Wastewater treatment system

Abstract

The invention provides a wastewater treatment system. The wastewater treatment system is characterized by comprising a primary grating, a secondary grating, a fiber rotating disc filter tank, an acid-base balance tank, a three-stage internal aeration membrane device, a secondary sedimentation tank and a disinfection and monitoring tank which are connected through pipelines sequentially, wherein asludge return pipe is arranged between a sludge outlet of the secondary sedimentation tank and a sewage inlet of the acid-base balance tank; a reflux pump is mounted at the sludge outlet of the secondary sedimentation tank; a sludge outlet of the acid-base balance tank and a floating slag outlet of the secondary sedimentation tank are connected to a sludge concentration tank which is connected with a dewaterer; grid bar clearance of the primary grating is larger than that of the secondary grating. The industrial wastewater treatment system which is simple in structure, good in sewage treatmenteffect and high in efficiency is provided.

Description

technical field [0001] The invention relates to a water treatment technology, in particular to a waste water treatment system. Background technique [0002] With the rapid development of modern industry, the types of industrial wastewater produced by various enterprises in the production process are also different. Due to the increase in consumer demand, the production volume of enterprises has continued to increase, so the amount of industrial wastewater produced has also continued to increase. If the industrial wastewater is not further treated, it will not only cause serious pollution to the environment, but also threaten human health and safety. Since industrial wastewater is mainly composed of hydrocarbons, nitrogen and phosphorus nutrients are insufficient, and the biochemical properties are poor, some metal ions and some refractory substances have strong poisonous and inhibitory effects on microorganisms. There are also various organic and inorganic chemical polluta...

AI Technical Summary

Problems solved by technology

If the industrial wastewater is not further treated, it will not only cause serious pollution to the environment, but also threaten human health and safety.

Since industrial wastewater is mainly composed of hydrocarbons, nitrogen and phosphorus nutrients are insufficient, and biochemical properties are poor, some metal ions and some refractory substances have strong poisonous and inhibitory effects on microorganisms

There are also various organic and inorganic chemical pollutants and a small amount of dirty oil, high salinity, high suspended solids, high COD and ammonia nitrogen, which are basically wastewater that is difficult to biodegrade, so the industrial wastewater treatment process is relatively complicated.

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