Removal of Nonylphenol by Pulsed Corona Discharge in Water
نویسندگان
چکیده
Degradation of technical mixture of nonylphenol by the pulsed corona discharge in water has been investigated. It was shown that non-thermal plasma generated by the discharge can effectively remove nonylphenol from water. Degradation of nonylphenol followed first order kinetics. The removal efficiency was dependent on the solution conductivity, while a higher degree of degradation was obtained with higher conductivity. Oxidation of nonylphenol by OH radical attack was proposed as possible mechanism of degradation by the discharge in water.
منابع مشابه
Role of solution conductivity in the electron impact dissociation of H2O induced by plasma processes in the pulsed corona discharge in water
Effect of solution conductivity on production of H2O2, H2 and O2 generated by the pulsed corona discharge in water has been investigated. Hydrogen was dominant product of plasmachemical activity of the discharge when its formation significantly increased with increasing solution conductivity. Compared to H2O2 its production rose from ratio of 2:1 at 100 μS/cm up to 5:1 at 500 μS/cm. Possible ro...
متن کاملDetection of OH(AΣ) and O(D) Emission Spectrum Generated in a Pulsed Corona Plasma
We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of ...
متن کاملPulsed Corona Discharge, a New and Effective Technique for Water and Air Treatment
New technologies to solve environmental problems are in demand nowadays. Existing methods cannot always be used because they are too expensive, have unwanted byproducts or simply don't work. A new approach is to create active species in situ so transport losses can be avoided. Pulsed corona discharges is such a method. Its principle is that high energy electrons are created during the propagati...
متن کاملRole of energy input model on the remediation of the p-Nitrophenol contaminated over-wet soil by pulsed corona discharge plasma
Low-temperature plasma has exhibited high efficiency for fast remediation of organic-polluted soil with water content (less than 20%). In the present study, the feasibility of remediation of p-Nitrophenol (PNP) contaminated over-wet soil (water content of 100%) was studied using pulsed corona discharge plasma, which was generated in a needle-plate discharge reactor. Effect of energy input model...
متن کاملDegradation of Aqueous Phase Trichloroethylene Using Pulsed Corona Discharge
Pulsed corona discharge has been found to be an effective method for the removal of trichloroethylene (TCE) from the aqueous phase. Almost complete degradation over one hour was observed irrespective of the electrolyte used in the solution. The degradation rates observed in these experiments are higher than those for other organic compounds such as phenol in pulsed corona reactors, thereby sugg...
متن کامل