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Yeasts recovered in tannery wastes: candidates for decontamination?
Field and laboratory investigations were carried out in Fès, Morocco to identify yeasts growing in river waters contaminated with tannery wastes and to determine if one or several yeast species are possible candidates to remove chromium and polyphenols present in such wastes. Samples of river water were collected from 22 sites contaminated with tannery wastes and four sites not polluted with tannery wastes. Fifteen yeast species were identified in the sites polluted with tannery wastes and Debaryomyces hansenii was the major species. High values of electrical conductivity, inorganic and organic matter in suspension, salinity, ammonium ions, chlorides, chromium, nitrates, sulphates and polyphenols were found in waters collected from these sites. By contrast, in the four sites not polluted with tannery wastes, 14 yeast species were identified and five belonged to the Candida genus. D. hansenii was not recovered in these last sites. Because of its high frequency in waters polluted with tannery wastes, the ability of D. hansenii to remove the main polluting agents (chromium and/or polyphenols) from tannery wastes in a Mediterranean climate should be tested.
Yeasts recovered in tannery wastes: candidates for decontamination?
Field and laboratory investigations were carried out in Fès, Morocco to identify yeasts growing in river waters contaminated with tannery wastes and to determine if one or several yeast species are possible candidates to remove chromium and polyphenols present in such wastes. Samples of river water were collected from 22 sites contaminated with tannery wastes and four sites not polluted with tannery wastes. Fifteen yeast species were identified in the sites polluted with tannery wastes and Debaryomyces hansenii was the major species. High values of electrical conductivity, inorganic and organic matter in suspension, salinity, ammonium ions, chlorides, chromium, nitrates, sulphates and polyphenols were found in waters collected from these sites. By contrast, in the four sites not polluted with tannery wastes, 14 yeast species were identified and five belonged to the Candida genus. D. hansenii was not recovered in these last sites. Because of its high frequency in waters polluted with tannery wastes, the ability of D. hansenii to remove the main polluting agents (chromium and/or polyphenols) from tannery wastes in a Mediterranean climate should be tested.
Yeasts recovered in tannery wastes: candidates for decontamination?
Goumghar, MD (author) / Dreyfuss, G (author) / Cabaret, J (author) / Rondelaud, D (author) / Benlemlih, M (author)
Urban Water Journal ; 2 ; 59-63
2005-03-01
5 pages
Article (Journal)
Electronic Resource
Unknown
Chromium , Morocco , Polyphenols , Tannery wastes , Yeasts
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