摘要
低温等离子体废水处理技术有较好的发展前景,但目前技术的处理效率还有待提高.改进设计一种结构简单、易于工业化扩展的低温等离子装置,研究不同因素对有机染料废水降解的影响,寻找最佳的处理条件.研究结果表明:低温等离子体处理过程中产生的活性氧能有效降解染料;添加合适剂量的亚铁离子能进一步提高亚甲基蓝的降解效率;随着处理时间的增加,溶液的化学需氧量降低.
Low-temperature non-thermal atmospheric-pressure plasma technology shows promising prospect for wastewater treatment,although it still remains a challenge to improve the treatment efficiency.In this paper a simple and industrially scalable prototype of plasma reactor based on dielectric barrier discharge (DBD)was optimised to treat dyecontaminated wastewater,and the influence of varied factors on the efficiency of degradation of the organic dye was investigated in order to explore the optimal treatment conditions.The results showed that the reactive oxygen species (ROS)produced from plasma treatment could degrade the dye effectively.With addition of appropriate dose of ferrous ions,the efficiency could be even more improved.The chemical oxygen demand (COD)value of the dye-contaminated water decreased with processing time.
作者
张启富
黄青
ZHANG Qifu;HUANG Qing(Institute of Technical Biology and Agriculture Engineering,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;National Synchrotron Radiation Laboratory,University of Science and TechnoIogy of China,Hefei 230026,China)
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2019年第1期59-65,共7页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(11635013)
关键词
介质阻挡放电
低温等离子体
有机染料废水
亚甲基蓝
化学需氧量
dielectric barrier discharge
low-temperature plasma
organic dye wastewater
methylene blue
chemical oxygen demand
