Treatment device for high-ammonia-nitrogen wastewater containing organic solvent

Abstract

The invention discloses a treatment device for high-ammonia-nitrogen wastewater containing an organic solvent. The treatment device comprises a wastewater deamination treatment unit, wherein the wastewater deamination treatment unit comprises at least one deamination membrane module, as well asa water distribution pipe, a water collecting pipe and a plurality of hollow fiber membrane filaments, which are mounted in a casing; one end of each hollow fiber membrane filament is connected with the water distribution pipe, and an opposite end is connected with the water collecting pipe to form a membrane filament array; the membrane filament arrayis sleeved witha flow guide baffle plate; and the casing, the water distribution pipe, the water collecting pipe, the hollow fiber membrane filaments and the flow guide baffle plate are made of a polypropylene material. The treatment device provided by the invention has corrosion resistance, and tolerance to the organic solvent, and can carry out deamination treatment on the high-ammonia-nitrogen wastewater containing the organic solvent, so that the application range is enlarged..

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a treatment device for high ammonia nitrogen waste water containing organic solvents. Background technique [0002] With the development of the economy and the improvement of living standards, ammonia nitrogen has now become one of the main pollution indicators of the environment. Ammonia nitrogen wastewater mainly comes from chemical fertilizers, coking, petrochemicals, pharmaceuticals, landfills, etc. A large amount of ammonia nitrogen wastewater discharges into the water body not only causes eutrophication of the water body, but also causes the water body to be black and smelly, not only the difficulty and cost of water treatment, but even the human and biological produce toxic effects. [0003] The ammonia nitrogen removal methods currently used include break point chlorination, chemical precipitation, air stripping, biological denitrification, membrane separat...

AI Technical Summary

Problems solved by technology

In the breakpoint chlorination method, there are likely to be problems of safety and secondary pollution; the cost of the precipitant used in the chemical precipitation method is relatively high, and it is difficult to control the optimal precipitation conditions; the air stripping method is likely to cause secondary pollution; biological denitrification The growth of nitrifying bacteria in the method is greatly affected by temperature, alkalinity, and dissolved oxygen. In addition, high-concentration ammonia nitrogen wastewater will inhibit the growth of nitrifying bacteria, resulting in low efficiency of the nitrification process and weak impact resistance of the biological system.

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