Buried Domestic Sewage | Anaerobic-Aerobic Treatment Unit| Recycling and Reuse Uni

Working Principle Domestic sewage first enters the buried treatment unit, where a screen catches debris and an equalization tank evens out the flow. It then moves into the biological treatment zone. Under anoxic and aerobic conditions, microorganisms break down organic matter and remove ammonia nitrogen and total phosphorus. After that, it goes into the settling zone for solid-liquid separation, and the clear water is disinfected before discharge. The energy-saving treatment equipment runs on low power, and the buried setup saves ground space. The treated water then flows into a recycling and reuse unit for further filtration and disinfection, and can be reused for irrigation, road washing, or toilet flushing. Application Fields 1.Centralized residential areas: collected and treated together, then reused for landscape and irrigation. 2.Scattered households: treated on site without relying on the municipal sewer network. 3.Public institutions: on-site treatment for places with concentrated people and peak discharge periods. 4.Commercial service areas: guest room and restaurant wastewater separated and pre-treated, then treated together biologically. FAQ Q1: Where can buried domestic sewage treatment equipment be installed? A: It works well for communities, towns, schools, hospitals, hotels, and similar places. The main unit sits underground, so the surface above can be used for landscaping or paving—no ground space taken up. These sites don't generate huge amounts of sewage, but the sources are scattered, so on-site treatment is more practical than connecting to the municipal sewer. Q2: Does energy-saving treatment equipment really save power? A: Compared with a traditional sewage plant, this type of equipment combines pre-treatment, biological treatment, settling, and disinfection into one unit, cutting the energy used for intermediate pumping and separate aeration. Fans and pumps run on demand, so overall power use is lower. Day-to-day maintenance is simple, and it doesn't need someone watching it 24/7. Q3: What can the treated water be used for? A: The effluent goes into a recycling and reuse unit, and after filtration and disinfection, it can be used for irrigation, road washing, or toilet flushing. If the quality stays steady, it can also meet discharge standards. That cuts both discharge and water supply costs.