1, aerobic biological treatment system
Aerobic biological treatment system is the most common solution technology in sewage treatment in beautiful countryside. Aerobic biological process is that microorganisms use organic pollutants in water as substrates for aerobic metabolism, and after a series of biochemical reactions, they gradually release energy, and finally stabilize with low-energy inorganic substances to achieve the requirement of harmlessness, so as to return to the natural environment or further treatment.
2. Stabilization pond treatment technology
In our country, especially in the arid climate, stabilizing pond is an effective way to realize sewage resource utilization and has become a technology vigorously promoted in China in recent years. Compared with the traditional secondary biological treatment technology, the high-efficiency algae pond has many unique characteristics, and it is a more valuable sewage treatment technology for rural areas with relatively rich land resources but relatively backward technical level.
3. Constructed wetland solution technology
After the rural domestic sewage is treated by septic tank, the supernatant enters the intake well through the water collection pipeline and is injected into the grit chamber through the grid. The precipitated supernatant is pumped into the first-stage constructed wetland and then into the second-stage constructed wetland. The effluent from the secondary constructed wetland flows back to the clear water pool, which can be used for landscaping and irrigation, and can also overflow to the surrounding ditches.
4.MBR process technology
Membrane bioreactor (MBR) is a high-tech developed at the end of 20th century. It is a combination of membrane separation technology and activated sludge biotechnology. Its efficient solid-liquid separation means that the effluent quality is good, the suspended matter and turbidity are close to zero, and the daily domestic sewage can be reused immediately after treatment.
The above is the technical introduction of integrated rural sewage treatment equipment.