Microorganisms in rural integrated sewage treatment equipment adhere to the filter media, which are purified before being discharged outside the pond. Common filter media can be categorized into several types.

1. The hollow block filter media is cylindrical or spherical in shape, featuring pores of various shapes and sizes within. It boasts a significantly higher specific surface area and porosity compared to solid block filter media, which can enhance the biomass concentration and corresponding treatment capacity within medium to large-scale wastewater treatment equipment, while reducing the clogging of the filter layer. This type of filter media is commonly made of plastic.

2. In wastewater treatment equipment for industrial purposes, the low biomass concentration limits the organic load. Rural integrated wastewater treatment equipment is prone to localized filter layer clogging and subsequent short-circuiting during operation, which affects the performance of the system.

3. Composed of corrugated or honeycomb pipes with varying inclinations, typically at 60° angles. As water flows through the filtration layer, it takes a crisscross pattern, with a specific surface area and porosity similar to that of tubular filter media.

4. Tubular filter media can form pipeline water flow, with a specific surface area of 100-200 m2/m3 and a porosity of 80%-90%, which is about 2-5 times and 1.5 times respectively higher than that of solid block filter media. Using such filter media allows for a higher biomass concentration and is less prone to clogging during operation.

Key Application Technologies of Integrated Rural Wastewater Treatment Equipment.

Our Composite Biofilter Reactor, featuring a unique composite structure design and filter media, overcomes the drawbacks of traditional biofilters, such as clogging issues, while significantly enhancing the reactor's processing efficiency and stability. It boasts excellent treatment performance, high processing efficiency, simple structure, low construction costs, space-saving design, low energy consumption, easy operation and management, and low operational expenses.

Additionally, during the design of the equipment, the high-load artificial wetland technology was adopted: Through the selection of high-quality fillers and optimized structure, the hydraulic load of the artificial wetland was significantly increased. Wastewater enters the artificial wetland and is effectively removed of organic matter, nitrogen, and phosphorus through the filler-soil-plant system under the combined action of physical, chemical, and biological processes. The process is simple, and maintenance is convenient.

3. Another technology is the composite anaerobic technology: It utilizes the physiological and ecological characteristics of various anaerobic microorganisms, which depend on and coordinate with each other to form a microecosystem that achieves harmless treatment of pollutants in domestic wastewater. Rational anaerobic pond structure, wastewater recirculation ratio, and high-quality media enhance the system's microbial retention capacity, ensuring good hydraulic mixing conditions, thereby endowing the composite anaerobic pond with wastewater treatment capabilities.