Advances in Biological Nitrogen Removal of Landfill Leachate

With the development of economy and improvement people’s living standard, landfill leachate has been increasing year by with increase in municipal solid waste output. How to treat high efficiency low consumption become a major problem, because its ammonia nitrogen organic matter content, carbon ratio difficult degradation. In order provide reference for future engineering application treatment, this paper mainly reviews biological treatment methods leachate, which focuses on comparison removal processes combined microorganisms, ecology technology direct microorganisms. addition, mechanism factors affecting microbial activity during process are also described. It is concluded that microorganisms have higher compared For example, based anaerobic ammonium oxidation (ANAMMOX) can reach more than 99%. Therefore, should be paid attention to, improved from aspects considering activity.