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| Titel: |
Iron dependent degradation of an isothiazolone biocide (5-chloro-2-methyl-4-isothiazolin-3-one) |
| Auteur: |
Tanji, Y. Nishihara, T. Miyanaga, K. |
| Verschenen in: |
Biofouling |
| Paginering: | Jaargang 23 (2007) nr. 2 pagina's 73-77 |
| Jaar: |
2007-03 |
| Inhoud: |
An isothiazolone biocide, 5-chloro-2-methyl-4-isothiazolin-3-one (CMI), was degraded in the presence of iron. According to the Fe-dependent degradation of CMI, stoichiometric production of chloride was observed. Copper and stainless steel did not enhance the physico-chemical degradation of CMI, whilst phosphate inhibited the Fe-dependent degradation. Neither aerobic nor anaerobic conditions influenced the Fe-dependent CMI degradation. Furthermore, FeO(OH)-powder and Fe3O4-powder did not lead to the physico-chemical degradation of CMI. Rapid disappearance of CMI was observed in an operating cooling water plant. CMI added to the cooling tower declined from 1.4 mg l-1 to < 0.1 mg l-1 in 2 d. This finding is important in optimising the use of CMI and combating resistance if encountered. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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