有机废弃物厌氧发酵液中氨氮回收研究进展  

Research progress of nitrogen recovery from anaerobic fermentation broth of organic waste

作　　者：韩盼 孙卫宁 李夏桐 杨林 周凯乐 程刚[1] HAN Pan;SUN Wei-ning;LI Xia-tong;YANG Lin;ZHOU Kai-le;CHENG Gang(School of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an 710600,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710600

出　　处：《应用化工》2023年第9期2694-2697,共4页Applied Chemical Industry

基　　金：陕西省科技计划项目(2019GY-163);西安市科技计划项目(20SFSF0012);西安工程大学产学研用项目(2020KJ234)。

摘　　要：从资源回收的角度出发,综述了物化法(蒸发法、吹脱法、吸附法、膜分离法、磷酸铵镁沉淀法)和生物法等方法回收有机废弃物厌氧发酵液中氨氮的形式及机理,分析了厌氧发酵液pH、温度、气液比、悬浮物和有机物、高浓度氨氮等因素对氨氮回收效果的影响,针对存在的运行成本高、吸附容量小、膜污染、富集能力有限且不易分离等问题,提出了深入探究稳定高效、价格低廉、操作方便的氮回收技术或组合工艺并优化其工艺条件的研究方向,以期为有机废弃物厌氧发酵液中氨氮资源化利用提供参考。From the perspective of resource recovery,this paper summarized the physical and chemical method(evaporation method,the remove method,adsorption,membrane separation,magnesium ammonium phosphate precipitation)and recycling organic waste anaerobic biological method and other methods in the fermented liquid ammonia nitrogen form and its mechanism,analyses the anaerobic fermentation liquor pH,temperature,gas liquid ratio and suspended solids and organic matter,high concentration of ammonia nitrogen on the effects of the ammonia nitrogen recycling in view of the existing in the running cost is high,the adsorption capacity is small,membrane fouling and concentration ability is limited and difficult problems such as separation,puts forward the delve into a stable and efficient,low cost,convenient operation,nitrogen recovery technology and combination of the process and optimize the process conditions of research direction,in order to organic waste anaerobic fermentation contained ammonia nitrogen utilization to provide the reference.

关 键 词：有机废弃物 厌氧发酵 氨氮 回收 

分 类 号：TQ424[化学工程] TQ444[环境科学与工程—环境工程] X705