I. Product Features
  1、The entire equipment can be buried below the frost layer or placed above ground. The surface above the equipment can be used for greening or other purposes, eliminating the need for building construction, heating, or insulation.
  2、The secondary biological contact oxidation process adopts a plug-flow biological contact oxidation method, which offers better treatment efficiency compared to completely mixed or two-stage串聯(lián) completely mixed biological contact oxidation tanks. It occupies a smaller volume than activated sludge tanks, adapts well to varying water qualities, and has strong resistance to shock loads.

It ensures stable effluent quality and prevents sludge bulging. The tank utilizes a new type of elastic立體 filler with a large specific surface area, facilitating microbial biofilm attachment and detachment. Under the same organic load conditions, it achieves a high removal rate of organic matter and enhances the solubility of oxygen in water.

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  3、The biochemical tank employs the biological contact oxidation method, with a relatively low volumetric load on the filler. Microorganisms are in the auto-oxidation phase, resulting in minimal sludge production. Sludge only needs to be discharged once every three months (90 days) or longer (via suction with a sewage truck or脫水 into sludge cakes for transport).
  4、In addition to conventional high-altitude exhaust for odor removal, this buried domestic sewage treatment equipment is equipped with soil deodorization measures.
  5、The entire equipment treatment system is equipped with a fully automatic electrical control system, ensuring safe and reliable operation. It generally does not require dedicated management on a daily basis, only periodic maintenance and upkeep. III. Several Usage Methods of Buried Domestic Sewage Treatment Units
II. Usage Methods
    Capable of treating comprehensive wastewater from domestic systems and similar organic sewage;
    Constructed with fiberglass reinforced plastic (FRP) and stainless steel, offering excellent corrosion resistance and anti-aging properties, with a service life of over 50 years;
    The complete set of equipment is simple to install and easy to operate. All mechanical devices are automatically controlled, and the entire unit can be installed below ground level; IV. Applicable Scope of Buried Domestic Sewage Treatment Units 
III. Applicable Scope
  1、Hotels, restaurants, sanatoriums, hospitals; 
  2、Residential communities, villages, towns; 
  3、Stations, airports, seaports, ships; 
  4、Factories, mines, military units, tourist spots, scenic areas; 
  5、Various industrial organic wastewater similar to domestic sewage.