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Dewatering of Pulp and Paper Mill Sludge by Polymers

Aradhna Anand, Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, Haryana 125001; India. , Aradhna Anand1 , N.R. Bishnoi1 , Jigyasa Soni2

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Indian Journal of Waste Management 1(2):p 51-56, Jul-Dec 2017. | DOI: N/A

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Abstract

Dewatering of sludge of pulp and paper mill is investigated by the use of various organic and inorganic polymers in the present study. During the study it was found that cationic polymers areefficient in dewatering due to the negative nature of sludge. Nonionic and anionic polymers are relatively less effective. Inorganic polymers are effective in water release only at very high doses which is not cost efficient treatment. The best dewatering rate is achieved when cationic polymer (1kg/T) and Poly Aluminum Chloride (3kg/T) are used in combination whereas amongst cationic polymer, the best is C7115 followed by C5115 and C3115.

 

Keywords: Sludge; Cationic; Anionic; Dewatering; Polymer. 

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