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Experimental Study on an Novel Environment-Friendly Coagulant for Treating Drinking Water

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DOI: 10.4236/ojcm.2012.23013    4,588 Downloads   8,294 Views  
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ABSTRACT

An environment-friendly composite coagulant for treating drinking water was prepared by using [Al 2 (OH) n Cl 6-n ]m?[Fe2 (OH) NCl6-N ]M (PAFC), chitosan (CTS) and modified starch (MS). It is called PCS. Results indicated that the best proportion of this coagulant was V (0.1%wt PAFC): V (0.001%wt CTS): V (3%wt modified starch) = 25:6:8. If compared with using traditional coagulant such as PAC, adding the novel coagulant, turbidity and the mass concentration of Al3+ in the water were decreased by 5.17% and 51.1% respectively. Rapid and slow stirring speed in Jar test were evaluated and they were founded to be slight influence. And neutral pH and room temperature allow up to 97.2% turbidity removal. Low coagulant doses reached high turbidity removal percentage, so this coagulant has obvious economic and environmental benefits.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

D. Zeng and W. Qin, "Experimental Study on an Novel Environment-Friendly Coagulant for Treating Drinking Water," Open Journal of Composite Materials, Vol. 2 No. 3, 2012, pp. 113-117. doi: 10.4236/ojcm.2012.23013.

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