Bipolar plate wastewater treatment and discharge device

Abstract

The invention relates to a bipolar plate wastewater treatment and discharge device. The bipolar plate wastewater treatment and discharge device comprises a wastewater tank, a water collecting tank, a nanofiltration membrane concentration device and a flocculent precipitation water outlet device, and the wastewater tank is connected with the nanofiltration membrane concentration device; the nanofiltration membrane concentration device comprises a nanofiltration membrane unit and a nanofiltration intermediate tank, a concentrated water outlet end and a clear water collecting and recycling end are arranged on the nanofiltration membrane unit, the concentrated water outlet end is connected with the water collecting tank, and the clear water collecting and recycling end is connected with a water inlet end of the nanofiltration intermediate tank; and the flocculent precipitation water outlet device comprises a flocculent precipitation treatment device capable of realizing flocculent precipitation and pH adjustment, a sludge concentration tank, a screw pump and a filter press, the flocculent precipitation treatment device is provided with a sludge pipeline for discharging sludge, the sludge pipeline is connected with the inlet end of the sludge concentration tank, and the sludge concentration tank is connected with the inlet end of the filter press through the screw pump. The device has the advantages that the amount of wastewater to be treated is reduced, and on the other hand, filtered clear water can be reused, so that the wastewater treatment efficiency is further improved.

Description

technical field [0001] The invention relates to a bipolar plate wastewater treatment and discharge device. Background technique [0002] In the production process of the factory, a lot of waste water will be produced. If it is discharged directly, it will pollute the environment. Therefore, a special sewage treatment system is generally set up now to treat the pollutants in the sewage, so that the waste water can be used without pollution. However, in the existing sewage treatment technology, there is a lack of wastewater treatment devices that can handle a large amount of sewage and make it meet the discharge standard; [0003] At present, the bipolar plate wastewater treatment method is widely used in the market, but the general bipolar plate wastewater treatment method only has one-level treatment, and the treated wastewater cannot be recycled and reused. It does not have nanofiltration membrane concentration treatment and filtration. The function of reuse of clear water...

AI Technical Summary

Problems solved by technology

[0002] In the production process of the factory, a lot of waste water will be produced. If it is discharged directly, it will pollute the environment. Therefore, a special sewage treatment system is generally set up now to treat the pollutants in the sewage, so that the waste water can be used without pollution. However, in the existing sewage treatment technology, there is a lack of wastewater treatment devices that can handle a large amount of sewage and make it meet the discharge standard;

[0003] At present, the bipolar plate wastewater treatment method is widely used in the market, but the general bipolar plate wastewater treatment method only has one-level treatment, and the treated wastewater cannot be recycled and reused. It does not have nanofiltration membrane concentration treatment and filtration. The function of reuse of clear water is a waste of water resources, and the regulation of pH value in wastewater and the application of flocculation and sedimentation methods are relatively lacking, which reduces the efficiency and quality of wastewater treatment

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