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作 者:周鹏 许艺馨 全家庆 吴忠达 黄德书 罗靖 ZHOU Peng;XU Yi-xin;QUAN Jia-qing;WU Zhong-da;HUANG De-shu;LUO Jing(Ecological&Environmental Protection College of Guangxi Logistics Vocational&Technical College,Guigang,Guangxi 537100,China;Shenzhen Jingxu Engineering Co.,LTD,Shenzhen,Guangdong 518000,China;Guigang Zhong Sai Environmental Monitoring Co.,Ltd.,Guigang,Guangxi 537100,China)
机构地区:[1]广西物流职业技术学院生态环保学院,广西贵港537100 [2]深圳璟旭工程有限公司,广东深圳518000 [3]贵港市中赛环境监测有限公司,广西贵港537100
出 处:《四川环境》2025年第2期156-162,共7页Sichuan Environment
基 金:广西高校中青年教师科研基础能力提升项目-微电+微纳米泡耦合过一硫酸盐处理农村生活污水的研究(2023KY2049)。
摘 要:针对农村生活污水处理中占地面积大、处理成本高及传统生物处理系统易受影响的问题,旨在探索电解协同微纳米泡耦合过一硫酸盐(PMS)技术的处理效果。通过考察铁碳比、反应时间、PMS投加量、MBs进气量、电流强度及初始pH等因素对处理效果的影响,确定了最佳处理条件。结果表明,在反应时间120min、PMS投加量0.15mmol/L、pH=7、MBs进气量20mL/min、电流强度10A、铁碳质量比1∶1时,污染物去除效果最佳,COD去除率为86.98%,氨氮去除率为77.18%,总氮去除率为53.61%,总磷去除率为75.67%。自由基淬灭实验表明,硫酸根、羟基和超氧自由基是降解的主要活性物质。本研究提供了一种在不调节污水pH值的前提下实现非生化同步脱碳脱氮除磷的技术,为电解协同微纳米泡耦合过一硫酸盐在农村生活污水处理中的应用提供了指导意义。In response to the problems of large land occupation,high treatment cost and susceptibility to external influences in rural domestic wastewater treatment,the treatment effect of electrolysis and peracetic acid coupled with micro-nano bubbles was explored in this study.By examining the effects of iron-carbon ratio,reaction time,PMS dosage,MBs air intake,current intensity,and initial pH on treatment efficiency,the optimal treatment conditions were determined.The results showed that when the reaction time was 120 minutes,the PMS dosage was 0.15 mmol/L,the pH was 7,the MBs air intake was 20 mL/min,the current intensity was 10 A,and the iron-carbon mass ratio was 1∶1,the pollutant removal effect was the best,with a COD removalrate of 86.98%,ammonia nitrogen removal rate of 77.18%,total nitrogen removal rate of 53.61%,and total phosphorus removal rate of 75.67%.The free radical quenching experiment showed that sulfate,hydroxyl and superoxide free radicals were the main active substances for degradation.This study provides a non-biochemical synchronous carbon and nitrogen removal and phosphorus removal technology without adjusting the pH of wastewater,providing guidance for the application of electrolysis and peracetic acid coupled with micro-nano bubble in rural domestic wastewater treatment.
分 类 号:TU992[建筑科学—市政工程] X799.3[环境科学与工程—环境工程]
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