With the gradual acceleration of China's economic construction, the country is paying more attention to the treatment of dispersed domestic sewage, and more and more places have built sewage treatment plants, but there are still many problems.
1、Difficult to collect: The pollution sources are too scattered, and the pipeline network construction is not perfect;
2、High cost: High one-time construction cost and high operating energy consumption;
3、Lack of professional management and operators makes the facilities difficult to operate.

Ultimately, it led to the construction of processing facilities being affordable, can't afford to use The situation is that untreated domestic sewage is discharged indiscriminately, seriously polluting the ecological environment of various regions and directly threatening the physical health of the general public and the economic development of the region. In response to the problem of dispersed domestic sewage, our environmental protection team has developed equipment based and intelligent sewage treatment products suitable for dispersed domestic sewage treatment, which can be widely used in industrial parks, highway service areas, breeding plants, hospitals, and rural households Music, scenic areas, residential areas, etc.

Process Flow Diagram

1、Process Description

Wastewater is lifted to the pre denitrification tank through self flow or submersible sewage pumps to remove nitrate nitrogen from the reflux sludge, allowing phosphorus accumulating bacteria to release phosphorus more thoroughly in the anaerobic stage, thereby improving the removal capacity of nitrogen, phosphorus, and organic matter. In the biochemical zone, it undergoes mass transfer, aeration, sedimentation, and settling stages, and under anaerobic anaerobic aerobic alternating operation, it can simultaneously remove organic matter, nitrogen, and phosphorus. At the same time, modified MBBR suspension filler is added in the aerobic zone, The enzyme promoting component specifically designed for the growth of nitrifying bacteria has efficient organic matter removal ability, and is finally discharged after precipitation and UV disinfection to meet standards.

2、Technical Principles

Compared with existing technologies, the AAAO process improves the treatment efficiency of nitrogen and phosphorus in wastewater by setting up sludge reflux mechanisms, nitrification liquid reflux mechanisms, and anaerobic liquid reflux mechanisms, as well as filling suspended fillers in aerobic tanks. Furthermore, energy-saving reflux design is adopted to further enhance the denitrification and phosphorus removal effect of the treatment system, which has the characteristics of intensive structure and stable operation.

3、Technical advantages

Good denitrification and phosphorus removal effect - ammonia nitrogen removal rate ≥ 98%, total phosphorus removal rate ≥ 96%.
Low operating cost - energy consumption of 0.3-0.5 kW • h/m3.
Compact structure and small footprint -1.0m2/m3 of sewage (including ancillary structures).
Unique process design - A3/O-MBBR process.
Easy to maintain - no need for dedicated personnel to be on duty.

Design inlet and outlet water quality

Equipment appearance