中山市Buried Integrated Sewage Treatment Equipment: A New Choice for Efficient and Eco-friendly Sewage Purification

       In terms of structural design, the most prominent feature of the buried integrated sewage treatment equipment is its "underground structure". The main body of the equipment is buried underground, with only a small operating space reserved on the ground. This design saves land resources greatly. For urban residential areas, industrial parks, scenic spots and other sites with limited land, there is no need to set aside a large above-ground area specially for sewage treatment. It effectively cuts land occupation costs and prevents the equipment from destroying the ground landscape, so the sewage treatment facilities can coexist in harmony with the surrounding environment.

       The equipment has remarkable advantages in treatment efficiency. It integrates multiple sewage treatment units including pretreatment, biological treatment, sedimentation and disinfection to form a complete integrated treatment system. After the sewage flows into the equipment, large particulate impurities are intercepted by the bar screen, then the water quality and water volume are balanced in the regulating tank. Afterwards, microorganisms in the biological reaction tank efficiently break down organic matter, nitrogen, phosphorus and other pollutants in the sewage. Compared with traditional decentralized sewage treatment facilities, the buried integrated equipment reduces sewage transportation between processing units, lowers energy consumption and the risk of sewage leakage, and greatly raises treatment efficiency. For domestic sewage treatment, the removal rate of COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand) can exceed 85%. The effluent can steadily meet national discharge standards. Some models can even realize reclaimed water reuse to improve water resource utilization further.