Degradation of 4-CP in an internal electrolysis system

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The characteristic and mechanism of parachlorophenol (4-CP) degradation in an internal electrolysissystem were investigated. The degradation rate of 4-CP was higher in acid solution than that of in neutral or alkalinesolution. Addition of activated carbon could make 4-CP easier be degraded by the surface contact catalysis. Thedissolved oxygen in solution could take part in the electrode reaction and intensify the degradation of 4-CP. By theanalysis of intermediates of degradation of 4-CP, it could be conferred that 4-CP was broken through the bondbeside hydroxy firstly, then the bond beside chloride was broken and the chloride was dechlorinated simultaneously.Most intermediate products were glycerine, ethane diacid and acetic acid, while very few 1,4-butanedial andalcohols were found.
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