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Removal and fate of micropollutants in a sponge-based moving bed bioreactor

Journal Article


Abstract


  • This study investigated the removal of micropollutants using polyurethane sponge as attached-growth carrier. Batch experiments demonstrated that micropollutants could adsorb to non-acclimatized sponge cubes to varying extents. Acclimatized sponge showed significantly enhanced removal of some less hydrophobic compounds (log. D<. 2.5), such as ibuprofen, acetaminophen, naproxen, and estriol, as compared with non-acclimatized sponge. The results for bench-scale sponge-based moving bed bioreactor (MBBR) system elucidated compound-specific variation in removal, ranging from 25.9% (carbamazepine) to 96.8% (β-Estradiol 17-acetate) on average. In the MBBR system, biodegradation served as a major removal pathway for most compounds. However, sorption to sludge phase was also a notable removal mechanism of some persistent micropollutants. Particularly, carbamazepine, ketoprofen and pentachlorophenol were found at high concentrations (7.87, 6.05 and 5.55. μg/g, respectively) on suspended biosolids. As a whole, the effectiveness of MBBR for micropollutant removal was comparable with those of activated sludge processes and MBRs. © 2014 Elsevier Ltd.

Authors


  •   Luo, Yunlong (external author)
  •   Guo, Wenshan (external author)
  •   Ngo, Hao H. (external author)
  •   Nghiem, Long D. (external author)
  •   Hai, Faisal I.
  •   Kang, Jinguo (external author)
  •   Xia, Siqing (external author)
  •   Zhang, Zhiqiang (external author)
  •   Price, William E.

Publication Date


  • 2014

Citation


  • Luo, Y., Guo, W., Ngo, H. H., Nghiem, L. D., Hai, F. I., Kang, J., Xia, S., Zhang, Z. & Price, W. E. (2014). Removal and fate of micropollutants in a sponge-based moving bed bioreactor. Bioresource Technology, 159 311-319.

Scopus Eid


  • 2-s2.0-84896538984

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2309

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 311

End Page


  • 319

Volume


  • 159

Place Of Publication


  • Netherlands

Abstract


  • This study investigated the removal of micropollutants using polyurethane sponge as attached-growth carrier. Batch experiments demonstrated that micropollutants could adsorb to non-acclimatized sponge cubes to varying extents. Acclimatized sponge showed significantly enhanced removal of some less hydrophobic compounds (log. D<. 2.5), such as ibuprofen, acetaminophen, naproxen, and estriol, as compared with non-acclimatized sponge. The results for bench-scale sponge-based moving bed bioreactor (MBBR) system elucidated compound-specific variation in removal, ranging from 25.9% (carbamazepine) to 96.8% (β-Estradiol 17-acetate) on average. In the MBBR system, biodegradation served as a major removal pathway for most compounds. However, sorption to sludge phase was also a notable removal mechanism of some persistent micropollutants. Particularly, carbamazepine, ketoprofen and pentachlorophenol were found at high concentrations (7.87, 6.05 and 5.55. μg/g, respectively) on suspended biosolids. As a whole, the effectiveness of MBBR for micropollutant removal was comparable with those of activated sludge processes and MBRs. © 2014 Elsevier Ltd.

Authors


  •   Luo, Yunlong (external author)
  •   Guo, Wenshan (external author)
  •   Ngo, Hao H. (external author)
  •   Nghiem, Long D. (external author)
  •   Hai, Faisal I.
  •   Kang, Jinguo (external author)
  •   Xia, Siqing (external author)
  •   Zhang, Zhiqiang (external author)
  •   Price, William E.

Publication Date


  • 2014

Citation


  • Luo, Y., Guo, W., Ngo, H. H., Nghiem, L. D., Hai, F. I., Kang, J., Xia, S., Zhang, Z. & Price, W. E. (2014). Removal and fate of micropollutants in a sponge-based moving bed bioreactor. Bioresource Technology, 159 311-319.

Scopus Eid


  • 2-s2.0-84896538984

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2309

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 311

End Page


  • 319

Volume


  • 159

Place Of Publication


  • Netherlands