Purified Terephthalic Acid Wastewater Treatment Using Modified Two-Stage UASB Bioreactor Systems
| Autor: | Burçin Karabey, Guven Ozdemir, Nuri Azbar, Tayyibe Alpay |
|---|---|
| Přispěvatelé: | Ege Üniversitesi |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Acidogenesis
Hydraulic retention time Phthalic Acids Applied Microbiology and Biotechnology Microbiology Waste Disposal Fluid Water Purification 03 medical and health sciences chemistry.chemical_compound Bioreactors RNA Ribosomal 16S Bioreactor Anaerobiosis Phylogeny 030304 developmental biology Terephthalic acid 0303 health sciences Chromatography biology Bacteria Sewage 030306 microbiology Microbiota General Medicine biology.organism_classification Methanogen Archaea Biodegradation Environmental Wastewater chemistry Methanomicrobiales Methane Water Pollutants Chemical Waste disposal |
| Popis: | Microbial community dynamics and PTA wastewater degradation performance of sequentially connected two-stage upflow anaerobic sludge blanket (UASB) bioreactors have been studied for 225 days. the working volume of acidogenic (R1) and methanogenic reactors (R2) have sixfold differences. Thus, the reactors operated under different hydraulic retention time (HRT) conditions, which are preferential for PTA wastewater content. Archeal and bacterial profiles of granules were analyzed with denaturing gradient gel electrophoresis (DGGE) and real-time quantitative PCR (Q-PCR) techniques. According to high-pressure liquid chromatography (HPLC) results, 4-Carboxybenzaldehyde (4-CBA) and acetic acid (AA) completely degraded in the first stage, whereas terephthalate (TA) and p-toluic acid (p-TA) degradation ratios were 90% and 47% in the second stage, respectively. the methane content of the UASB reactor was determined as 76% by gas chromatography (GC) analysis. Microbial community analysis indicated that the members of hydrogenotrophic methanogen groups Methanobacteriales and Methanomicrobiales were dominantly responsible for methane production throughout the process. Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113Y002]; Ege University Scientific Research FundEge University [2013FEN08]; Ege University Science and Technology CenterEge University [2014-BIL-007] The authors wish to thank the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant No. 113Y002 for the financial support of this study. the data presented in this article was produced within the project above; however, it is only the authors of this article who are responsible for the results and discussions made herein. the authors also wish to thank Ege University Scientific Research Fund under the Grant No. 2013FEN08 and Ege University Science and Technology Center (Grant No: 2014-BIL-007) for the financial support of this study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|