Microbial Processes of Heavy Metal Removal from Carbon-Deficient Effluents in Constructed Wetlands
| Autor: | Peter Kuschk, Matthias Kästner, Mikhail Vainshtein, A. Wießner, D.B. Kosolapov, A.V. Vatsourina, Roland A. Müller |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
geography Environmental Engineering geography.geographical_feature_category Volatilisation Sulfide Chemistry Environmental engineering Biosorption food and beverages Bioengineering Wetland Redox chemistry.chemical_compound Wastewater Environmental chemistry Sulfate Effluent Biotechnology |
| Zdroj: | Engineering in Life Sciences. 4:403-411 |
| ISSN: | 1618-2863 1618-0240 |
| DOI: | 10.1002/elsc.200420048 |
| Popis: | This paper reviews the main microbial processes involved when toxic metals are removed from wastewater in constructed wetlands. Microbial activity is thought to play a key role in the detoxification of these metals. The paper concentrates on the microbial processes which affect the mobility, the toxicity and bioavailability of metals, namely biosorption, metal sulfide precipitation by sulfate reducers, redox transformations, and methylation, as well as microbe-plant interactions. These reactions result in either the precipitation and accumulation of metals in wetland soils, or their volatilization and emission into the atmosphere. The possibilities of optimizing the microbially mediated reactions for the development of wetland technology are discussed as a long-term metal retention strategy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|