Centre for Environmental Studies, Anna University, Chennai, India.
Waste Manag. 2012 Dec;32(12):2385-400. doi: 10.1016/j.wasman.2012.06.006. Epub 2012 Jul 4.
In today's context of waste management, landfilling of Municipal Solid Waste (MSW) is considered to be one of the standard practices worldwide. Leachate generated from municipal landfills has become a great threat to the surroundings as it contains high concentration of organics, ammonia and other toxic pollutants. Emphasis has to be placed on the removal of ammonia nitrogen in particular, derived from the nitrogen content of the MSW and it is a long term pollution problem in landfills which determines when the landfill can be considered stable. Several biological processes are available for the removal of ammonia but novel processes such as the Single Reactor System for High Activity Ammonia Removal over Nitrite (SHARON) and Anaerobic Ammonium Oxidation (ANAMMOX) process have great potential and several advantages over conventional processes. The combined SHARON-ANAMMOX process for municipal landfill leachate treatment is a new, innovative and significant approach that requires more research to identify and solve critical issues. This review addresses the operational parameters, microbiology, biochemistry and application of both the processes to remove ammonia from leachate.
在当今的废物管理背景下，垃圾填埋被认为是全球范围内的标准做法之一。来自城市垃圾填埋场的渗滤液已成为对环境的巨大威胁，因为它含有高浓度的有机物、氨和其他有毒污染物。特别需要强调的是去除氨氮，这是垃圾填埋场中的一个长期污染问题，它决定了垃圾填埋场何时可以被认为是稳定的。有几种生物过程可用于去除氨氮，但新型过程，如亚硝酸单级高活性氨去除系统（SHARON）和厌氧氨氧化（ANAMMOX）工艺具有很大的潜力，并且比传统工艺具有几个优势。用于城市垃圾填埋场渗滤液处理的组合 SHARON-ANAMMOX 工艺是一种新的、创新的重要方法，需要更多的研究来确定和解决关键问题。本综述讨论了这两个过程的操作参数、微生物学、生物化学和应用，以从渗滤液中去除氨氮。
