环境工程学报2025，Vol.19Issue(2)：354-363,10.DOI:10.12030/j.cjee.202410081
脉冲光-电协同去除含盐废水中有机污染物的研究
Removal of organic pollutants from saline wastewater by intense pulsed light(IPL)-electro reactor
摘要
Abstract
Industrial wastewater often contains a large number of chloride ions,which can form strong oxidizing reactive chlorine species(RCS)under photo-electric catalytic process for wastewater purification.In order to improve the shortcomings such as low mass transfer efficiency and poor light penetration in the practical wastewater treatment of saline organic wastewater,this study developed an intense pulsed light coupled with flow-through electrode and analyzed its degradation performance of organic pollutants 4-nitrophenol.By comparing the light source with the conventional ultraviolet light source of the same power,it was found that the degradation efficiency and mineralization efficiency of 4-nitrophenol were higher than that of intense pulse light.Under the 3 V voltage cooperative pulse light source,19～24 min hydraulic retention time(HRT),4-nitrophenol removal efficiency could reach up to 90％in single pass The optimum parameters for reactor operation were intense pulsed light with 2 V voltage,50 mmol·L-1 sodium chloride concentration and HRT of 19 min.The solution pH,chloride ion concentration,HRT and applied voltage could directly affect the degradation efficiency of 4-nitrophenol.Under the photo-electric synergistic effect,reactive chlorine species were greatly produced which played a major role in the degradation of 4-nitrophenol.The results of this study provide a new solution for the removal of organic pollutants in saline wastewater.关键词
光电协同/脉冲光/氯活性物质/穿透式电极Key words
photo-electric synergistic/intense pulsed light/reactive chlorine species/flow-through electrode分类
资源环境引用本文复制引用
周雨珺,吉庆华,古振澳,李健生..脉冲光-电协同去除含盐废水中有机污染物的研究[J].环境工程学报,2025,19(2):354-363,10.基金项目
国家自然科学基金资助项目(52200098) （52200098）
