With the development of rural economy and population growth, the problem of rural water pollution is becoming increasingly serious. As a new type of water treatment technology, the small rural sewage treatment and purification tank has the characteristics of low investment, low operating cost and convenient maintenance, and has been widely welcomed. This article will introduce the principle, type, advantages and application of small rural sewage treatment and purification tanks.
First, the principle
The principle of the small rural sewage treatment purification tank is to use biofilm treatment technology to convert the organic matter in the sewage into harmless substances through the action of microorganisms, and at the same time remove pollutants such as ammonia nitrogen and phosphorus in the sewage. The inside of the purification tank is provided with biological filler, and microorganisms form a biofilm on the surface of the filler, and when the sewage passes through the biofilm, the pollutants are adsorbed and transformed by microorganisms, and finally the purification effect is realized.
Second, the type
The types of small rural sewage treatment and purification tanks are mainly divided into two categories: split type and integrated type. The split purification tank is set up separately from the bioreactor and the sedimentation tank, and the sewage enters the bioreactor for treatment through the pipeline, and then enters the sedimentation tank for slurry separation. The integrated purification tank is to combine the bioreactor and the sedimentation tank in one tank, which has a good treatment effect, but is relatively inconvenient to maintain.
3. Advantages
1.Low investment: The small rural sewage treatment and purification tank has a simple structure, compact equipment and a small footprint, which can effectively reduce the investment cost.
2.Low operating cost: The purification tank adopts natural ventilation for oxygen supply, which does not require additional power during operation, and the operating cost is low.
3.Easy maintenance: The purification tank adopts a modular design, which is easy to install and disassemble, and convenient for daily maintenance.
4.Good treatment effect: The purification tank can effectively remove organic matter, ammonia nitrogen, phosphorus and other pollutants in the sewage, and meet the national discharge standards.
Fourth, the application
The small rural sewage treatment purification tank is suitable for treating rural domestic sewage and aquaculture wastewater. In terms of domestic sewage treatment, the purification tank can effectively remove pollutants such as feces and detergents, and improve the environmental sanitation of rural water. In the treatment of aquaculture wastewater, the purification tank can reduce the content of organic matter, ammonia nitrogen, phosphorus and other pollutants in the wastewater, and reduce the pressure on the surrounding environment.
At present, the application of small rural sewage treatment and purification tanks in China is still in its infancy, but with the increasingly serious problem of rural water pollution and the improvement of environmental awareness, its application prospects are very broad. In the future, it is necessary to further strengthen the research and development and promotion and application of technology, improve the treatment effect and stability of the purification tank, and provide more effective technical support for the protection of the rural water environment.
V. Conclusions
As a new type of water treatment technology, small rural sewage treatment and purification tank has the characteristics of low investment, low operating cost and convenient maintenance, which can effectively solve the problem of rural water pollution. In the future, it is necessary to strengthen the research and development and promotion and application of technology, improve the treatment effect and stability of the purification tank, and provide more effective technical support for the protection of the rural water environment. At the same time, it is necessary to strengthen publicity and education, improve the environmental awareness and participation of rural residents, and jointly promote the improvement of rural water environment.