不同填料对快速渗滤系统去除磺胺甲恶唑的持续作用效果探究  

The Continuous Effect of Different Fillers on the Removal of Sulfamethoxazole in Constructed Rapid Infiltration System

作　　者：张启文 杨红薇[1] 樊佳盼 熊辉[1] 江禹友 ZHANG Qi-wen;YANG Hong-wei;FAN Jia-pan;XIONG Hui;JIANG Yu-you(College of Earth Science&Environment,South-west Transportation University,Chengdu Sichuan 610031,China)

机构地区：[1]西南交通大学地球科学与环境学院,四川成都610031

出　　处：《环境科学导刊》2021年第6期28-35,共8页Environmental Science Survey

基　　金：四川省科技厅重点研发项目,2018GZ0415。

摘　　要：以抗生素磺胺甲恶唑(SMX)为研究对象,选取天然材料河沙、火山岩、蛭石和人工材料活性碳为填料构建了模拟CRI系统,开展了持续760多个周期的模拟试验,对不同填料持续影响SMX去除的状况及相关影响因素进行分析,结果表明:河沙、火山岩、蛭石模拟柱受填料吸附和微生物作用的共同影响,对SMX去除率在22.3%~51.8%,填料吸附功能持续时间约320~370d;人工材料活性炭对SMX去除率持续高于92.5%,运行370d以上吸附去除率仍高达52.5%以上,但SMX的积累并未抑制微生物作用,微生物对SMX单周期去除量高达20μg,远高于其他填料,活性炭可作为强化CRI系统功能的备选填料。Fillers are the core of the artificial rapid filtration system(CRI),but the continuous removal efficiency and influencing factors of different fillers for emerging organic pollutants are rarely reported.Taking antibiotics sulfamethoxazole(SMX)as the research object,natural materials including river sand,volcanic,vermiculite and artificial material activated carbon were selected to construct the simulation CRI systems for more than 760 cycles to examine the continuous effect of different fillers on the removal of SMX and the related factors.The results showed that the SMX removal rate of sand,volcanic rock and vermiculite columns was 22.3%~51.8%affected by the adsorption of fillers and the action of microorganism,and the adsorption function lasted for about 320-370 days.The removal rate of artificial activated carbon on SMX was continuously higher than 92.5%,and the adsorption removal rate has been still higher than 52.5%after 370 days while the accumulation of SMX did not inhibit the microbial action,which contributed to 20ug of SMX removal per cycle.The activated carbon could be used as an alternative filler to strengthen the function of CRI system.

关 键 词：人工快速渗滤系统 填料 磺胺甲恶唑 持续影响因素 

分 类 号：X17[环境科学与工程—环境科学]