Research progress in Treatment of Aged Landfill Leachate by Short-Cut Nitrification Combined with Anammoxidation
Landfill is the main way to treat garbage in China,and leachate will be produced in the process.It is a kind of organic wastewater with high ammonia nitrogen,and has great change and complexity in water quality.The traditional treatment method of landfill leachate has the problems of high cost and poor treatment effect,so it is necessary to find a way to deal with the poor treatment method.The short-cut nitrification ANAMMOX combined process has the characteristics of low energy consumption,no additional carbon source and less sludge production,which can make up for the shortcomings of the traditional treatment method.The traditional biological nitrogen removal process based on whole-process nitrification and denitrification requires a large amount of oxygen supply in the process of nitrification,and the denitrification process requires organic matter as a carbon source,which has the problem of excessive energy consumption and drug consumption.In order to reduce the cost of wastewater treatment,the combined process of short-cut nitrification and ANAMNOX has been developed rapidly.The influencing factors of short-cut nitrification and ANAMMOX process were reviewed,and the future research direction of short-cut nitrification and ANAMMOX process was prospected.
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