环境工程学报2026，Vol.20Issue(4)：1122-1131,10.DOI:10.12030/j.cjee.202509035
新型连续流自循环升流式颗粒污泥床工艺处理实际生活污水
A novel continuous-flow self-circulating up-flow granular sludge fluidized bed process for the treatment of real domestic sewage
摘要
Abstract
Aerobic granular sludge(AGS)is promising,cost-effective,and efficient wastewater treatment technology,promising,cost-effective,and efficient wastewater treatment technology.To overcome the challenges of cultivating and maintaining AGS in continuous-flow systems,this study introduces a continuous-flow self-circulating up-flow granular sludge bed process(Zier process)with separated aeration for treating real domestic sewage.By adjusting key operational parameters,the nitrogen removal performance of the Zier process and its effect on AGS stability were investigated.The results showed that under a hydraulic retention time of 10 h,a self-circulation frequency of 29～58 times,and aan up flow rate of 11～18 m·h-1,the average effluent concentrations and were maintained at 5±3.4 mg·L-1 NH4+-N and 10±2.8 mg·L-1 TN,and 30±6.2 mg·L-1 COD.Furthermore,this process maintained the stability of the granular sludge,with the sludge concentration increasing from 5 080 mg·L-1 to 6 650 mg·L-1,the average sludge particle size at 209.6 μm,SVI at 50～60 mL·g-1,EPS content increasing from 26.05 mg·g-1 to 68.27 mg·g-1,LB-EPS content increasing from 3.98 mg·g-1 to 6.33 mg·g-1,and TB-EPS content increasing from 22.07 mg·g-1 to 61.94 mg·g-1.PN content increased from 21.26 mg·g-1 to 59.44 mg·g-1,and PS content increased from 4.79 mg·g-1 to 8.82 mg·g-1.PN/PS increased from 4.4 to 6.7.These metrics indicate excellent settleability and system stability,supporting long-term continuous operation.In summary,the Zier process demonstrates effective nitrogen removal and robust AGS maintenance.Its configuration and operational strategy offer a viable pathway for implementing continuous-flow aerobic granular sludge technology in real domestic wastewater treatment.关键词
好氧颗粒污泥/连续流/生物脱氮/Zier工艺/实际生活污水Key words
aerobic granular sludge/continuous flow/biological nitrogen removal/Zier process/actual domestic sewage分类
资源环境引用本文复制引用
呼锐,孙语鸽,张敬宇,戚伟康..新型连续流自循环升流式颗粒污泥床工艺处理实际生活污水[J].环境工程学报,2026,20(4):1122-1131,10.基金项目
国家自然科学基金资助项目(42277054) （42277054）
山东省重点研发计划资助项目(2021CXGC011202) （2021CXGC011202）
