to contact oxidation pond gas supply, adjust pool pre-aeration and sludge digestion tank.
2. Electrical control instructions.
PLC fully automatic control of sewage treatment equipment from water inlet to outlet water. The specific control contents are as follows:
(1) the liquid level control device is set up in the sewage regulating tank, and the high liquid level automatically runs; Low level stop pump.
(2) the fan is operated alternately and continuously. The two fans can set the automatic switching interval according to the requirement.
(3) the sewage treatment station is recommended to use dual power supply. The main machine pumps are used alternately for each other, so as to ensure the normal operation.
(4) each kind of electrical equipment start-up, shut down and switch the linkage by programmable controller automatically according to the program, at the same time on the panel of the control cabinet is equipped with automatic, manual switch, switch to manual control when necessary.
(5) all kinds of electrical equipment are equipped with circuit short circuit and over-carrier device, and the indicator light is set to display the working status of each electrical equipment.
3. Equipment room and operation room.
The electric control cabinet shall be set in the ground building, and it is recommended to be disposed in the water treatment room next to the main structure of sewage treatment, so as to facilitate daily operation management and equipment maintenance.
4. Anti-corrosion measures
In the process of underground sewage treatment equipment, the material of the main equipment is steel structure, which is deeply anticorrosive. The inner and outer surfaces are treated with mechanical derusting, and the inner and outer surfaces are embalmed with epoxy coal tar. All connected pipes and fittings are made of PVC and ABS material, which can resist corrosion of acid, alkali and salt. Steel parts are anticorrosive with epoxy coal tar.
Technical parameters
Technical parameters
Wsz-f equipment technical parameters table:
Wsz-a integrated equipment 2018/04/16 Views Times
