Pretreatment device for high-concentration organophosphorus wastewater

Abstract

The invention discloses a pretreatment device for high-concentration organophosphorus wastewater, belonging to the technical field of sewage treatment. The pretreatment device comprises a first treatment tank, a screening assembly, a cleaning assembly, a second treatment tank, an electrocatalytic oxidation device, a third treatment tank, a dumping assembly, a stirring assembly, a biochemical reaction tank and three water pumps, wherein the first treatment tank, the second treatment tank and the third treatment tank are all vertically arranged on a horizontal plane; the screening assembly is arranged in the first treatment tank; the cleaning assembly is arranged in the first treatment tank; the electrocatalytic oxidation device is arranged in the second treatment tank; the dumping assembly is arranged in the third treatment tank; the stirring assembly is arranged in the third treatment tank; and the biochemical reaction tank is horizontally arranged on the horizontal plane. According to the device, impurities in wastewater are screened and cleaned through the screening assembly and the cleaning assembly before the wastewater is treated, so influence on subsequent dephosphorization operation is avoided, and dephosphorization operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a pretreatment device for high-concentration organic phosphorus wastewater. Background technique [0002] At present, there are more than 10,000 kinds of organophosphorus compounds produced in the world. Due to the expanded production and wide use of organophosphorus chemicals, the production process produces a large amount of high-concentration toxic organic wastewater, causing heavy pollution and causing great harm to the environment. Therefore, the effective treatment of such wastewater is imminent. Phosphorus-containing wastewater with a concentration greater than 100 mg / L is called high-concentration phosphorus-containing wastewater. The pretreatment of high-concentration organic phosphorus wastewater mostly uses physical and chemical processes. Among them, chemical methods include Fenton oxidation, electrocatalytic oxidation, etc., physical methods Including adsor...

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Problems solved by technology

[0004] The embodiment of the present invention provides a pretreatment device for high-concentration organic phosphorus wastewater to solve the problem that the impurities in the wastewater cannot be filtered during the preliminary treatment of the wastewater, and the impurities in the wastewater cannot be cleaned after filtering the impurities in the wastewater Operation, the technical problem of not being able to automatically put chemicals into the wastewater when chemically dephosphorizing the wastewater

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