Reduction and Heavy Metals Removal of Excess Sludge by Radio Frequency Discharge Plasma
Reduction and Heavy Metals Removal of Excess Sludge by Radio Frequency Discharge Plasma
复制标题
DOI：
10.1088/1755-1315/146/1/012069
复制
发表时间：
2018-05
期刊：
影响因子：
--
通讯作者：
Shiyi Sun;Songlin Zhang;Weiwei Zhang;Jiadong Meng;Lei Wang
中科院分区：
文献类型：
--
作者：
Shiyi Sun;Songlin Zhang;Weiwei Zhang;Jiadong Meng;Lei Wang
过量污泥是废水处理中不可避免的副产品。常规方法（填埋、焚烧等）可能会造成二次污染。在本研究中，研究了射频放电等离子体（RFDP）对剩余污泥的还原和重金属去除。实验结果表明，RFDP是一种有效去除总化学需氧量（TCOD）和混合液体悬浮固体（MLSS）的方法。排放过程还会破坏污泥的细胞结构，使细胞结构内的有机物和重金属进入液相。同时结合光谱诊断，对自由基反应进行了讨论。
Excess sludge is an unavoidable by-product in wastewater treatment. The conventional methods(landfill, incineration etc.) may cause secondary pollution. In this study, both reduction and heavy metals removal of excess sludge by radio frequency discharge plasma(RFDP) were investigated. The experimental results showed that RFDP was an effective removal method on total chemical oxygen demand (TCOD) and mixed liquid suspended solids(MLSS). Discharge process could also damage the cell structure of sludge, so that organic matter and heavy metals within the cell structure could enter the liquid phase. At the same time, combined with spectral diagnosis, the radical reactions was discussed.