1, improve water quality. After the sewage treatment equipment for domestic sewage treatment, so that the degree of water pollution has decreased significantly, whether it is discharged or reuse, can meet the standards.
2, improve the ecological environment. Untreated sewage discharged into the river will not only pollute the environment, the quality of water for people's life will also have a negative impact.
3, promote the water circulation system. The natural cycle of water is a non-equilibrium open system with an organizational structure, and the social cycle of water is a balanced system with an artificial organizational structure.
Expanded Information:
Methods of Sewage Treatment:
1, Physical Methods: Mainly use the physical effect of separation of sewage in the non-soluble Substances, in the treatment process does not change the chemical nature.
2, biological method: the use of microbial metabolism, the sewage is dissolved or colloidal organic decomposition and oxidation of stable inorganic substances, so that the sewage is purified.
3, chemical method: is the use of chemical reactions to treat or recover sewage dissolved substances or colloidal substances, mostly used in industrial wastewater. Chemical treatment method is good, high cost, mostly used as a biochemical treatment of the effluent, for further treatment to improve the quality of the effluent.
Baidu Encyclopedia - Wastewater Treatment