[Oxidation of trichloroethylene in water with permanganate].
In order to investigate the removal ability of chlorinated hydrocarbons, the most widely existent pollutant trichloroethylene(TCE) was chosen as the aim pollutant, and the self-made permanganate solution was chosen as oxidant. When the oxidant concentration was 0.276 g x L(-1), the removal rate of TCE reached 100% at 30 degrees C within 30 min. The removal of TCE with permanganate followed the pseudo-first order kinetics with the reaction rate constant K(obs) was 0.1429 min(-1) and the half-life t1/2 was 4.85 min. The reaction rate constant of TCE was increased with increase of KMnO4 concentration and temperature, and almost not affected by pH and ionic strength.
Tian
Lu
L
Department of Water Resources and Environment, China University of Geosciences, Beijing 100083, China. tianlu_0613@126.com
Yang
Qi
Q
Shang
Hai-Tao
HT
Hao
Chun-Bo
CB
D010084:Oxidation-Reduction; D011196:Potassium Permanganate / Q000737:chemistry*; D014241:Trichloroethylene / Q000737:chemistry / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
D014874:Water Pollutants, Chemical; D011196:Potassium Permanganate; D014241:Trichloroethylene