摘要
好氧颗粒污泥(AGS)技术被誉为有望替代活性污泥法的下一代污水生物法处理技术,但其存在长期运行下颗粒易解体而造成系统失稳的瓶颈问题,未能大规模化工程应用.通过文献分析和整理,系统归纳了造成AGS解体的各类不利因素及其危害阈值与作用机制,梳理了解体AGS的现有修复策略,成效及其再颗粒化机理,并基于现有研究的局限性对未来的研究方向进行展望,以期实现AGS系统a解体-再颗粒化”的动态稳定运行,推动污水厂采纳AGS技术而低碳化转型.
Aerobic granular sludge(AGS)technology,which is expected to replace conventional activated sludge process,has been promised as the next generation technology of biological wastewater treatment.However,it has a key bottleneck problem that aerobic granules are easy to disintegrate,and then cause system instability under the long-term operation,so it is difficult to be applied in large-scale engineering.Through literature analysis and organization,a variety of adverse factors causing granules disintegration,their hazard threshold and reaction mechanisms were systematically summarized.Moreover,current recovery strategies for disintegrated granules,their effectiveness and re-granulation mechanisms were reviewed.Based on limitations of current research,this work proposed the future research directions,aim at realizing the dynamically stable operation of the AGS systems through the circle of disintegration to re-granulation.Finally,it is expected to promote the low-carbon transformation of the wastewater treatment plants by practically adopting AGS technology.
作者
郭媛
冯思琪
权晨妍
李家科
王新华
时文歆
GUO Yuan;FENG Si-qi;QUAN Chen-yan;LI Jia-ke;WANG Xin-hua;SHI Wen-xin(Department of Municipal and Environmental Engineering,State Key Laboratory of Eco-hydraulics in Northwest Arid Region,Xi’an University of Technology,Xi’an 710048,China;School of Environmental Science and Engineering,Shandong University,Qingdao 266237,China;College of Environmental and Ecology,Chongqing University,Chongqing 400044,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2024年第2期708-720,共13页
China Environmental Science
基金
中国博士后科学基金资助项目(2022M712561)
陕西省自然科学基础研究计划项目(2023-JC-QN-0410)
国家自然科学基金资助项目(51978098)。
关键词
好氧颗粒污泥
影响因素
解体
修复
生物强化
aerobic granular sludge
influencing factors
disintegration
remediation
bioaugmentation
