Dosage of chitosan flocculant influencing on sludge dewatering performance

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  • School of Resource and Environment Science, Wuhan University,Wuhan 430079, China

Received date: 2004-12-10

  Online published: 2010-10-01

Abstract

The effect of the dosage of flocculants on sludge dewatering is analyzed through the determination of sludge specific resistance to filtration. Sludge dewatering behaviors conditioned on AlCl3,CPAM,CTS and composite flocculants have been compared. The results show that all the flocculants have their optimum dosages. Neither over nor under the optimum dosage, the dewatering effect is good. The optimum dosages of AlCl3, CPAM,CTS are 35 g/L, 0.2 g/L, 10 g/L respectively. Compared with AlCl3, the dosage consumption of CPAM is much lower. Compared with CPAM, the dosage consumption of chitosan is bigger, when the same flocculation result is obtained. Combining CTS with AlCl3, the two-stage sludge conditioning is used to study the dewatering performance of the composite flocculant. Experiments show that combining CTS with AlCl3 improves the sludge dewatering performance largely

Cite this article

Zou Peng,Song Biyu,Wang Qiong . Dosage of chitosan flocculant influencing on sludge dewatering performance[J]. Industrial Water Treatment, 2005 , 25(5) : 35 -37 . DOI: 10.11894/1005-829x.2005.25(5).35

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