Research on the Teamwork of Sludge Conditioner and Organic Macromolecular Flocculants on Dewater Ability of Activated Sludge

Associate sludge conditioner with organic macromolecular flocculants on activated sludge’s dewatering for their positive and negative efforts on dewater ability of activated sludge.Adding different dosages of conditioner and flocculants in activated sludge,the influences of these two agents on some sludge floc characteristics and the dewatering indexes was studied.Experimental results indicated that the water content in the remaining sludge cake after filtration is decreased to 75.41 % by adding 1 % of the conditioner and 0.5 % of flocculants,this addition results was sludge filtration improved.Due to the addition of conditioner,the characteristics of sludge flocs changed,primarily changes in the EPS distribution,improvements on dewater abilities of sludge and decreased in the floc size.After that,the addition of organic macromolecular flocculants makes the new flocculation of sludge which enhances the rate of dehydration.