Abstract
Phenol is one of major pollutants in industrial wastewater with high remediation priority. In this study, the role of membrane in phenol degradation in high-phenol-fed MBR (membrane bioreactor) was explored. Phenol elimination in high-phenol-fed MBRs resulted in complete mineralization and the high-phenol-fed MBR exhibited greater biomass-specific phenol removal rates (0.4-1.5 mg phenol/(mgVSS·d) than the low-phenol-fed MBR. In the high-phenol-fed MBR, filamentous non-settling microbes were more abundant than in the low-phenol-fed MBR. In the following batch experiment, high-acclimated and non-settling microbes were separately collected from the high-phenol-acclimated bioreactor, and their specific phenol degradation was determined at 5.1 mg phenol/(mgVSS·d). The greater specific phenol degradation rate of the non-settling microbes than the observed phenol elimination rate in the high-phenol-fed MBR indicates that the high-phenol-acclimated and non-settling microbes had greater degradation activity than the rest of sludge microbes in the bioreactor. According to these findings, the role of membrane in the high-phenol-fed MBR was identified as the containment of non-settling and biodegradative microbes in bioreactor, and in turn, the membrane-driven increase of non-settling phenol degrading microbes enhanced phenol elimination in the high-phenol-fed MBR.
| Original language | English |
|---|---|
| Pages (from-to) | 320-325 |
| Number of pages | 6 |
| Journal | Desalination and Water Treatment |
| Volume | 31 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2011 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Water Science and Technology
- Ocean Engineering
- Pollution
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Improved phenol degradation in high-phenol-fed MBR by membrane-driven containment of non-settling biodegradation microbes. / Ahn, Soojeung; Song, Insang; Choung, Younkyoo; Park, Joonhong.
In: Desalination and Water Treatment, Vol. 31, No. 1-3, 01.01.2011, p. 320-325.Research output: Contribution to journal › Article
TY - JOUR
T1 - Improved phenol degradation in high-phenol-fed MBR by membrane-driven containment of non-settling biodegradation microbes
AU - Ahn, Soojeung
AU - Song, Insang
AU - Choung, Younkyoo
AU - Park, Joonhong
PY - 2011/1/1
Y1 - 2011/1/1
N2 - Phenol is one of major pollutants in industrial wastewater with high remediation priority. In this study, the role of membrane in phenol degradation in high-phenol-fed MBR (membrane bioreactor) was explored. Phenol elimination in high-phenol-fed MBRs resulted in complete mineralization and the high-phenol-fed MBR exhibited greater biomass-specific phenol removal rates (0.4-1.5 mg phenol/(mgVSS·d) than the low-phenol-fed MBR. In the high-phenol-fed MBR, filamentous non-settling microbes were more abundant than in the low-phenol-fed MBR. In the following batch experiment, high-acclimated and non-settling microbes were separately collected from the high-phenol-acclimated bioreactor, and their specific phenol degradation was determined at 5.1 mg phenol/(mgVSS·d). The greater specific phenol degradation rate of the non-settling microbes than the observed phenol elimination rate in the high-phenol-fed MBR indicates that the high-phenol-acclimated and non-settling microbes had greater degradation activity than the rest of sludge microbes in the bioreactor. According to these findings, the role of membrane in the high-phenol-fed MBR was identified as the containment of non-settling and biodegradative microbes in bioreactor, and in turn, the membrane-driven increase of non-settling phenol degrading microbes enhanced phenol elimination in the high-phenol-fed MBR.
AB - Phenol is one of major pollutants in industrial wastewater with high remediation priority. In this study, the role of membrane in phenol degradation in high-phenol-fed MBR (membrane bioreactor) was explored. Phenol elimination in high-phenol-fed MBRs resulted in complete mineralization and the high-phenol-fed MBR exhibited greater biomass-specific phenol removal rates (0.4-1.5 mg phenol/(mgVSS·d) than the low-phenol-fed MBR. In the high-phenol-fed MBR, filamentous non-settling microbes were more abundant than in the low-phenol-fed MBR. In the following batch experiment, high-acclimated and non-settling microbes were separately collected from the high-phenol-acclimated bioreactor, and their specific phenol degradation was determined at 5.1 mg phenol/(mgVSS·d). The greater specific phenol degradation rate of the non-settling microbes than the observed phenol elimination rate in the high-phenol-fed MBR indicates that the high-phenol-acclimated and non-settling microbes had greater degradation activity than the rest of sludge microbes in the bioreactor. According to these findings, the role of membrane in the high-phenol-fed MBR was identified as the containment of non-settling and biodegradative microbes in bioreactor, and in turn, the membrane-driven increase of non-settling phenol degrading microbes enhanced phenol elimination in the high-phenol-fed MBR.
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U2 - 10.5004/dwt.2011.2387
DO - 10.5004/dwt.2011.2387
M3 - Article
VL - 31
SP - 320
EP - 325
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
SN - 1944-3994
IS - 1-3
ER -