Treatment of Hazardous Organic Wastes Using Silent Discharge Plasmas

Rosocha, Louis A.; Anderson, G. K.; Bechtold, L.A.; Coogan, J.J.; Heck, H.; Kang, Myung Koo; McCulla, W.H.; Tennant, R.A.; Wantuck, Paul J.

doi:10.1007/978-3-642-78476-7_21

Cited by 78 publications

(49 citation statements)

References 25 publications

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“…An exponential behavior for the VOC's removal by the pulsed corona reactor was found experimentally and was given as [15] ( 4) The dimensionless is the amount removed divided by the amount on input, where both amounts can be consistently expressed either in terms of or as concentration, e.g., mole fraction or parts per million. The parameter is the applied corona energy per unit volume and it will be shown now that is an apparent activation energy per unit volume for a mixture of a specific VOC plus air.…”

Section: Reactor Modelmentioning

confidence: 99%

Pulsed power corona discharges for air pollution control

Smulders

Heesch

Paasen

1998

IEEE Trans. Plasma Sci.

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Abstract-Successful introduction of pulsed corona for industrial purposes very much depends on the reliability of highvoltage and pulsed power technology and on the efficiency of energy transfer. In addition, it is of the utmost importance that adequate electromagnetic compatibility (EMC) is achieved between the high-voltage pulse source and the surrounding equipment.Pulsed corona is generated in a pilot unit that produces narrow 50 MW pulses at 1000 pps (net average corona power 1.5 kW). The pilot unit can run continuously for use in industrial applications such as cleaning of gases (100 m 3 /h) containing NO or volatile organic compounds (VOC's) or fluids (e.g., waste water). Simultaneous removal of NO and ethylene to obtain clean CO 2 from the exhaust of a combustion engine was tested at an industrial site.Various chemical processes, such as removal of toluene or styrene from an airflow are tested in the laboratory. We developed a model to analyze the conversion of these pollutants. To examine the discharges in the reactor we use current, voltage, and E-field sensors as well as a fast charge-coupled device (CCD) camera. Detailed energy input measurements are compared with CCD movies to investigate the efficiency of different streamer phases.EMC techniques incorporated in the pilot unit are based on the successful concept of constructing a low transfer impedance between common mode currents induced by pulsed power and differential mode voltages in signal lines and external main lines.

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Section: Reactor Modelmentioning

confidence: 99%

Pulsed power corona discharges for air pollution control

Smulders

Heesch

Paasen

1998

IEEE Trans. Plasma Sci.

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“…Our atmospheric microplasma is a type of dielectric barrier discharge (DBD) [22][23][24]. There are various types of microplasma.…”

Section: About Microplsamamentioning

confidence: 99%

Study of Sterilization and Disinfection in Room Air by Using Atmospheric Microplasma

Shimizu¹,

Komuro²,

Tatematsu³

et al. 2011

Pharm Anal Acta

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“…Consider humid, atmospheric pressure air; here the yields of O(3P), OH, and N radicals in typical electric-discharge reactors are of order 10, 1, and 1 per 100 eV of deposited energy, respectively [3]. For electron-beam reactors, the O(3P) yield is about one-third less, the yield of OH is roughly twice as large, and the yield of N is nearly 10 times larger than in discharge reactors [2, 41.…”

Section: 2-1 Radical Productionmentioning

confidence: 99%

The ozonizer discharge as a gas-phase advanced oxidation process

Rosocha¹

1997

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Because radical-attack reaction rate constants are very large for many chemical species, entrained ' pollutants are readily decomposed by radicals. Such plasmas can generate both oxidative and reductive radicals; therefore, they show promise for treating a wide variety of pollutants.Non-thermal plasmas are usehl for generating reactive species (free radicals) in a gas stream. INTRODUCTIONTo prevent toxic substances from entering and spreading through the environment and to meet increasingly stringent regulations, more effective methods of destroying chemical pollutants are being examined. Advanced oxidation processes [I], historically used for the treatment of recalcitrant water pollutants via oxidative hydroxyl radicals (OH), are now being applied to the decomposition of gasphase pollutants using non-thermal plasmas (NTPs). AOPs show particular promise for the treatment of hazardous and toxic pollutants (e.g., volatile hydrocarbons and halocarbons and oxides of sulfbr and nitrogen) because the reaction rates of free radicals with organic compounds can be orders of magnitude larger than a strong oxidizer like 0 3 .A non-thermalplasma (or non-equilibrium plasma) is characterized by electrons which are not in thermal equilibrium with the other gas species, i.e., hot electrons (few to tens of eV temperature) and cold neutral gas species and ions (near-ambient temperature). Such plasmas are good sources of

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Treatment of Hazardous Organic Wastes Using Silent Discharge Plasmas

Cited by 78 publications

References 25 publications

Pulsed power corona discharges for air pollution control

Pulsed power corona discharges for air pollution control

Study of Sterilization and Disinfection in Room Air by Using Atmospheric Microplasma

The ozonizer discharge as a gas-phase advanced oxidation process

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