摘要
雨水虽是一种可持续的非常规水源,但径流过程中携带的病原微生物对公共卫生及人类健康存在潜在风险。生物滞留系统是海绵城市建设中径流污染控制的常用源头措施,其不仅可去除常规性污染物,还可在一定程度上控制病原微生物,在雨水处理回用方面具有良好的应用前景。文章结合回用水质标准重点分析了生物滞留系统对病原微生物的削减效果,综述了强化型生物滞留系统对病原微生物的去除研究进展。传统生物滞留系统虽可有效去除病原微生物,但难以满足雨水回用要求,而选用抗菌性植物,增设抗菌填料或添加生物炭介质可显著提高系统对病原微生物的去除率。作者提出,今后的研究将重点关注雨水径流中病原微生物在生物滞留系统中的去除机理与过程模型,进而探寻系统的最佳运行条件与工艺设计参数,以提高系统对病原微生物的去除效果与稳定性。
Although stormwater is a sustainable unconventional water source,the pathogens carried in the runoff pose potential risks to public and human health.The bioretention system is a common measure for runoff pollution control in the construction of sponge cities.It can not only remove conventional pollutants,but also control pathogens at a certain extent,and has a good application prospect in rainwater treatment and reuse.The reduction effect of bioretention system on pathogens was analyzed combined with the reuse water quality standard,and finally the research progress of enhanced bioretention system on the removal of pathogens was summarized.Result shows that although the traditional bioretention system can effectively remove pathogens,it is difficult to meet the requirements of rainwater reuse.However,the selection of antibacterial plants,the addition of antibacterial fillers and biochar media can improve the removal rate of pathogens significantly.Future research should focus on the removal mechanism and process model of pathogens in stormwater runoff in the bioretention system,and then explore the optimal operating conditions and process design parameters of the system to improve the removal performance and stability of pathogens.
作者
陈人瑜
刘臻
陈垚
邓淋月
袁绍春
CHEN Renyu;LIU Zhen;CHEN Yao;DENG Linyue;YUAN Shaochun(School of River and Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Engineering Laboratory of Environmental Hydraulic Engineering of Chongqing Municipal Development and Reform Commission,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2021年第7期14-19,共6页
Environmental Science & Technology
基金
国家自然科学基金项目(51709024)
重庆市建设科技计划项目(城科字2020第5-7)
重庆市青少年创新人才培养雏鹰计划项目(CY200701)
重庆市自然科学基金项目(cstc2020jcyj-msxmX1000)
重庆市留创计划项目(cx2017065)
