English
Subsurface sewage treatment equipment is designed to be buried underground, with access hatches left for maintenance. The surface area above the equipment can be utilized for parking lots, landscaping, or lawns, allowing it to integrate seamlessly with the natural environment. It is primarily used for the treatment of domestic sewage—as well as organic wastewater similar in composition to domestic sewage—in locations lacking municipal sewer networks, or in decentralized settings where minimal land footprint and aesthetic appeal are required. Applications include:
1. New rural developments, "Beautiful Villages" initiatives, rural communities, and rural tourism homestays.
2. Residential complexes, private villas, inns, hotels, and resort centers.
3. Schools, hospitals, office buildings, highway service areas, and toll stations.
4. Scenic spots, parks, campsites, high-speed rail stations, airports, and other decentralized locations.
5. Small-scale sewage treatment stations in townships, and domestic sewage treatment for temporary construction sites.
II. Process Flow
Influent → Bar Screen → Equalization Tank → Anaerobic Tank → Anoxic Tank → Aerobic Tank (Biological Contact Oxidation) → Sedimentation Tank → Disinfection Tank → Compliant Discharge / Reuse
III. Advantages
The entire unit is buried underground, thereby occupying no surface space, preserving the landscape, and effectively reducing noise and odors. It relies on microbial degradation to remove organic matter, ammonia nitrogen, and total phosphorus; the treated effluent meets discharge standards and can be utilized for landscaping irrigation, road watering, or replenishing landscape water features. The system operates fully automatically, requires no constant supervision, is easy to maintain, and ensures stable, reliable performance.
