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The ozonation of three organ phosphorus pesticides, malathion, diazinon and dimethoate, was conducted in water. The influence of the concentration of ozonated water, ozone action mode, degradation time and ion scavenger was discussed. The three organ phosphorus pesticides could bed gradated completely in 15min by bubbling ozone in water. And additional ion scavengers could increase the degradation...
Methyl tert-butyl ether (MTBE) is widely used gasoline oxygenate which has been recognized as a hazardous material with high risk of carcinogenesis by EPA ad RCRA. MTBE can contaminate groundwater and soil through leaking from oil products tanks in fuel farms or gas stations. Porous soils can be used to adsorb contaminants such as MTBE. The main objective of this research is to evaluate the effectiveness...
A new process of enhanced dissolved air floatation (DAF) by pulsed high voltage discharge was studied in this paper. With high voltage discharges, removal rate of some normal water quality indexes were better improved, such as UV254 and CODMn from 0.145 to 0.142 and from 6.2 mg/L to 5.8 mg/L. The turbidity of water after treated with pulsed high voltage discharges was larger than that without discharges...
Objective :A sensitive and accurate method has been developed for the determination of Dioxin by solid phase microextraction(SPME)coupled with gas chromatography and mass spectrometric detection(GC-MS). Method: Some factors influencing solid-phase microexaction(SPME) extraction efficiency such as extraction of time and temperature were studied. The result shows: with the extraction of time 30 min,...
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