High nitrogen high concentration organic wastewater purification system

Abstract

The invention discloses a high nitrogen high concentration organic wastewater purification system. The high nitrogen high concentration organic wastewater purification system comprises a catalytic oxidation pool, an oxidation stabilizing pool, an after-biochemistry BAF pool, a clear water pool, a water collecting pool and a filter, and the catalytic oxidation pool is filled with ozone catalyzing particles in a fixed bed mode, and the ozone catalyzing particles are prepared from, by weight, activated aluminum oxide particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol; the after-biochemistry BAF pool further comprises an anaerobic pool and an aerobic pool, and a carrier is prepared from, by weight, 60-70 parts of high density polyethylene, 10-15 parts of polypropylene resin, 6-8 parts of low density polyethylene, 8-10 parts of bamboo charcoal powder, 4-6 parts of wood powder, 2-3 parts of lignin, 2-3 parts of dichloromethane, 1-2 parts of N,N-diethylguanidine, 0.5-1 part of N,N'-ethylenebis (stearamide) and 3-5 parts of maleic anhydride. The high-nitrogen high-concentration organic wastewater purification system is low in running cost, easy to operateand stable to run and achieves the purpose of efficiently degrading organic pollutants.

Description

technical field [0001] The invention relates to a purification system for high-nitrogen and high-concentration organic wastewater, which belongs to the technical field of organic wastewater. Background technique [0002] Most coal gasification plants in China adopt the Lurgi gas production process. The waste water pollutants produced by this process have a high concentration and complex organic components, mainly including phenolic compounds, polycyclic aromatic compounds, and heterocyclic compounds containing nitrogen, oxygen, and sulfur. Compounds and fatty compounds are highly toxic and difficult to biodegrade. If the coal-to-gas wastewater is not properly treated and discharged beyond the standard, it will cause serious pollution to the ecological environment. Therefore, how to effectively treat the coal-to-gas wastewater and achieve wastewater discharge standards has become an international problem. [0003] At present, high concentrations of ammonia nitrogen and pheno...

AI Technical Summary

Problems solved by technology

At present, most of the research on coal gasification wastewater treatment technology stays in the small-scale experimental stage. Most scholars are only conducting research on the application of a single technology, and there are few studies on the coupling process of physicochemical treatment and biochemical treatment.

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