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Coal mining wastewater is complex and changeable. In the same mine wastewater, it also contains heavy metals such as iron and manganese, non-metallic and organic pollutants such as sulfur, fluorine, and chlorine, and suspended solids. Some mine wastewater is weakly acidic, even in the same mine. Different layers are mined, and the properties of wastewater are also different, even very different. This brings great difficulties to the selection of coal mine wastewater treatment technology.
The quality of coal mine sewage is similar to that of general urban sewage, but it is different from urban sewage (urban sewage often includes part of industrial wastewater). Its characteristics can be summarized as follows: large changes in water quality and quantity, low pollutant concentration, good biodegradability of sewage, and low treatment difficulty.
The integrated buried sewage treatment equipment is mainly based on the A/O biochemical process, and integrates biodegradation sewage sedimentation, oxidation and disinfection and other processes for domestic sewage and industrial wastewater similar to domestic sewage. The equipment has a compact structure and a small footprint. All It is a high-efficiency sewage treatment device that is installed underground, operates economically, has strong anti-shock concentration capability and high treatment efficiency.
The sewage treatment equipment produced by Dior water treatment manufacturers is mainly used for the post-treatment of sewage in residential quarters (including villas), high-end hotels, hospitals, comprehensive office buildings, various public buildings and various industries. The complete set of equipment can be buried underground, so Also known as "buried domestic sewage treatment equipment".
The company's buried domestic sewage treatment equipment adopts the international advanced biological treatment process, which integrates the removal of BOD5, COD and NH3-N. It has the advantages of stable and reliable technical performance, good treatment effect, low investment, less land occupation, and convenient maintenance. .
The equipment adopts domestic advanced technology and manufacturing technology to produce WSZ-AO series sewage treatment equipment with carbon steel, glass fiber reinforced plastic and stainless steel
1. Product Features
1. Buried below the surface, the surface above the equipment can be used as greening or other land, without the need for building, heating and heat preservation.
2. The two-stage biological contact oxidation treatment process adopts the plug-flow biological contact oxidation, and its treatment effect is better than that of the complete mixing type or the two-stage series-connected complete mixing type biological contact oxidation tank. Compared with the activated sludge tank, the volume is smaller, the adaptability to water quality is strong, the impact load resistance is good, the water quality of the effluent is stable, and there is no sludge bulking. The tank adopts a new type of elastic three-dimensional filler, which has a large specific surface area, and microorganisms are easy to hang on the film and remove the film. Under the same organic matter load condition, the removal rate of organic matter is high, and the solubility of oxygen in the air in water can be improved.
3. The biochemical tank adopts the biological contact oxidation method, the volume load of the filler is relatively low, the microorganisms are in the self-oxidation stage, and the amount of mud produced is small. Dehydrated into mud cakes for shipment).
4. In addition to conventional high-altitude exhaust, the deodorization method of the buried domestic sewage treatment equipment is also equipped with soil deodorization measures.
5. The entire equipment processing system is equipped with a fully automatic electrical control system and equipment failure alarm system, which is safe and reliable in operation. Usually, there is no need for special personnel to manage, but only need to maintain and maintain the equipment in a timely manner.
1. It can treat the comprehensive wastewater of living system and similar organic wastewater;
2. It adopts asphalt paint anti-corrosion and glass fiber reinforced plastic anti-corrosion, which has excellent characteristics such as corrosion resistance and anti-aging, and has a service life of more than 15 years;
3. The complete set of equipment is simple in construction and easy to operate. All mechanical equipment is automatically controlled, and all equipment can be set below the surface.
1. Hotels, restaurants, nursing homes, hospitals;
2. Residential quarters, villages, market towns;
3. Stations, airports, seaports, ships;
4. Factories, mines, troops, tourist spots, scenic spots;
5. Various industrial organic wastewater similar to domestic sewage.
1. Foundation: If the equipment is placed above the floor, it is only necessary to prepare a concrete floor with the same shape as the equipment as the foundation. The foundation pressure must be greater than 4T/m2, and it is also required to be level and flat. If the equipment is buried below the floor, the elevation of the foundation must be less than or equal to the elevation of the equipment and to ensure that no water will accumulate when it rains.
2. Installation: According to the installation drawing, the boxes are in place in sequence. The position and direction of the boxes cannot be misplaced. The distance between them must be accurate, and the pipes should be connected well. Inject clean water into the equipment and check whether there is any leakage in each pipeline. If there is no leakage, cover the surrounding of the box with soil until the equipment inspection hole and level the ground. Connect the control line of the electric control box to the water pump, and the electric control box to the power supply. When wiring, pay attention to the direction of the fan and motor, which must be in the same direction as the fan.
At present, some coal mine industrial sites and residential areas have each built a sewage treatment plant, two land acquisitions, repeated construction, increased investment, high operating energy consumption, high management costs, scattered technical forces, and high water treatment costs per ton. According to the experience of the engineer of Dior water treatment factory, generally speaking, the mine industrial site and the residential area are not very far apart. It is more reasonable to build a sewage treatment plant of a certain scale. Considering the drainage from the residential area to the industrial site, the pipeline is buried too deep. A sewage lifting pumping station can be set up in the middle, or land acquisition and construction of a sewage treatment plant can be made in the middle section between the industrial site and the residential area. The joint construction method can not only save investment, but also greatly reduce operating costs.
