Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment
Unconventional oil and gas extraction generates large quantities of produced water (PW). Due to strict environmental regulations, it is important to recover and reuse PW. In this study, commercial polyethersulfone (PES) ultrafiltration (UF) membranes were surface-modified with zwitterionic polymer 3...
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doaj-9f5d14fe41ce4fda82d4907ab2c525472020-11-25T02:16:52ZengMDPI AGWater2073-44412019-08-01118171010.3390/w11081710w11081710Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water PretreatmentMirjalal Babayev0Hongbo Du1Venkata S. V. Botlaguduru2Raghava R. Kommalapati3Center for Energy and Environmental Sustainability, Prairie View A&M University, Prairie View, TX 77446, USACenter for Energy and Environmental Sustainability, Prairie View A&M University, Prairie View, TX 77446, USACenter for Energy and Environmental Sustainability, Prairie View A&M University, Prairie View, TX 77446, USACenter for Energy and Environmental Sustainability, Prairie View A&M University, Prairie View, TX 77446, USAUnconventional oil and gas extraction generates large quantities of produced water (PW). Due to strict environmental regulations, it is important to recover and reuse PW. In this study, commercial polyethersulfone (PES) ultrafiltration (UF) membranes were surface-modified with zwitterionic polymer 3-(3,4-Dihydroxyphenyl)-<span style="font-variant: small-caps;">l</span>-alanine (<span style="font-variant: small-caps;">l</span>-DOPA) solution to alleviate membrane fouling during the ultrafiltration of shale oil PW of the Permian Basin. UF membranes were coated in <span style="font-variant: small-caps;">l</span>-DOPA solution by using a dip coating technique. Membrane characterization tests confirmed successful <span style="font-variant: small-caps;">l</span>-DOPA coating on UF membranes. While performing the experiments, permeate flux behaviors of the uncoated and coated membranes and antifouling resistance of the zwitterionic coating were evaluated. Among the coated UF membranes with varying coating times from one day to three days, the three-day coated UF membrane showed a good flux performance and the highest fouling resistance. The flux reduced by 38.4% for the uncoated membrane, while the reduction was 16% for the three-day coated membrane after the 5 h ultrafiltration of PW. Both improvements of the flux performance and recovery ratio are attributed to a negatively-charged surface developed on the membranes after the zwitterionic coating. The UF pretreatment also improved the flux behavior of the later forward osmosis (FO) process for PW treatment.https://www.mdpi.com/2073-4441/11/8/1710ultrafiltrationzwitterionic modificationhydrophilicityproduced water |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mirjalal Babayev Hongbo Du Venkata S. V. Botlaguduru Raghava R. Kommalapati |
spellingShingle |
Mirjalal Babayev Hongbo Du Venkata S. V. Botlaguduru Raghava R. Kommalapati Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment Water ultrafiltration zwitterionic modification hydrophilicity produced water |
author_facet |
Mirjalal Babayev Hongbo Du Venkata S. V. Botlaguduru Raghava R. Kommalapati |
author_sort |
Mirjalal Babayev |
title |
Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment |
title_short |
Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment |
title_full |
Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment |
title_fullStr |
Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment |
title_full_unstemmed |
Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment |
title_sort |
zwitterion-modified ultrafiltration membranes for permian basin produced water pretreatment |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2019-08-01 |
description |
Unconventional oil and gas extraction generates large quantities of produced water (PW). Due to strict environmental regulations, it is important to recover and reuse PW. In this study, commercial polyethersulfone (PES) ultrafiltration (UF) membranes were surface-modified with zwitterionic polymer 3-(3,4-Dihydroxyphenyl)-<span style="font-variant: small-caps;">l</span>-alanine (<span style="font-variant: small-caps;">l</span>-DOPA) solution to alleviate membrane fouling during the ultrafiltration of shale oil PW of the Permian Basin. UF membranes were coated in <span style="font-variant: small-caps;">l</span>-DOPA solution by using a dip coating technique. Membrane characterization tests confirmed successful <span style="font-variant: small-caps;">l</span>-DOPA coating on UF membranes. While performing the experiments, permeate flux behaviors of the uncoated and coated membranes and antifouling resistance of the zwitterionic coating were evaluated. Among the coated UF membranes with varying coating times from one day to three days, the three-day coated UF membrane showed a good flux performance and the highest fouling resistance. The flux reduced by 38.4% for the uncoated membrane, while the reduction was 16% for the three-day coated membrane after the 5 h ultrafiltration of PW. Both improvements of the flux performance and recovery ratio are attributed to a negatively-charged surface developed on the membranes after the zwitterionic coating. The UF pretreatment also improved the flux behavior of the later forward osmosis (FO) process for PW treatment. |
topic |
ultrafiltration zwitterionic modification hydrophilicity produced water |
url |
https://www.mdpi.com/2073-4441/11/8/1710 |
work_keys_str_mv |
AT mirjalalbabayev zwitterionmodifiedultrafiltrationmembranesforpermianbasinproducedwaterpretreatment AT hongbodu zwitterionmodifiedultrafiltrationmembranesforpermianbasinproducedwaterpretreatment AT venkatasvbotlaguduru zwitterionmodifiedultrafiltrationmembranesforpermianbasinproducedwaterpretreatment AT raghavarkommalapati zwitterionmodifiedultrafiltrationmembranesforpermianbasinproducedwaterpretreatment |
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1724888484946116608 |