Degradation of Microcystin-LR by Gas-Liquid Interfacial Discharge Plasma

XIN Qing (辛青); ZHANG Yi (张轶); WU Kaibin (巫开斌)

doi:10.1088/1009-0630/15/12/11

Plasma Science and Technology > 2013 > 15(12): 1221-1225. > DOI: 10.1088/1009-0630/15/12/11

XIN Qing (辛青), ZHANG Yi (张轶), WU Kaibin (巫开斌). Degradation of Microcystin-LR by Gas-Liquid Interfacial Discharge Plasma[J]. Plasma Science and Technology, 2013, 15(12): 1221-1225. DOI: 10.1088/1009-0630/15/12/11

Citation:

PDF (3488 KB)

Degradation of Microcystin-LR by Gas-Liquid Interfacial Discharge Plasma

1 College of Electronic Information, Hangzhou Dianzi University, Hangzhou 310018, China 2 School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China 3 Hangzhou Wahaha Group Co., Ltd., Hangzhou 310012, China

Funds: supported by National Natural Science Foundation of China (Nos.21006017 and 20906079) and Zhejiang Provincial Natural Science Foundation of China (Grant Y5100356)

More Information

Received Date: November 06, 2012

Graphical Abstract

Abstract

Abstract

In this study, we report on the degradation of microcystin-LR (MC-LR) by gas- liquid interfacial discharge plasma. The influences of operation parameters such as average input voltage, electrode distance and gas flow rate are investigated. Experimental results indicate that the input voltage and gas flow rate have positive influences on MC-LR degradation, while the electrode distance has a negative one. After 6 min discharge with 25 kV average input voltage and 60 L/h air aeration, the degradation rate of MC-LR achieves 75.3%. H₂ O₂ and O₃ generated by discharge both in distilled water and MC-LR solution are measured. Moreover, an emission spectroscopy is used as an indicator of the processes that take place on the gas-liquid boundary and inside plasma. Varied types of radicals (O, ·OH, CO, O ₃, etc.) are proved to be present in the gas phase during gas-liquid interfacial discharge.
- gas-liquid interfacial discharge,
- microcystin-LR,
- degradation

FullText(HTML)

References (0)

[1]	Qinghu YANG, Zhipeng CHEN, Zhigang HAO, Yangming ZHAO, Xin XU, Shuhao LI, Jie YANG, Wei YAN, Zhonghe JIANG, Zhongyong CHEN, Nengchao WANG, Zhoujun YANG, Yuan PAN, Yonghua DING, the J-TEXT Team. Design and first result of combined Langmuir-magnetic probe on J-TEXT tokamak[J]. Plasma Science and Technology, 2022, 24(5): 054005. DOI: 10.1088/2058-6272/ac41bf
[2]	Jie YANG (阳杰), Zhipeng CHEN (陈志鹏), Hai LIU (刘海), Tong WANG (王通), Mingcong ZHU (朱明聪), Zebao SONG (宋泽豹), Zhijiang WANG (王之江), Ge ZHUANG (庄革), Yonghua DING (丁永华), the J-TEXT Team. The application of limiter target electrostatic measurement system in J-TEXT tokamak[J]. Plasma Science and Technology, 2019, 21(10): 105105. DOI: 10.1088/2058-6272/ab2e7f
[3]	Huihui WANG (王慧慧), Zun ZHANG (张尊), Kaiyi YANG (杨凯翼), Chang TAN (谭畅), Ruilin CUI (崔瑞林), Jiting OUYANG (欧阳吉庭). Axial profiles of argon helicon plasma by optical emission spectroscope and Langmuir probe[J]. Plasma Science and Technology, 2019, 21(7): 74009-074009. DOI: 10.1088/2058-6272/ab175b
[4]	Bowen RUAN (阮博文), Zhoujun YANG (杨州军), Xiaoming PAN (潘晓明), Hao ZHOU (周豪), Fengqi CHANG (常风岐), Jing ZHOU (周静). Estimation of magnetic island width by the fluctuations of electron cyclotron emission radiometer on J-TEXT[J]. Plasma Science and Technology, 2019, 21(1): 15102-015102. DOI: 10.1088/2058-6272/aae382
[5]	Yonghua DING (丁永华), Zhongyong CHEN (陈忠勇), Zhipeng CHEN (陈志鹏), Zhoujun YANG (杨州军), Nengchao WANG (王能超), Qiming HU (胡启明), Bo RAO (饶波), Jie CHEN (陈杰), Zhifeng CHENG (程芝峰), Li GAO (高丽), Zhonghe JIANG (江中和), Lu WANG (王璐), Zhijiang WANG (王之江), Xiaoqing ZHANG (张晓卿), Wei ZHENG (郑玮), Ming ZHANG (张明), Ge ZHUANG (庄革), Qingquan YU (虞清泉), Yunfeng LIANG (梁云峰), Kexun YU (于克训), Xiwei HU (胡希伟), Yuan PAN (潘垣), Kenneth William GENTLE, the J-TEXT Team. Overview of the J-TEXT progress on RMP and disruption physics[J]. Plasma Science and Technology, 2018, 20(12): 125101. DOI: 10.1088/2058-6272/aadcfd
[6]	Donghui XIA (夏冬辉), Fangtai CUI (崔芳泰), Changhai LIU (刘昌海), Zhenxiong YU (余振雄), Yikun JIN (金易坤), Zhijiang WANG (王之江), J-TEXT team. The anode power supply for the ECRH system on the J-TEXT tokamak[J]. Plasma Science and Technology, 2018, 20(1): 14018-014018. DOI: 10.1088/2058-6272/aa936d
[7]	LIU Yukai (刘煜锴), GAO Li (高丽), LIU Haiqing (刘海庆), YANG Yao (杨曜), GAO Xiang (高翔), J-TEXT Team. Fast Data Processing of a Polarimeter-Interferometer System on J-TEXT[J]. Plasma Science and Technology, 2016, 18(12): 1143-1147. DOI: 10.1088/1009-0630/18/12/01
[8]	XIAO Jinshui(肖金水), YANG Zhoujun(杨州军), ZHUANG Ge(庄革), HU Qiming(胡启明), FENG Xiande(冯先德), LIU Minghai(刘明海). Plasma Response to Supersonic Molecular Beam Injection in J-TEXT[J]. Plasma Science and Technology, 2014, 16(1): 17-20. DOI: 10.1088/1009-0630/16/1/04
[9]	LIU Peng (刘鹏), XU Guosheng (徐国盛), WANG Huiqian (汪惠乾), JIANG Min (蒋敏), et al.. Reciprocating Probe Measurements of L-H Transition in LHCD H-Mode on EAST[J]. Plasma Science and Technology, 2013, 15(7): 619-622. DOI: 10.1088/1009-0630/15/7/03
[10]	TANG Enling (唐恩凌), XIANG Shenghai (相升海), YANG Minghai (杨明海), LI Lexin (李乐新). Sweep Langmuir Probe and Triple Probe Diagnostics for Transient Plasma Produced by Hypervelocity Impact[J]. Plasma Science and Technology, 2012, 14(8): 747-753. DOI: 10.1088/1009-0630/14/8/12