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Efficiency of Chemical Treatments on Reduction of COD and Turbidity of Deinked Pulp Waste Water

Shademan Pourmousa1 * and Somayeh Soltani Paraftabi2

1 Department of Wood and Paper Science and Technology, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran

2 Department of Environment Science, Science and Reseaech Branch, Islamic Azad University, Sistan and Baluchistan, Zahedan, Iran

DOI: http://dx.doi.org/10.12944/CWE.8.3.09

The effect of poly aluminum chloride with cationic or anionic polymers in treatment of deinked waste water has been studied. The experiments were carried out in jar tests with poly aluminum chloride dosages range of 5-20 mg/l, cationic or anionic polymers dosages range of 1-3 mg/l, pH range of 7.2-8.2, rapid mixing at 100rpm for 2minute, followed by slow mixing at 40 rpm for 10minute and settling for 20minute. The effectiveness of poly aluminum chloride with cationic or anionic polymers were measured based on reduction of turbidity and chemical oxygen demand. The combination of poly aluminum chloride with cationic or anionic polymers is found to give the increase efficiency of purification in the treatment of the deinked waste waters.it can achieve almost66.82 % of turbidity and 63.04 %ofchemical oxygen demand reduction at an optimum dosage of 15mg/l poly aluminum chloride with 3mg/l cationic polymers andpH of 8.2.Theresult suggests that the waste water purified can be used for internal process applications but for injection it to environments goals can be passed biological treatments.

Deinked Waste Water; Chemical Treatment; Turbidity; Chemical Oxygen Demand; Efficiency

Copy the following to cite this article:

Pourmousa S, Paraftabi S. S. Efficiency of Chemical Treatments on Reduction of COD and Turbidity of Deinked Pulp Waste Water. Curr World Environ 2013;8(3) DOI:http://dx.doi.org/10.12944/CWE.8.3.09

Copy the following to cite this URL:

Pourmousa S, Paraftabi S. S. Efficiency of Chemical Treatments on Reduction of COD and Turbidity of Deinked Pulp Waste Water. Curr World Environ 2013;8(3). Available from: http://www.cwejournal.org/?p=5208

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