Biodegradation of organic chemicals at environmentally relevant concentrations
- 1. Institut fuer Meereskunde an der Univ. Kiel (Germany). Abt. Mikrobiologie
Description
In the estuary of the river Elbe as well as in the North and Baltic Sea, the mineralization of some chemicals in low concentrations by natural microbial communities in water and sediment samples was studied. The following substances were examined: 4-nitrophenol, 2-nitrophenol, phenol, diethylene glycole (DEG), ethylendiamine-tetraacetate (EDTA), thiourea (THIO), 4-chloraniline, 4-naphthalene-1,5-disulfonic acid (NDSS), 2,4,6-trichlorphenol (TCP) and tetrapropylenebenzenesulfonic acid (TPBS). The three first phenolic substances can be biodegraded relatively easy in eutrophicated or already chemically polluted aquatic habitats. In marine habitats there was either no degradation of these substances of it was slow, incomplete or an acclimation period was observed. DEG, THIO and chloraniline often showed longer turnover times at different stations than the phenols. The biodegradability of these substances differed strongly between habitats. EDTA was not mineralized for more than 20%. NDSS, TCP and TPBS were not degraded by natural microbial communities. (orig.). 86 refs., 14 tabs., 38 figs
Availability note (English)
Available from FIZ Karlsruhe.Abstract (German)
Im Elbeaestuar, sowie in der Nord- und der Ostsee wurde die Abbaubarkeit folgender Fremdstoffe in niedrigen Konzentrationen durch natuerliche Bakterienpopulationen im Wasser und im Sediment untersucht: 4-Nitrophenol, 2-Nitrophenol, Phenol, Diethylenglycol (DEG), Ethylendiamintetraacetat (EDTA), Thioharnstoff (THIO), Chloranilin, 2,4,6-Trichlorphenol (TCP), 4-Naphthalin-1, 5-disulfonsaeure (NDSS) und Tetrapropylenbenzolsulfonat (TPBS). Die drei ersten phenolischen Verbindungen konnten durch Bakterien aus eutrophierten oder bereits durch Chemikalien belasteten Gewaessern relativ rasch und vollstaendig abgebaut werden. In marinen Biotopen war entweder keine Umsetzung dieser Substanzen zu beobachten, oder der Abbau lief unvollstaendig und langsam ab. Fuer DEG, THIO und Chloranilin konnten bei den einzelnen Stationen haeufig laengere Umsetzungszeitraeume gemessen werden als fuer die Phenole. Die Abbaubarkeit dieser Substanzen schwankte stark von Biotop zu Biotop. EDTA wurde nur zu max. 20% mineralisiert. NDSS, TCP und TPBS konnten nicht von natuerlichen Bakterienpopulationen abgebaut werden. (orig.)Additional details
Additional titles
- Original title (German)
- Pruefung der biologischen Abbaubarkeit von organischen Chemikalien im umweltrelevanten Konzentrationsbereich
Publishing Information
- Imprint Pagination
- 185 p.
- Journal Volume
- 33/92
- Series
- Umweltbundesamt. Texte.
- ISSN
- 0722-186X
- Report number
- UBA-FB--91-055
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 25061563
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BACTERIA; BALTIC SEA; BIODEGRADATION; ECOLOGICAL CONCENTRATION; EDTA; ESTUARIES; GLYCOLS; NORTH SEA; PHENOLS; POLLUTANTS; RIVERS; SULFONATES; SULFONIC ACIDS; THIOUREA; WATER POLLUTION
- Descriptors DEC
- ALCOHOLS; AMINO ACIDS; ANTITHYROID DRUGS; AROMATICS; ATLANTIC OCEAN; CARBONIC ACID DERIVATIVES; CARBOXYLIC ACIDS; CHELATING AGENTS; CHEMICAL REACTIONS; COASTAL WATERS; DECOMPOSITION; DRUGS; HYDROXY COMPOUNDS; MICROORGANISMS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; POLLUTION; SEAS; SURFACE WATERS; THIOUREAS
Optional Information
- Contract/Grant/Project number
- Contract UFOPLAN 10602051
- Funding organization
- Bundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany).