Small buried sewage in rural areas Water treatment equipment goods in stock
Rural domestic sewage, including domestic washing sewage, kitchen and toilet flushing sewage, and livestock and poultry sewage, has the characteristics of wide range of pollution, multiple sources, difficult collection, complex composition, significant regional differences, and high concentrations of suspended solids, organic matter, nitrogen and phosphorus. The amount of domestic sewage in rural areas is generally lower than that in urban areas, but due to the lack of perfect be launched Due to weak treatment system and economic foundation, the treatment rate of rural domestic sewage is far lower than that of urban sewage. Sewage is discharged to nearby water bodies along road ditches or roads, causing surface water or groundwater pollution, affecting the safety of drinking water of surrounding residents, and directly threatening the health of water environment.
According to the data of the Ministry of Housing and Urban Rural Development, as of 2015, there were 17848 organic towns in China (Tibet, Hong Kong, Macao and Taiwan were not included in the statistics), and 25.3% of the total number of organic towns in China treated domestic sewage. There are 11500 townships and 2.645 million villages in China, with a registered population of 765 million. Only 815 townships have treated domestic sewage, accounting for 7.1% of all townships. These two sets of data fully show that a large number of rural domestic sewage has not been treated, and it is particularly urgent and important to strengthen rural domestic sewage treatment.
Spot of small buried sewage treatment equipment in rural areas Product advantages:
1. The whole set of equipment can be buried below the frozen layer or placed on the ground, and the ground above the equipment can be used as greening or other For land use, there is no need for building houses, heating and insulation.
2. The two-stage biological contact oxidation process adopts the plug flow biological contact oxidation process, and its treatment effect is better than the fully mixed or two-stage series fully mixed biological contact oxidation tank. It is smaller than the activated sludge tank, has strong adaptability to water quality, good shock load resistance, stable effluent quality, and will not produce sludge bulking. New elastic solid is used in the pool filler The specific surface area is large, and the microorganism is easy to hang and remove the membrane. Under the same organic load conditions, the organic matter removal rate is high, which can improve the solubility of oxygen in the air in water.
3. Biological contact oxidation method is adopted for biochemical tank. The volume load of its filler is relatively low, and the microorganism is in its own oxidation stage, so the sludge production is small. It only takes more than three months (90 days) to discharge the sludge (pumped or dehydrated into mud cake and transported out).
4. The underground domestic sewage treatment equipment is provided with soil deodorization measures in addition to conventional high altitude exhaust.
5. The whole equipment processing system is equipped with a fully automatic electrical control system, which is safe and reliable in operation. Usually, there is no need for special personnel to manage the equipment, just timely maintenance and repair of the equipment.
6. The whole body is made of Q2356mm thick carbon steel (thickness can be customized)
7. Three layers of equipment anti-corrosion materials epoxy Coal tar pitch anti-corrosion technology (can be customized according to customer needs).
Spot of small buried sewage treatment equipment in rural areas The equipment is mainly designed for the treatment of domestic sewage and industrial organic sewage. The main treatment method is to use the relatively mature biochemical treatment technology to contact the oxidation tank. The water quality design parameters are calculated as follows: the influent BOD5 of sewage is 250mg/L, and the effluent BOD5 is 20mg/L. It is composed of seven parts: ⑴ primary sedimentation tank; ⑵ Anoxic tank; ⑶ Contact oxidation tank; ⑷ Secondary sedimentation tank; ⑸ Disinfection tank and disinfection device; (6) Sludge tank; (7) Composition of fan room.
Spot of small buried sewage treatment equipment in rural areas Pay attention to the construction performance of sewage treatment projects. The auditors checked whether the construction scale of the plant area and supporting pipe network met the planning and design requirements, whether the site selection violated the drinking water source protection zone system, and whether the construction site affected the living environment of residents due to its proximity to the residential area by consulting the project approval, preliminary design, land use approval and other documents.
