Journal of Polymer and Biopolymer Physics Chemistry
ISSN (Print): 2373-3403 ISSN (Online): 2373-3411 Website: https://www.sciepub.com/journal/jpbpc Editor-in-chief: Martin Alberto Masuelli
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Journal of Polymer and Biopolymer Physics Chemistry. 2013, 1(1), 22-25
DOI: 10.12691/jpbpc-1-1-4
Open AccessArticle

Reduction of COD and Color by Polymeric Coagulant (Chitosan)

Ram Krishna1 and Omprakash Sahu1,

1Department of Chemical Engineering, ITGGV, Bilaspur (C.G.), India

Pub. Date: December 15, 2013

Cite this paper:
Ram Krishna and Omprakash Sahu. Reduction of COD and Color by Polymeric Coagulant (Chitosan). Journal of Polymer and Biopolymer Physics Chemistry. 2013; 1(1):22-25. doi: 10.12691/jpbpc-1-1-4

Abstract

Wastewater treatment is becoming ever more critical due to diminishing water resources, increasing wastewater disposal costs, and stricter discharge regulations that have lowered permissible contaminant levels in waste streams. The ultimate goal of wastewater management is the protection of the environment in a manner commensurate with public health and socio-economic concerns. The aim of our study is to use natural occurring polymeric coagulant to reduce the chemical oxygen demand and color from the industrial waste water. It was found that 83% of Chemical oxygen demand and 90% of color reduction was observed with chitosan.

Keywords:
coagulation filtration polymeric coagulant settling

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References:

[1]  Crittenden, J.C., Trussel, R.R., Hand, D. W., Howe, K. J., Tchobanoglous, G. (eds) “Coagulation, mixing and flocculation”, in Water Treatment: Principles and Design. 2nd edition, John Wiley & Sons, 2005, New Jersey, USA.
 
[2]  Duan, J., Gregory, J., Coagulation by hydrolysing metal salts, Advances in Colloid & Interface Science, Vol. 100-102, 2003, pp. 475-502.
 
[3]  Jiang J., Development of coagulation theory and pre-polymerised coagulants for water treatment, Separation and Purification Methods, Vol. 30, No. 1, 2001, pp. 127-141.
 
[4]  Bi, S., Wang, C., Cao, Q. and Zhang, C., Studies on the mechanism of hydrolysis and polymerization of aluminium salts in aqueous solution: correlations between the Core-links model and Cage-like keggin-Al13 model, Coordination Chemistry Reviews, Vol. 248, 2004, 441-455.
 
[5]  Jia, Z., He, F. and Liu, Z., Synthesis of polyaluminum chloride with a membrane reactor: operating parameter effects and reaction pathways, Ind Chem Res, Vol. 43, 2004, 12-17.
 
[6]  Bertsch, P.M., Grant, W. T., Barnhisel, L., Characterization of hydroxyl-aluminum solutions by aluminium-27 Nuclear Magnetic Resonance Spectroscopy, Soil Science Society of America Journal, Vol. 50, 1986, pp. 825-829.
 
[7]  Wang, M. and Muhammed, M., Novel synthesis of Al13-cluster based alumina materials, NanoStructured Materials, Vol. 11, 1999, 1219-1229.
 
[8]  Parker, D. R. and Bertsch, P. M, Formation of the Al13 tridecameric polycation under diverse synthesis conditions, Environmental Science and Technology, Vol. 26, 1992, pp. 914-921.
 
[9]  Dulko, J. M., Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions, United States Patent 5.985.234, 1999.
 
[10]  Graham N., Preparation and uses of polyferric sulphate, US Patent 5.785.862, 1998.
 
[11]  Bertsch, P.M., Conditions for Al13 polymer formation in partially neutralized aluminum solutions, Soil Science Society of America Journal, Vol. 51, 1987, pp. 825-828.
 
[12]  Tang H. X, Tian B. Z., Luan Z. K., Zhang Y., Inorganic polymer flocculant polyferric chloride, its properties, efficiency and production, In Chemical Water and Wastewater treatment, Vol III, eds R. Klute and H. Hahn, Springer, Berlin, 1994, pp. 57-69.
 
[13]  Zhang, P., Hahn, H.H., Hoffmann, E., Zeng, G., Influence of some additives to aluminium species distribution in aluminium coagulants, Chemosphere, 57, 2004, pp. 1489-1494.
 
[14]  Zouboulis A. I., Moussas P.A., Vasilakou F., Polyferric Sulphate: Preparation, characterization and application in coagulation experiments, submitted for publication in Journal of Hazardous Materials, 2007.
 
[15]  AWWA, AWWA standard for liquid polyaluminum chloride, American Water Works Association, Denver, Colorado USA, 1999.