Abstract
Printing and dyeing wastewater contained difficult biochemical degradation of organic matters. It required advanced treatment after the biochemical treatment. In this paper, effeccts of pH, the amount of iron and hydrogen peroxide, the ratio of iron and hydrogen peroxide and reaction time on the Fe0-H2O2system were studied. The results showed that all the above factors were important to dyeing waste water treatment by Fe0-H2O2system. CODCrremoval efficiency could archive 65% when the initial pH was 3, the iron powder capacity was 1.5g/L,the volume of hydrogen peroxide was 1ml/L, the reaction time was 40 min and the temperature was 30°C.
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