摘要
利用微波-Fenton联合工艺对二甲基砜(DMSO)废水进行处理,探讨了pH、微波辐照功率与时间等因素对其去除率的影响。结果表明,对于质量浓度为50 g/L的DMSO废水(无需调整pH),采用240 W微波辐照5 min,在H_(2)O_(2)投加量为5 mL/min、Fe^(2+)/H_(2)O_(2)摩尔比为1/16时,DMSO去除率最高达98.85%。利用SBBR法对微波-Fenton法处理后残留的DMSO废水进行进一步处理,正常运行工况下对质量浓度1.1 g/L以内的DMSO废水的去除率稳定在90%以上。
A microwave enhanced sensitized Fenton system is used for treating DMSO-containing wastewater.The effects of microwave irradiation time,microwave power,pH value,H_(2)O_(2) dosage,dosing method,and Fe^(2+)/H_(2)O_(2) molar ratio on the removal rate of DMSO are explored.It is found that the removal rate of DMSO from wastewater can reach as high as 98.85%when the initial mass concentration of DMSO-containing wastewater is 50 g·L^(-1),microwave irradiation lasts for 5 min,microwave power is 240 W and H_(2)O_(2) dosage is 5 mL·min^(-1),the molar ratio of Fe^(2+)/H_(2)O_(2) is 1/16 and pH is not adjusted.The residual wastewater after treatment by microwave-enhanced Fenton method is further treated by SBBR method,and the removal rate of DMSO from wastewater with a mass concentration lower than 1.1 g·L^(-1) is stable above 90%under normal operation conditions.
作者
李希希
陈洪敏
周碧莲
陈玉成
LI Xi-xi;CHEN Hong-min;ZHOU Bi-lian;CHEN Yu-cheng(Chongqing Chemical Industry Vocational College,Chongqing 401228,China;College of Resources&Environment,Southwest University,Chongqing 400716,China)
出处
《现代化工》
CAS
CSCD
北大核心
2022年第10期180-184,共5页
Modern Chemical Industry
基金
重庆市教育委员会科学技术研究计划项目(KJQN201904503)。
作者简介
李希希(1989-),女,硕士,讲师,研究方向为水污染控制,137621831@qq.com;通讯联系人:陈玉成(1965-),男,博士,教授,研究方向为水污染控制工程,372505096@qq.com。
