Buried integrated domestic sewage treatment equipment

I. Overview
　On the basis of summing up the operation experience ofdomestic sewage treatment equipment athome and abroad, combined with our own scientific research achievements and engineering practice, a complete set of organic wastewater treatment equipment that can be buried is designed, namely WSZ series sewage treatment equipment with carbon steel corrosion as the main raw material. Its main purpose is to make domestic sewage and similar industrial organic wastewater treated by the equipment to meet the discharge standards required by users. Domestic sewage treatment equipmentis mainly used for domestic sewage treatment in residential quarters (including villa communities), senior hotels, hospitals, comprehensive office buildings and various public buildings. The effluent quality treated by this equipment meets the national discharge standard. The whole set of equipment can be buried underground, so it is also called buried domestic sewage treatment equipment.
    The company's buried domestic sewage treatment equipment adopts international advanced biological treatment technology, which integrates removal of BOD5, COD and NH3-N. It has the advantages of stable and reliable technical performance, good treatment effect, low investment, small land occupation and convenient maintenance. Our company can also according to customer requirements at the same time supporting water reuse equipment.

II. Product Features
1, a full set of equipment can be buried in the frozen layer below or placed on the ground, the ground above the equipment can be used as green or other land, do not need to build and heating, insulation.

2. Two-stage biological contact oxidation process adopts plug-flow biological contact oxidation, and its treatment effect is better than that of completely mixed or two-stage series completely mixed biological contact oxidation tank. Compared with activated sludge tank, it has smaller volume, strong adaptability to water quality, good impact load resistance, stable effluent quality and no sludge swelling. A new type of elastic three-dimensional filler is used in the tank, which has a large specific surface area and is easy for microorganisms to hang and remove films. Under the same organic load conditions, the removal rate of organic substances is high, and the solubility of oxygen in air in water can be improved. nbsp;
3. Biological contact oxidation method is adopted in biochemical tank, the volume load of filler is relatively low, microorganism is in self-oxidation stage, sludge production is small, and it only needs to discharge sludge once more than three months (90 days)(suction by dung truck or dehydration into sludge cake).

4. The deodorizing method of the burieddomestic sewage treatment equipment isequipped with soil deodorizing measures in addition to conventional high-altitude exhaust.
5, the entire equipment processing system is equipped with automatic electrical control system, safe and reliable operation, usually do not need special management, just timely maintenance and maintenance of the equipment.

Three,  buried sewage treatment plant several methods of use
•  It can treat comprehensive wastewater of domestic system and similar organic wastewater;
•  Glass steel, stainless steel structure, with corrosion resistance, anti-aging and other excellent characteristics, service life of   more than 50 years;
•  The complete set of equipment is simple in construction and easy to operate. All mechanical equipment is automatically controlled. All devices can be installed on the ground.

IV. Scope of application of buried domestic sewage treatment plant 
1. Hotels, restaurants, sanatoriums and hospitals; 
2. Residential quarters, villages and market towns; 
3. Stations, airports, harbors and docks, ships; 
4. Factories, mines, troops, tourist spots and scenic spots; 
5. Various industrial organic wastewater similar to domestic sewage.