I. Introduction

Subsurface integrated wastewater treatment equipment primarily utilizes biochemical processes such as A2O, MBR membrane, SBR, and MBBR, integrating biological degradation, sedimentation, oxidation, and disinfection. This equipment is compact, occupies minimal space, and is fully installed underground. It operates economically, has strong resistance to shock concentrations, high treatment efficiency, and easy maintenance. User feedback confirms that all performance aspects meet the relevant requirements, and the product has gained customer approval. These products are sure to bring blessings to the protection of the human living environment.

Section II: Characteristics of Submerged Integrated Sewage Treatment Equipment

1. Suitable for burial below ground level, with the upper part of the equipment suitable for planting flowers, trees, and lawns, or can be installed indoors.

2. Environmentally friendly, with minimal sludge generation and noise levels below the standards of Class II areas.

3. Fully automatic control, no need for professional personnel management.

4. Easy to operate, convenient for maintenance, innovative technology, great results, and long service life.

5. Equipment can be arranged according to standard layouts or customized to fit the terrain's requirements.

Section 3: Application Range of Submerged Integrated Wastewater Treatment Equipment

1. Flow Rate Handling: Standard model ranges from 1.0 to 80.0 (m³/h); for flow rates exceeding 80.0 (m³/h), a custom design is required.

2. Raw Water Concentration: BOD5: Standard Type ≤250mg/L, Enhanced Type ≤400mg/L; additional design required for concentrations above 400 mg/L.

3. The equipment is primarily suitable for residential areas, hotels, docks, airports, shopping malls, sanatoriums, schools, factories, and mines, for treating domestic wastewater and similar industrial effluents.

Section 4: Material Selection for Submerged Integrated Sewage Treatment Equipment

1. Full 304 stainless steel construction

2. A3 steel plate structure

3. (Q235) Steel plate, fiberglass reinforced plastic (FRP) composite structure

4. fiberglass (FRP) round

5. Reinforced concrete structure