環境工学研究論文集
Online ISSN : 1884-829X
Print ISSN : 1341-5115
ISSN-L : 1341-5115
ウイルスのアルミニウム系凝集剤への不可逆的吸着
松下 拓小塚 信幸中務 誠角田 裕樹松井 佳彦
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2005 年 42 巻 p. 463-468

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In order to investigate the change in the infectivity of virus (bacteriophage Qβ) after dosing of polyaluminum coagulant (PACl), virus concentrations were measured by plaque forming unit (PFU) method and polymerase chain reaction (PCR) method after dissolving aluminum floc which had been formed during coagulation process and would have adsorbed/entrapped virus. The drop of infectious virus concentration after coagulation could not be explained by simple aggregation of infectious virus particles alone, suggesting that the loss of infectivity of virus caused by the PAC1 could partly account for the drop. The irreversible adhesion of virus to the polyaluminum species was enhanced by adding NaCl, MgCl2 and CaCl2 to the virus containing water before dosing PACl, while it was reduced by adding NaHCO3. The addition of NaCl, MgCl2 and CaCl2 decreased the surface charge of the virus so that they might decrease the irreversible adhesion. NaHCO3 increased the surface charge of the virus, and this might decrease the irreversible adhesion.

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