On the applicability of a hybrid bioreactor operated with polymeric tubing for the biological treatment of saline wastewater
| Autor: | Andrew J. Daugulis, Domenica Mosca Angelucci, M. Concetta Tomei, Valentina Stazi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
Sodium 0211 other engineering and technologies chemistry.chemical_element Salt (chemistry) 02 engineering and technology polymer tubing 010501 environmental sciences 01 natural sciences selective mass transfer Mass transfer saline wastewater Bioreactor Environmental Chemistry biological treatment Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification 021110 strategic defence & security studies Chromatography Chemistry continuous two-phase partitioning bioreactor hybrid bioreactors Polymer Contamination Biodegradation Pollution Wastewater |
| Zdroj: | Science of the total environment 599-600 (2017): 1056–1063. doi:10.1016/j.scitotenv.2017.05.042 info:cnr-pdr/source/autori:Tomei, M Concetta; Mosca Angelucci, Domenica; Stazi, Valentina; Daugulis, Andrew J/titolo:On the applicability of a hybrid bioreactor operated with polymeric tubing for the biological treatment of saline wastewater./doi:10.1016%2Fj.scitotenv.2017.05.042/rivista:Science of the total environment/anno:2017/pagina_da:1056/pagina_a:1063/intervallo_pagine:1056–1063/volume:599-600 |
| ISSN: | 0048-9697 |
| Popis: | Effective biological treatment of high salt content wastewater requires consideration of both salt and organic toxicity. This study treated a synthetic saline wastewater containing NaCl (100gL-1) and 2,4-dimethylphenol (1.2gL-1) with a hybrid system consisting of a biological reactor containing spiral-coiled polymeric tubing through which the mixed feed was pumped. The tubing wall was permeable to the organic contaminant, but not to the salt, which allowed transfer of the organic into the cell-containing bioreactor contents for degradation, while not exposing the cells to high salt concentrations. Different grades of DuPont Hytrel polymer were examined on the basis of organic affinity predictions and experimental partition and mass transfer tests. Hytrel G3548 tubing showed the highest permeability for 2,4-dimethylphenol while exerting an effective salt barrier, and was used to verify the feasibility of the proposed system. Very high organic removal (99% after just 5h of treatment) and effective biodegradation of the organic fraction of the wastewater (>90% at the end of the test) were observed. Complete salt separation from the microbial culture was also achieved. |
| Databáze: | OpenAIRE |
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