Introduction to Rural Domestic Sewage Treatment Equipment for New Countryside Construction

In China’s 12th Five-Year Plan, promoting agricultural modernization and accelerating the construction of a new socialist countryside were identified as key tasks for the country’s economic development during that period. Advancing the comprehensive improvement of the rural environment is also a crucial task in building a new socialist countryside. In response to the characteristics of rural sewage—such as scattered discharge points and relatively low management levels—Shandong Haipou Environmental Protection Equipment Co., Ltd. has developed a set of rural domestic sewage treatment equipment for new countryside construction. On this basis, we also provide corresponding treatment facilities for other related rural infrastructure to ensure the effectiveness of sewage treatment.

Sewage Sources of the Rural Domestic Sewage Treatment Equipment System for New Countryside Construction

Sewage generated in the course of human daily life is one of the main sources of water pollution. It mainly consists of fecal sewage and washing wastewater. The daily domestic sewage discharge per person in cities ranges from 150 to 400 liters, and the volume is closely related to the standard of living. Domestic sewage contains a large amount of organic substances, such as cellulose, starch, sugars, fats, and proteins; it also often contains pathogenic bacteria, viruses, and parasite eggs, as well as inorganic salts like chlorides, sulfates, phosphates, bicarbonates, and elements such as sodium, potassium, calcium, and magnesium. A general characteristic of domestic sewage is its high content of nitrogen, sulfur, and phosphorus, which tends to produce malodorous substances under the action of anaerobic bacteria.

Characteristics of the Rural Domestic Sewage Treatment Equipment for New Countryside Construction

1. High removal efficiency of pollution indicators: The BOD (Biochemical Oxygen Demand) removal rate ranges from 84% to 91%, and all effluent indicators meet national discharge standards.
2. Large filler area: It facilitates the attachment of microorganisms, enhances the removal of organic substances, and ensures stable and reliable effluent quality.
3. Mature technology: It generates a small amount of sludge, exhibits good resistance to shock loads, and ensures stable and reliable system operation. Post-operation management is simple, and the system status can be adjusted at any time according to actual conditions to achieve optimal effluent performance.
4. Compact size and light weight: The equipment is easy to transport and install.

Treatment Process of the Rural Domestic Sewage Treatment Equipment for New Countryside Construction

Domestic sewage is characterized by high content of organic substances (e.g., starch, protein, oil), inorganic substances (e.g., nitrogen, phosphorus), human hair, as well as pathogenic microorganisms and a large amount of suspended solids. Combining the water quality characteristics of rural domestic sewage in new countryside areas and relevant project cases, our company has summarized the main treatment process for such sewage. The core treatment method adopts the currently mature biochemical treatment technology—contact oxidation process. The water quality parameters are designed based on general domestic sewage standards: influent BOD is 200 mg/L, and effluent BOD is 10 mg/L. The system consists of six main parts:(1) Primary sedimentation tank;(2) Contact oxidation tank;(3) Secondary sedimentation tank;(4) Disinfection tank and disinfection device;(5) Sludge tank;(6) Fan room and fans.

After-Sales Service of the Rural Domestic Sewage Treatment Equipment System for New Countryside Construction

1. The equipment enjoys a 12-month free warranty period after completion. All after-sales services provided within the free warranty period are free of charge.
2. Free training will be provided for equipment management and operation personnel, and lifelong technical support is available. Our after-sales staff will conduct irregular return visits to answer customers’ questions and solve their difficulties.
3. An emergency response plan will be provided within 4 hours of receiving a repair request, and maintenance personnel will arrive at the site within 72 hours.
4. Lifelong supply of equipment spare parts is guaranteed.