The nitrogen contained in wastewater can be regarded as a valuable resource.How to achieve deep recovery and value-added utilization of nitrogen from destructive nitrogen removal in wastewater has become a core issue that urgently needs to be solved in field of water pollution control,and it is also the main idea to alleviate the traditional resource shortage caused by population expansion.This paper takes ammonia stripping,struvite precipitation method,ion exchange and adsorption,membrane separation,microbial fuel cell and microalgae treatment as examples to analyze and compare the applicable objects of various nitrogen recovery technologies.Their advantages,disadvantages,bottlenecks,and challenges are summarized.Finally,this paper evaluates the potential of different technologies in nitrogen recovery from the perspective of market demanding for recycled products and effluent quality and look forward to the future development trend of nitrogen recovery technology.
维普
万方数据