废水厌氧处理中溶解性甲烷直接利用研究进展  

Research progress of direct utilization of dissolved methane in anaerobic biological treatment of wastewater

作　　者：先云川 宿程远 王梓[2] 刘圣涛 陈政鹏 林香凤 张云楠[2] XIAN Yun-chuan;SU Cheng-yuan;WANG Zi;LIU Sheng-tao;CHEN Zheng-peng;LIN Xiang-feng;ZHANG Yun-nan(Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University),Ministry of Education,Guilin 541004,China;School of Environment and Resources,Guangxi Normal University,Guilin 541004,China)

机构地区：[1]珍稀濒危动植物生态与环境保护教育部重点实验室,广西桂林541004 [2]广西师范大学环境与资源学院,广西桂林541004

出　　处：《中国环境科学》2023年第S1期79-87,共9页China Environmental Science

基　　金：国家自然科学基金资助项目(52060003);大学生创新创业训练计划项目(202210602083)

摘　　要：主流厌氧废水处理工艺在运行过程中往往会产生溶解性甲烷(CH_(4)),如后续处理不当,会释放CH_(4)加剧温室效应并造成能源浪费.充分利用废水厌氧生物处理过程中所产生的溶解性CH_(4)具有重要的现实意义.溶解性CH_(4)的直接利用不同于去除与回收,减少了分离CH_(4)这一过程,具有较好的净能源生产潜力,一般可通过CH_(4)的厌氧氧化过程与废水中其他污染物包括硫酸盐,硝酸盐或重金属的还原进行耦合;或是将其转化为有更高商业价值的蛋白质,生物聚合物或甲醇和有机酸等.对厌氧甲烷氧化,甲烷驱动微生物燃料电池及甲烷增值转化等3种方法进行了总结与讨论,阐述了其优势及局限性,总结了其发展潜能,对废水厌氧处理中溶解性CH_(4)利用的未来发展提供了思路.Mainstream anaerobic wastewater treatment processes often produce dissolved methane(CH_(4))during operation,which can be released to exacerbate the greenhouse effect and cause energy wastage if not properly treated subsequently.It is important to utilize the dissolved CH_(4) produced during the anaerobic biological treatment of wastewater.The direct utilization of dissolved CH_(4),unlike removal and recovery,reduces the process of separating CH_(4) and has a better potential for net energy production.Generally,dissolved CH_(4) could be coupled by anaerobic oxidation of CH_(4) with the reduction of other pollutants in the wastewater,including sulfate,nitrate,and heavy metals;or converted it into proteins,biopolymers,methanol,and organic acids with higher commercial value.This review summarized and discussed the three methods of anaerobic methane oxidation,methane-driven microbial fuel cells,and value-added methane conversion,described their advantages and limitations,and summarized their developmental potential to provide ideas for the future development of the utilization of dissolved CH_(4) in anaerobic wastewater treatment.

关 键 词：废水厌氧处理 溶解性甲烷 厌氧甲烷氧化 甲烷驱动 甲烷增值转化 

分 类 号：X703[环境科学与工程—环境工程]