Degradation of microcystin in sediments at oxic and anoxic, denitrifying conditions

The potent toxin microcystin is frequently released during cyanobacterial blooms in eutrophic waters and may impose a risk to human health, when surface water is used for drinking water. For removal of microcystin in surface waters, infiltration through sediment is commonly used. In the present stud...

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Veröffentlicht in:	Water research (Oxford) 2003-11, Vol.37 (19), p.4748-4760
Hauptverfasser:	Holst, Thomas, Jørgensen, Niels O.G, Jørgensen, Claus, Johansen, Anders
Format:	Artikel
Sprache:	eng
Schlagworte:	Anoxic Applied sciences Biodegradation, Environmental Biological and physicochemical phenomena Carcinogens - metabolism Carcinogens - toxicity Cyanobacteria Degradation Denitrification Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Enzyme Inhibitors - metabolism Enzyme Inhibitors - toxicity Eutrophication Exact sciences and technology Geologic Sediments Microcystin Microcystins Natural water pollution Nitrogen - metabolism Nitrous Oxide - analysis Oxygen - analysis Peptides, Cyclic - metabolism Peptides, Cyclic - toxicity Pollution Pollution, environment geology PP1 assay Sediment Water Purification - methods Water treatment and pollution
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Zusammenfassung:	The potent toxin microcystin is frequently released during cyanobacterial blooms in eutrophic waters and may impose a risk to human health, when surface water is used for drinking water. For removal of microcystin in surface waters, infiltration through sediment is commonly used. In the present study, mineralization of 14C-labelled microcystin (accumulation of 14CO 2) and concentration changes (protein phosphatase inhibition assay) demonstrated that indigenous microorganisms in the sediment of a water recharge facility were capable of degrading microcystin. At oxic or microaerophilic (
ISSN:	0043-1354 1879-2448
DOI:	10.1016/S0043-1354(03)00413-5