Application of ozone-activated carbon advanced treatment in removing odor in drinking water plants
Conventional drinking water treatment technology has limited capacity in dealing with water odor problems.Experiments were conducted using activated carbon adsorption and ozonation to remove odor pollutants such as geosmin,dimethyl isobutyl ketone,isophorone,ionone,and citral in water.The results showed that at a dosage of 400 mg/L ac-tivated carbon,the removal effect was in the order of citral>geosmin>dimethyl isobutyl ke-tone>ionone>isophorone,with removal rates of over 80.00%.Under the condition of 1 mg/L ozonated oxidation,the removal effect was in the order of citral>isophorone>ionone>geosmin>dimethyl isobutyl ketone.Applying two processes to the site,a water treatment plant in the lower reaches of the Yellow River was retrofitted with an additional ozone-acti-vated carbon advanced treatment process.Through sampling and testing at different stages of the process and conventional water treatment,the changes in organic pollutant concentration and CODCr were analyzed.
万方数据
维普
