环境工程学报2025，Vol.19Issue(5)：1102-1110,9.DOI:10.12030/j.cjee.202411010
硫自养反硝化生物滤池脱氮除磷同步去除土霉素
Nitrogen and phosphorus removal with simultaneous oxytetracycline removal in sulfur autotrophic denitrification biofilter
摘要
Abstract
Focusing on the challenges of water environmental management,the research examines the simultaneous removal of nitrogen,phosphorus,and emerging pollutants.A process was employed,using sulfur or pyrite as the fillers for simultaneous nitrogen and phosphorus removal.By varying the mass concentration of NO3--N and the hydraulic residence time(HRT),the study investigated the efficiency of simultaneous nitrogen and phosphorus removal as well as the optimal operating parameters for the reactor.Additionally,the impact of oxytetracycline(OTC)on nitrogen and phosphorus removal and the effectiveness of sulfur autotrophic processes in removing OTC were examined by adding OTC to the reactor.The results demonstrated that the reactor effectively achieved simultaneous nitrogen and phosphorus removal.The optimal operating conditions were found to be an influent NO3--N concentration of 45 mg·L-1 and an HRT of 12 hours.Under these conditions,the effluent total nitrogen(TN)concentration was(12.41±0.83)mg·L-1,meeting the discharge requirements for TN in the national"Discharge Standards for Pollutants from Urban Wastewater Treatment Plants"(GB 18918-2002).Furthermore,under the optimal conditions,the sulfur autotrophic denitrifying bacteria in the reactor could gradually tolerate the OTC inhibition and maintain stable nitrogen and phosphorus removal performance.关键词
硫自养反硝化/脱氮除磷/土霉素Key words
sulfur autotrophic denitrification/nitrogen and phosphorus removal/oxytetracycline分类
环境科学引用本文复制引用
周子轩,梁慧宇,赵晴,陈奔,孙连鹏,徐兴泉,廖嘉俊,叶从容,吕慧..硫自养反硝化生物滤池脱氮除磷同步去除土霉素[J].环境工程学报,2025,19(5):1102-1110,9.基金项目
国家自然科学基金资助项目(42077155) （42077155）
