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The effects of UV-Fenton preoxidation on the biodegradability of several phenolic wastewaters were investigated based on the ratio of BOD5/COD. The results showed that the BOD5/COD ratios of phenol, hydroquinone, 2-chlorophenol and coal-gas phenolic wastewater were less than 0.30, except for phenol in moderate concentration of 300mg/L, which mean that the phenolic wastewaters were difficultly biodegradable...
In this paper, pretreating p-tertt-butylphenol formaldehyde resin synthesized wastewater has been carried out by the combined techniques of the ferric-carbon micro-electrolysis (abbreviated as FCME) and the Fenton reaction. The result shows that when the COD of the wastewater is between 3350~8370mg/L, pH=2.0 and the reaction time of FCME is 120 minute, the removal of COD is above 48% though the FCME...
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