Tonglida Brief Analysis on How to Recycle the Domestic Sewage of the Factory?

 China started late in the treatment and reuse of domestic sewage in factories. However, with the increasing shortage of urban water resources, the problem of reuse has begun to attract attention, and many cities have put domestic sewage treatment on the agenda.

Many coastal cities in southern China have sufficient water resources, but their water reuse technology will be relatively backward. They should conduct water treatment and reuse in advance to achieve sustainable use of water. In northern cities, if water shortage is more obvious, sewage treatment and reuse must be further improved to solve the problem of water use.

 The reuse of domestic sewage mainly focuses on landscape water, flushing and greening. Generally speaking, the treatment process of domestic sewage is as follows: the biofilm method is generally used for low concentration sewage with low water volume, stable water quality and low concentration. The biofilm culture speed is fast (generally 3-7). Summer, winter). 10-15 days), the system is stable after operation, with strong operability and low requirements for operators. The activated sludge method is usually used when the water quantity is large, the water quality has a certain fluctuation, and the concentration is medium or high. At the same time, due to the long incubation time of water quality activated sludge (usually about 30 days), the operation and management of the system are also complex, which requires certain operators, and is suitable for large and medium-sized sewage treatment projects, such as urban sewage treatment plants.

Generally, biological membrane process is used for biochemical treatment process (anoxic+aerobic). The subsequent treatment after biofilm treatment usually goes deep, mainly to remove the residual suspended solids and disinfect the water.

The main characteristics of the above process for recycling domestic wastewater are that advanced, reliable and mature wastewater treatment technology is adopted; Scientific and reasonable design; After selecting equipment and materials with excellent performance, the whole sewage treatment plant can maintain efficient, stable and reliable operation.