化工环保2025，Vol.45Issue(4)：510-516,7.DOI:10.3969/j.issn.1006-1878.2025.04.008
阿昔洛韦介导生物除磷工艺的低温运行效能
Low-temperature operational efficiency of biological phosphorus removal process mediated by acyclovir
摘要
Abstract
The study employed a sequencing batch reactor(SBR)to investigate the impact of acyclovir(ACV)concentration in wastewater on the performance of enhanced biological phosphorus removal(EBPR)at 10℃.The dynamic variations of chemical oxygen demand(COD)and soluble orthophosphate(SOP)during one operational cycle were systematically examined,along with concurrent analyses of sludge characteristics and intracellular polymer transformations.Experimental results demonstrate that ACV compromises EBPR efficiency.At ACV concentration of 5.0 mg/L,COD removal efficiency declines from 82.6%-88.6%to 72.6%-76.4%,while SOP removal efficiency decreases from 92.6%-96.3%to 74.6%-82.3%.Throughout the operational cycle,ACV exposure reduces COD consumption,inhibits anaerobic SOP release,and impairs aerobic SOP uptake,collectively leading to deteriorated COD and SOP removal efficiencies.When ACV concentrations range from 0.1 to 5.0 mg/L,prolonged operation shows minimal effects on total suspended solids(TSS),sludge volume index(SVI),and extracellular polymeric substances(EPS),indicating no significant interference with normal system operation.However,ACV substantially affects intracellular polymers by suppressing polyhydroxyalkanoates(PHA)synthesis while enhancing glycogen metabolism,ultimately diminishing the phosphorus removal capacity of the EBPR system.关键词
强化生物除磷/阿昔洛韦/污泥体积指数/胞外聚合物/聚羟基烷酸酯Key words
enhanced biological phosphorus removal/acyclovir/sludge volume index/extracellular polymeric substances/polyhydroxyalkanoate分类
资源环境引用本文复制引用
闫凯,孙莉莉,王海烽..阿昔洛韦介导生物除磷工艺的低温运行效能[J].化工环保,2025,45(4):510-516,7.基金项目
开封市科技项目(2003048). （2003048）
