Multi-stage industrial wastewater treatment tank

Abstract

The invention belongs to the field of wastewater treatment, and particularly relates to a multi-stage industrial wastewater treatment tank, the multi-stage industrial wastewater treatment tank comprises a primary treatment tank, a secondary treatment tank, a tertiary treatment tank, valves, water inlet pipes and a drainage pipe, wherein the multi-stage industrial wastewater treatment tank furthercomprises filtration layers, cleaning tanks, nozzles, water conveying pipes, and filling layers. The multi-stage industrial wastewater treatment tank is provided with the plurality of treatment tanksarranged in a gradient, and the water inlet pipes of the treatment tanks are provided with the filtration layers of different pore sizes, so that when all the wastewater in the treatment tanks enter alower treatment tank, different sizes of solid materials can be filtered out, the treatment tanks are provided with the plurality of nozzles, the mesh filling layers covering the spray ranges of thenozzles are arranged under the nozzles, various reactants or adsorbents can be filled in the filling layers, the contact areas of the wastewater and the reactants can be greatly improved, the drawbacks of the wastewater treatment of the wastewater treatment tank in the prior art can be effectively solved, and the level of wastewater treatment can be improved.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to a multi-stage industrial waste water treatment pool. Background technique [0002] With the development of my country's industry, the discharge of industrial wastewater is increasing day by day. After the industrial wastewater that does not meet the discharge standards is discharged into the water body, it will pollute the surface water and groundwater. Once a water body is polluted, it is difficult to restore it to its original state in a short period of time. After the water body is polluted, not only will the water quality fail to meet the standards of drinking water and fishery water, but it will also increase the chemical harmful substances and hardness in the groundwater, which will affect the utilization of groundwater. [0003] There are many kinds of industrial wastewater treatment technologies, but the most economical and applicable one is to use the wastewater tre...

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Problems solved by technology

[0005] Although the above-mentioned invention has a positive effect on the treatment of waste water to a certain extent, when treating waste water, it is difficult to filter it at one time because the solid matter in the waste water is of different sizes; Insufficient contact with the agent; and the treatment tank has a certain height, and the wastewater in the treatment tank cannot be completely treated

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