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Date
2014
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Abstract
In this study, the settling behaviour of ceramic factory sludge containing suspended solid particles was investigated both by natural sedimentation and PAM flocculation. By natural sedimentation, the variation of time by interface height and turbidity were searched while by flocculation of PAM, the variation of time by sludge concentration, polymer dosage, turbidity, the change in molecular weight and charge were studied. Four anionic (4032, 4041, 4045, 4046), one cationic and one nonionic PAM were used for flocculation experiments. 10 mg/L polymer concentration, % 5 v/v sludge dosage and usage of low anionic PAM were determined to be the optimum conditions. Turbidity test showed that solid-liquid phase separation can be done with greater efficiency by PAM flocculation and therefore more clean water can be collected.