Plasma Applications for Environmental Protection
Sourabh Bisht1, Bhaskar Nautiyal2, Upendra Mohan Bhatt3, Pankaj Joshi4
1Sourabh Bisht,  Deheradun, Uttarakhand, India.
2Upendra Mohan Bhatt, Deheradun, Uttarakhand, India.
3Bhaskar Nautiyal,  Deheradun, Uttarakhand, India.
4Pankaj Joshi,  Deheradun, Uttarakhand, India.
Manuscript received on May 26, 2014. | Revised Manuscript received on June 13, 2014. | Manuscript published on June 30, 2014. | PP: 77-81  | Volume-3, Issue-5, June 2014.  | Retrieval Number:  E3121063514/2013©BEIESP

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Abstract: Plasmas (both thermal and non-thermal) are known to be utilized for various environmental applications. These applications mostly include fields of air pollutant treatment, wastewater and drinking water decontamination, and thermal disposal of solid waste. The non-thermal plasmas used for environmental applications are mainly high-pressure discharges, such as DBDs, pulsed corona discharges, microwave plasmas, electron beams and dielectric packed bed reactors. An increasing number of investigations are devoted to the decomposition of nitrogen and sulphur oxides in flue gases, and of volatile organic compounds (VOC) emitted from various industrial processes. Many hazardous organic compounds are readily attacked by excited species, free radicals, electrons, ions and/or UV photons generated in DBDs. Moreover, investigations are going on to use dielectric barrier discharges (DBDs) for the generation of H2 and elemental sulphur from H2S and for the conversion of the greenhouse gases CO2 and CH4 to liquid fuels. The thermal plasmas mostly used for this purpose include several kinds of arcs.
Keywords: Corona Discharge, Dielectric Barrier Discharge, Ozonation.