Alkylphenol polyethoxylate removal in a pilot-scale reed bed and phenotypic characterization of the aerobic heterotrophic community
| Autor: | Emilia Tiscione, Luca Messeri, Daniela Burrini, Anna Maria Pizzo, Cristiana Sacco, Massimo Del Bubba, Luciano Lepri |
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| Rok vydání: | 2006 |
| Předmět: |
Alkylphenol
Octoxynol Microorganism AEROBIC HETEROTROPHIC CULTIVATED COMMUNITY BIODEGRADATION CONSTRUCTED WETLANDS NON-IONIC SURFACTANTS REED BEDS TRITON X-100 REMOVAL Heterotroph Pilot Projects Reed bed Waste Disposal Fluid Surface-Active Agents Residence Characteristics Pseudomonas Environmental Chemistry Waste Management and Disposal Water Science and Technology biology Sewage Ecological Modeling Environmental engineering biology.organism_classification Pollution Environmental chemistry Aerobie Flavobacterium Water Pollutants Chemical Waste disposal |
| Zdroj: | Water environment research : a research publication of the Water Environment Federation. 78(7) |
| ISSN: | 1061-4303 |
| Popis: | The removal of the non-ionic surfactant Triton X-100, dosed at 30 and 300 mg/L in a pilot-scale subsurface horizontal flow reed bed, and the aerobic heterotrophic cultivable community associated with the roots and with the substrate gravel in both absence and presence of Triton X-100 were investigated. t-Octylphenol (OP) and its mono-, di- and tri-ethoxyl derivatives, among others, were found in the outlet. A mass balance allowed us to calculate that approximately 40% of the Triton X-100 metabolites OP and octylphenol polyethoxylate derivatives flowed out of the reed bed during the dosage and postdosage experiments. More aerobic heterotrophic microorganisms adhered to the roots than to the gravel. The appearance of new strains (Aeromonas, Flavobacterium, and Aquaspirillum) and the increased presence of others (Pseudomonas) during the dosage of Triton may be linked to the capacity of these bacteria to adapt to the presence of the surfactant or to use it as a nourishment. |
| Databáze: | OpenAIRE |
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