Organic compounds removal in soil in a seven-needle-to-net pulsed discharge plasma system |
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| Affiliation: | 1. College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China;3. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada;4. College of Science, Donghua University, 2999 North Renmin Road, Shanghai 201620, China |
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| Abstract: | A pulsed discharge plasma (PDP) system (a seven-needle-to-net electrode geometry) was built to degrade pyrene and p-nitrophenol in soil. Pulse discharge time, contents of the pollutants in the soil, the initial pH value of the soil, Kaolin and Cr6+ addition on removal of pollutants was investigated. The obtained results show that 60 min was the better treatment time; removal of organic compounds decreased with the increase of the contents; removal of pyrene was higher at neutral pH condition, while p-nitrophenol has more oxidation in the basic soil; Kaolin and Cr6+ addition has positive effect on the organic compounds degradation. |
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| Keywords: | Pulsed discharge plasma Soil remediation Pyrene p-nitrophenol Kaolin addition |
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