DMAC (dimethylacetamide) containing high-concentration organic wastewater pretreatment device

Abstract

The invention particularly relates to a DMAC (dimethylacetamide) containing high-concentration organic wastewater pretreatment device, which comprises an acid preparation region, a degradation agent chemical adding region, a degradation reaction region, an alkaline regulating region and a discharging region, wherein the acid preparation region comprises a preparation pool and a chemical distribution pipe; the chemical distribution pipe is positioned in the preparation pool and is used for adding acid liquid for reducing the pH value of wastewater; the degradation agent chemical adding region comprises a mixing pool, a pH detecting meter and a chemical distribution pipe, the pH detecting meter is positioned in the mixing pool; the chemical distribution pipe is positioned in the mixing pooland is used for adding degradation agents; the degradation reaction region comprises a reaction pool and an aeration system which is positioned at the bottom of the inner side of the reaction pool; the alkaline regulating region comprises a middle pool and a chemical distribution pipe which is positioned in the middle pool and is used for adding alkali liquid for increasing the pH value of wastewater; the discharging region comprises a discharging pool and another pH detecting meter positioned in the discharging pool. The acid preparation region, the degradation agent chemical adding region, the degradation reaction region, the alkaline regulating region and the discharging region are in sequential arrangement. The high-concentration organic wastewater pretreatment device has the advantages that the operation is simple; the practicability is high; the treatment effect is good; the high-concentration organic wastewater pretreatment device is particularly applicable to DMAC containing high-concentration organic wastewater pretreatment.

Description

technical field [0001] The invention belongs to the field of environmental protection equipment and relates to a high-concentration organic wastewater treatment system, in particular to a high-concentration organic wastewater pretreatment device containing DMAC. Background technique [0002] DMAC (dimethylacetamide) is an excellent organic solvent, which is currently widely used in polymer synthetic fiber spinning and other organic synthesis industries (such as medicine, pesticides, film industry, leather industry, etc.), while using High concentration organic wastewater containing DMAC. Since DMAC is a bacteriostatic agent, it will inhibit or even kill the activated sludge which is the core of the sewage treatment process at high concentrations, so it is difficult to treat high-concentration organic wastewater containing DMAC by biochemical treatment. In addition, the existing high-concentration organic wastewater pretreatment technologies mainly include Fenton method, rec...

AI Technical Summary

Problems solved by technology

Since DMAC is a bacteriostatic agent, it will inhibit or even kill the activated sludge as the core of the sewage treatment process at high concentrations, so it is difficult to treat high-concentration organic wastewater containing DMAC by biochemical treatment.

In addition, the existing high-concentration organic wastewater pretreatment technologies mainly include the Fenton method, rectification, etc., and their disadvantages are that the process is complex and cumbersome, and the cost is high, and it will cause secondary pollution

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