The materials commonly used in underground integrated sewage treatment equipment includeFRPand carbon steel. When purchasing equipment, you need to ask the supplier about the materials used. When the workmanship and other conditions are the same, the prices of different materials will vary greatly. No matter how the supplier introduces the performance of the equipment, the supplier should be required to provide previous successful cases, and then send people to investigate its on-site sewage treatment effect.

       1. Advantages:

       The equipment is buried below the surface, and the surface above the equipment can be used as greening or other land, without building houses, heating and insulation. The two-stage biological contact oxidation process adopts push-flow biological contact oxidation, and its treatment effect is better than that of a fully mixed or two-stage series fully mixed biological contact oxidation tank. Compared with sludge tanks, it has the advantages of small size, strong water quality adaptability, strong impact load resistance, stable effluent water quality, and no sludge expansion.

       The tank uses elastic three-dimensional filler, which has a large specific surface area and is easy for microorganisms to film and remove. Under the same load, the removal rate of organic matter is high, which can increase the solubility of oxygen in the air. The biochemical pool adopts biological contact oxidation method. The filler volume load is low, the microorganisms are in their own oxidation stage, and the sludge production is small. Underground typeIntegrated sewage treatment equipment90The sludge only needs to be discharged once every day or more (the sludge is sucked into the mud cake or transported out after dehydration).

       In addition to conventional high-altitude exhaust, deodorization methods also include soil deodorization measures. The entire equipment processing system is equipped with a fully automatic electrical control system and equipment failure alarm system, and operates stably. Usually there is no need for dedicated management, just regular maintenance of the equipment.

       2. Disadvantages:

       设备故障时不利于维护，维修不方便。环境适应性、冬季防冻、夏季防洪北方需要深埋保温。适用条件：水量小、污染物浓度低、成分简单、场地有限等，一般情况下，建议采用地埋式Integrated sewage treatment equipment系统进行处理。