短程硝化联合厌氧氨氧化处理老龄垃圾渗滤液研究进展

Research progress in Treatment of Aged Landfill Leachate by Short-Cut Nitrification Combined with Anammoxidation

垃圾填埋是我国处理垃圾的主要方式,在此过程中会产生渗滤液。其具有水质变化大、复杂等特点,是一种高氨氮的有机废水。垃圾渗滤液传统处理法又有成本高、处理效果不佳的问题,因此需要找到应对处理方式不佳的方法。短程硝化-厌氧氨氧化(PN-A)耦合工艺具有不加碳源、污泥产量少的特点。基于传统硝化反硝化脱氮在硝化过程中需要氧气,反硝化过程又需要有机物作为碳源提供营养,会增加处理成本。为了降低处理成本,短程硝化-厌氧氨氧化(ANAMNOX)耦合工艺得到了广泛应用。从PN-A工艺的影响因素出发,并对工艺未来的研究和发展方向进行了展望。

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.