Efficient low-consumption ammonia nitrogen removal comprehensive water treatment device for coal chemical industry waste water

Abstract

The invention discloses an efficient low-consumption ammonia nitrogen removal comprehensive water treatment device for coal chemical industry waste water. The efficient low-consumption ammonia nitrogen removal comprehensive water treatment device comprises a catalytic oxidation tank, an oxidation stabilization tank, a post biochemistry BAF tank, a clean water tank, a water collecting tank and a filter, wherein the catalytic oxidation tank is filled with ozone catalytic particles in a form of fixed bed, the ozone catalytic particles are prepared from the following components in parts by weight: activated aluminum oxide particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol; the post biochemistry BAF tank further comprises an anaerobic tank and an aerobiotic tank, an aerator is located at the bottom of an aeration cylinder, an oxygen pipe used for transmitting oxygen is located in the aeration cylinder and is connected to the aerator, and aerobic activated sludge particles and a second masson pine are located between the side wall of the aerobiotic tank and the aeration cylinder; the upper part of the aeration cylinder is provided with a backflow window part which is located above an upper sieve plate. The system provided by the invention is low in running cost, simple to operate, and stable in running, the aim of efficiently decomposing organic pollutants is obtained, and coal chemical industry waste water advanced treatment and discharge in compliance with the standards are realized.

Description

technical field [0001] The invention relates to a high-efficiency and low-consumption ammonia nitrogen comprehensive water treatment equipment for coal chemical wastewater, belonging to the technical field of coal chemical 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 ...

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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