Excess sludge disintegration by discharge plasma oxidation: Efficiency and underlying mechanisms

2021 ◽  
Vol 774 ◽  
pp. 145127
Author(s):  
Tengfei Li ◽  
Yanhui Fan ◽  
Hu Li ◽  
Zhiyin Ren ◽  
Liqing Kou ◽  
...  
Keyword(s):  
Discharge Plasma ◽  
Plasma Oxidation ◽  
Excess Sludge ◽  
Underlying Mechanisms ◽  
Oxidation Efficiency

Novel Cu(II)–EDTA Decomplexation by Discharge Plasma Oxidation and Coupled Cu Removal by Alkaline Precipitation: Underneath Mechanisms

2018 ◽  
Vol 52 (14) ◽  
pp. 7884-7891 ◽  
Author(s):  
Tiecheng Wang ◽  
Yang Cao ◽  
Guangzhou Qu ◽  
Qiuhong Sun ◽  
Tianjiao Xia ◽  
...  
Keyword(s):  
Discharge Plasma ◽  
Plasma Oxidation

Oxygen Exchange Phenomena in SIO2 During Microwave-Discharge Plasma Oxidation

1986 ◽  
Vol 75 ◽  
Author(s):  
Shin-Ichiro Kimura ◽  
Eiichi Murakami ◽  
Terunori Warabisako ◽  
Eisuke Mitani ◽  
Hidho sunami
Keyword(s):  
Discharge Plasma ◽  
Microwave Discharge ◽  
Surface Region ◽  
Oxygen Exchange ◽  
Plasma Oxidation ◽  
Migration Process ◽  
Oxygen Migration

AbstractThe oxygen migration process during microwave-discharge plasma oxidation of Si is investigated using 18O as a tracer. The exchange phenomena between migrating oxygen and its counterpart in SiO2 are observed. When plasma grown oxide (Si 18O2) is further oxidized in 18O-enriched plasma. 18O is observed both at the SiO2 /Si interface and in the bulk of Si16O2. For the reversed case. i.e. Si18 O2 is oxidized in 18O plasma, the total amount of pre-existing 18O decreases. The suppression of 18O is more drastic in the surface region. These oxygen distributions indicate that oxygen migrates toward the interface accompanied by oxygen exchange.

An18O study of oxygen exchange phenomena during microwave‐discharge plasma oxidation of silicon

1988 ◽  
Vol 63 (9) ◽  
pp. 4655-4660 ◽  
Author(s):  
Shin‐ichiro Kimura ◽  
Eiichi Murakami ◽  
Terunori Warabisako ◽  
Eisuke Mitani ◽  
Hideo Sunami
Keyword(s):  
Discharge Plasma ◽  
Microwave Discharge ◽  
Oxygen Exchange ◽  
Plasma Oxidation

Insights into the highly efficient detoxification of the biotoxin patulin in water by discharge plasma oxidation

2021 ◽  
Vol 411 ◽  
pp. 128432
Author(s):  
Mingming Xue ◽  
Tiecheng Wang ◽  
Qiuhong Sun ◽  
Guangzhou Qu ◽  
Hanzhong Jia ◽  
...  
Keyword(s):  
Discharge Plasma ◽  
Plasma Oxidation ◽  
Highly Efficient

Degradation of microcystin-LR in water by glow discharge plasma oxidation at the gas–solution interface and its safety evaluation

2012 ◽  
Vol 46 (19) ◽  
pp. 6554-6562 ◽  
Author(s):  
Hong Zhang ◽  
Qing Huang ◽  
Zhigang Ke ◽  
Linfang Yang ◽  
Xiangqin Wang ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Discharge Plasma ◽  
Safety Evaluation ◽  
Glow Discharge Plasma ◽  
Plasma Oxidation ◽  
Solution Interface

Oxidative Removal of Elemental Mercury in Flue Gas by DBD Discharge Plasma

2012 ◽  
Vol 518-523 ◽  
pp. 2621-2624 ◽  
Author(s):  
Yu Ze Jiang ◽  
Jiu Tao An ◽  
Ke Feng Shang ◽  
Na Lu ◽  
Jie Li ◽  
...  
Keyword(s):  
Gas Phase ◽  
Residence Time ◽  
Flue Gas ◽  
Applied Voltage ◽  
Atmospheric Pressure ◽  
Discharge Plasma ◽  
Elemental Mercury ◽  
Experimental Results ◽  
Dbd Plasma ◽  
Oxidation Efficiency

Oxidation of gas phase elemental mercury (Hg0) in the simulated flue gas by DBD plasma under atmospheric pressure and ambient temperature (298 K) was conducted. Experimental results indicated that the oxidative efficiency of Hg0 increased with O2 content, the residence time of flue gas in reactor and the applied voltage. The oxidation efficiency of Hg0 reached over 96% under the applied voltage of 11 kV and the residence time of 0.24 s when the O2 content in flue gas was 20%, and the corresponding energy efficiency was at about 14.1 μg kJ-1. It was noted that the oxidation efficiency of Hg0 could still reach 80% when the O2 content in flue gas was only 4% (near the actual O2 content in flue gas of coal-fired boilers). The experimental results indicated that DBD plasma was one of the efficient technologies for purification of Hg0 vapor industrial flue gas.

Removal of Elemental Mercury by Gas Phase Surface Discharge Plasma

2012 ◽  
Vol 518-523 ◽  
pp. 2732-2735
Author(s):  
Yu Ze Jiang ◽  
Jiu Tao An ◽  
Na Lu ◽  
Jie Li ◽  
Yan Wu
Keyword(s):  
Gas Phase ◽  
Applied Voltage ◽  
Discharge Plasma ◽  
Elemental Mercury ◽  
Reactive Species ◽  
Reactor System ◽  
Surface Discharge ◽  
Operational Parameters ◽  
Phase Surface ◽  
Oxidation Efficiency

The removal of elemental mercury (Hg0) with the reactive species produced by gas phase surface discharge plasma was studied. The effects of several operational parameters, such as applied voltage, inlet Hg0concentration and gas humidity, were investigated. The removal of Hg0was significantly promoted by an increase in the applied voltage of the reactor system. Hg0oxidation efficiency decreases with increasing inlet Hg0concentration. Furthermore, with the addition of H2O, Hg0oxidation is remarkably restrained.

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