A Study on The Effect of Type of Solvent on Chitosan Efficiency for Treatment of Drinking Water Contaminations | ||||
| Egyptian Journal of Chemistry | ||||
| Article 5, Volume 57, Issue 4, August 2014, Page 327-341 PDF (629.27 K) | ||||
| DOI: 10.21608/ejchem.2014.1056 | ||||
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| Abstract | ||||
| IN this research, chitosan (Ch) a natural polymer, was employed in drinking raw water treatment of Nile River against Escherichia coli via simple method, it is dissolution of chitosan in three different solvents;acetic acid (AC),malonic acid (MA) and N carboxymethyl N,N diethylbenzene ammonium chloride (CMEBAC) to produce three different solutions; Ch-AC, Ch-MA and Ch-CMEBAC, respectively. These solutions were characterized by FTIR and elemental analysis. The investigations of their effect against total coliform bacteria of raw water were carried out according to method of Most Probable Number (MPN) at different contact times (30, 60 and 120 min). The results showed that the full inhibition of total coliform were achieved after 30 min as contact time by 7 gm L-1 ml of Ch-Ac , 5 gm L-1 of Ch-Ma and 0.75 gm L-1 ml of Ch-CMEBAC. Otherwise, by increasing of contact time, the volumes of inhibitors (chitosan solutions) decrease.The minimum inhibitory concentration (MIC) values of those solutions were detected as 2.75, 2 and 0.2 μ/ml , respectively. | ||||
| Keywords | ||||
| Chitosan; E.coli; Biological treatment of water and Malonic acid | ||||
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