Process for treating and recycling ammonia nitrogen wastewater

Abstract

The invention provides a process for treating and recycling ammonia nitrogen wastewater. In the process, the ammonia nitrogen wastewater is treated by an ultrafiltration system. The process has the energy conservation characteristics that: combination is reasonable, investment cost and operation cost are reduced, water resources in the wastewater are efficiently separated by membrane separation technology, the process is performed at normal temperature, phase change is avoided and the like. The wastewater passes through a membrane and then is recycled, ammonium salt in the wastewater is treated at proper time, waste materials are changed into things of value, and external zero emission is realized. The nanofiltered concentrated water flows back to the inlet side of electroosmosis to be treated, so that external wastewater zero emission is realized and the ammonium salt is collected furthest.

Description

Technical field

[0001] The invention relates to a process for the treatment and reuse of ammonia nitrogen wastewater. Background technique

[0002] With the rapid development of my country's industry, the production of ammonia nitrogen wastewater has more and more serious impacts on the environment. The massive discharge of ammonia nitrogen and chloride ions will cause great harm to the environment. Too high concentration of ammonia nitrogen in the water body will lead to rich oxidation of the water body, deterioration of water resources, and also have a certain impact on human health. The large discharge of chloride ions will also cause changes in soil structure, which will cause great harm to crops and underground buildings. At present, in my country, the treatment of ammonia nitrogen wastewater is still an urgent problem to be solved. Therefore, it is of great practical significance to study the technology of economical and effective treatment of ammonia nitrogen wastewater. ...

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