كاربرد كربن فعال در حذف رنگ پساب صنايع نساجي

This study has been carried out to investigate the effectiveness of activated carbon to remove the coloured Pollutant in a textile industry waste water. The two types of activated carbon, powder and granule, seem to be applicable for this study. The results showed that the activated carbon adsorb quickly the acidic calours. The removal efficiency of 88% has obtained in the first 3 hours by adding two grams per liter of activated carbon. The degree of detention Time has reduced by decreasing pH from 13 to 7 and to 1. Different percentage are removal were 16% (in 3 hours) 88% (in 3 hours) and 1% (in 1 hour). Heat and biological treatment had not significant effect on colour removal. N everth less, the above two mentioned factor in association with activated carbon reduced BOO, COD and removed the colours. The concentration of the colours waste-water decreased from 30 mg/1 to 1.5 mg/1 by using calumn of activated carbon.