Water treatment can be divided into domestic sewage treatment and industrial sewage treatment. What is the difference between the two? Below, the editor will take you to understand the differences between industrial wastewater treatment and domestic wastewater treatment.

Domestic sewage treatment plants are commonly referred to as urban sewage treatment plants or urban sewage treatment plants, and are referred to as "centralized treatment sites for urban and rural sewage" in the Environmental Protection Tax Law and the Implementation Regulations of the Environmental Protection Tax Law. They refer to places that provide domestic sewage treatment services to the public, excluding places that provide sewage treatment services to enterprises, institutions, and other producers and operators in industrial clusters such as industrial parks and development zones, as well as sewage treatment sites built and used by enterprises, institutions, and other producers and operators themselves. The main function of urban and rural sewage centralized treatment facilities (hereinafter referred to as domestic sewage treatment plants) should be to provide domestic sewage treatment services to the public.

Industrial sewage treatment plants, in accordance with the Environmental Protection Tax Law and the Implementation Regulations of the Environmental Protection Tax Law, refer to places that provide sewage treatment services to enterprises, institutions, and other producers and operators in industrial clusters such as industrial parks and development zones.

Another commonly used concept is "sewage treatment station", which generally refers to sewage treatment facilities built and used by enterprises, institutions, and other producers and operators. The reason for constructing a sewage treatment plant is that the production wastewater of enterprises needs to be pre treated to meet the corresponding industry or national standards, and meet the water connection requirements of the municipal pipeline network before it can enter the sewage treatment plant.

The difference between domestic sewage treatment and industrial sewage treatment

1. Different properties

Domestic sewage treatment: It mainly treats the daily domestic sewage of the public. The construction and development of domestic sewage treatment plants are important guarantees for urbanization development and important support for achieving urban ecological development.

Industrial wastewater treatment: It mainly treats production wastewater from factories and other enterprises and institutions. The construction and development of industrial wastewater treatment plants are important guarantees for the development of industrial parks and industrial clusters, and important support for achieving the ecological development of industrial parks.

2. Different processes

Domestic sewage treatment: Domestic sewage treatment mainly targets the biochemical part, that is, the biochemical treatment process, including conventional activated sludge treatment process, anaerobic anoxic aerobic method (A) ² O) Anaerobic anaerobic (A/O), sequencing batch reactor (SBR).

Industrial wastewater treatment: Industrial wastewater treatment mainly targets chemicals that seriously affect the environment, as well as the discharged waste liquid, for comprehensive filtration. Compared to domestic sewage, industrial sewage has a more complex composition, a higher degree of pollution, and a higher difficulty in treatment.

Industrial wastewater treatment corresponds to different types of industries, and the pollutants contained in industrial wastewater generated by different processes in different industries vary greatly, and the cleaning treatment also varies. Compared to the similar treatment process for domestic sewage, industrial sewage treatment has its own characteristics. It is impossible to treat all industrial sewage with just one treatment process, which is the essential difference from domestic sewage treatment.

There is still a significant difference between industrial wastewater treatment and domestic wastewater treatment, which may involve the same methods, but more importantly, there are different plans and technologies. In short, treatment needs to be distinguished. If the same standards and treatment processes are used, industrial wastewater will definitely not meet the treatment requirements, discharge standards or reuse requirements.

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