APPLICATION OF NOVEL PDMS PHASE INVERSION MEMBRANE IN EXTRACTIVE MEMBRANE BIOREACTOR

REN Long-fei; XU Yu-bo; SHAO Jia-hui

doi:10.13205/j.hjgc.202107017

Volume 39 Issue 7

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(7): 133-138

REN Long-fei, XU Yu-bo, SHAO Jia-hui. APPLICATION OF NOVEL PDMS PHASE INVERSION MEMBRANE IN EXTRACTIVE MEMBRANE BIOREACTOR[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 133-138. doi: 10.13205/j.hjgc.202107017

Citation:

REN Long-fei, XU Yu-bo, SHAO Jia-hui. APPLICATION OF NOVEL PDMS PHASE INVERSION MEMBRANE IN EXTRACTIVE MEMBRANE BIOREACTOR[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 133-138. doi: 10.13205/j.hjgc.202107017

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APPLICATION OF NOVEL PDMS PHASE INVERSION MEMBRANE IN EXTRACTIVE MEMBRANE BIOREACTOR

doi: 10.13205/j.hjgc.202107017

School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received Date: 2021-01-11
Available Online: 2022-01-18

Abstract

Abstract

Extractive membrane bioreactor(EMBR) is an effective method to treat the refractory phenol saline wastewater, which could separate the phenol saline wastewater into low concentration phenol wastewater. Aimed to solve the issue of low phenol transmembrane mass transfer rate of silicone rubber tube in EMBR, novel polydimethylsiloxane(PDMS) membrane was developed in this study using phase inversion method, which could simultaneously achieve high phenol transmembrane mass transfer and high NaCl rejection. Effects of flow rate, pH and temperature in wastewater and bioreactor on phenol separation and NaCl rejection were investigated to optimize the operation condition of EMBR. Effects of microorganisms on phenol degradation and transmembrane mass transfer were also investigated.Resultsshowed that the optimal conditions for wastewater and bioreactor were flow rates of 0.17 L/h and 0.17 L/h, pH values of 5.1 and 5.75, temperatures of 34℃ and 30℃, respectively. After addition of sludge, transmembrane phenol mass transfer coefficients of 4.0×10^-7~4.3×10^-7 m/s, phenol removal efficiencies around 100% and NaCl rejection efficiencies above 99.9% could be achieved in this EMBR. This study was beneficial in solving the key problems in application and popularization of EMBR, and was of great importance in the pollution treatment of water environment and security guarantee of water resource.
- phenol saline wastewater,
- extractive membrane bioreactor,
- polydimethylsiloxane,
- phase inversion membrane,
- transmembrane mass transfer

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References(14)

References

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