With economic and population growth, environmental pollution has become a global concern. Drawing on years of experience in domestic and international wastewater treatment, our company has developed an innovative underground integrated sewage treatment system – the SPR Series. Manufactured primarily from fiberglass and stainless steel using cutting-edge technologies from the late 1990s, this system effectively treats domestic sewage and similar industrial organic wastewater to meet strict discharge standards.

一、Overview

With economic and population growth, environmental pollution has become a global concern. Drawing on years of experience in domestic and international wastewater treatment, our company has developed an innovative underground integrated sewage treatment system – the SPR Series. Manufactured primarily from fiberglass and stainless steel using cutting-edge technologies from the late 1990s, this system effectively treats domestic sewage and similar industrial organic wastewater to meet strict discharge standards.

Designed for buried installation, the system is ideal for residential communities (including villa complexes), hotels, hospitals, office buildings, and public facilities. Its modular design ensures treated water meets national discharge criteria while minimizing surface footprint. The system features advanced biological treatment processes to remove BOD5, COD, and NH3-N efficiently, with benefits including stable performance, low investment, small footprint, and easy maintenance. Optional reclaimed water reuse modules are available upon request.

二、Product Features

1. Buried Installation: Installed below ground level, the system allows the surface area to be used for green spaces or other purposes, eliminating the need for dedicated buildings, heating, or insulation.
2. Advanced Oxidation Process: Utilizes a plug-flow biological contact oxidation process, outperforming conventional fully mixed or two-stage oxidation tanks. Features a compact design, strong adaptability to varying water quality, high shock resistance, stable effluent quality, and no sludge bulking. The system uses a new type of elastic three-dimensional filler with a large specific surface area, promoting efficient microbial attachment and detachment for superior organic matter removal and oxygen solubility.
3. Low Sludge Production: The biochemical tank operates at a low filler volume load, keeping microorganisms in self-oxidation stage with minimal sludge production. Sludge discharge is required only once every three months (90 days), typically via vacuum truck or dewatering into cake for 外运.
4. Comprehensive Deodorization: Combines conventional high-altitude exhaust with soil deodorization technology to minimize odors.
5. Fully Automated Control: Equipped with an intelligent electrical control system and fault alarm, ensuring safe and reliable operation with minimal manual intervention. Routine maintenance is straightforward and requires only periodic checks.

三、Usage

• Effective Treatment: Capable of processing comprehensive wastewater from domestic systems and similar organic effluents.
• Durable Construction: Constructed from corrosion-resistant fiberglass or stainless steel, ensuring a service life of over 50 years.
• Easy Installation & Operation: Simple to install, fully automated, and can be entirely buried underground, requiring minimal surface infrastructure.

四、Applications

1. Hotels, restaurants, sanatoriums, hospitals
2. Residential communities, villages, towns
3. Transport hubs (stations, airports, seaports), ships
4. Industrial facilities, mines, military bases, tourist attractions, scenic areas
5. Industrial organic wastewater similar to domestic sewage