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Dai C, Yang L, Wang J, et al. Enhancing anaerobic digestion of pharmaceutical industries wastewater with the composite addition of zero valent iron (ZVI) and granular activated carbon (GAC). Bioresour Technol. 2021;346:126566doi: 10.1016/j.biortech.2021.126566.
Dai, C., Yang, L., Wang, J., Li, D., Zhang, Y., & Zhou, X. (2021). Enhancing anaerobic digestion of pharmaceutical industries wastewater with the composite addition of zero valent iron (ZVI) and granular activated carbon (GAC). Bioresource technology, 346126566. https://doi.org/10.1016/j.biortech.2021.126566
Dai, Chenbo, et al. "Enhancing anaerobic digestion of pharmaceutical industries wastewater with the composite addition of zero valent iron (ZVI) and granular activated carbon (GAC)." Bioresource technology vol. 346 (2021): 126566. doi: https://doi.org/10.1016/j.biortech.2021.126566
Dai C, Yang L, Wang J, Li D, Zhang Y, Zhou X. Enhancing anaerobic digestion of pharmaceutical industries wastewater with the composite addition of zero valent iron (ZVI) and granular activated carbon (GAC). Bioresour Technol. 2021 Dec 15;346:126566. doi: 10.1016/j.biortech.2021.126566. Epub 2021 Dec 15. PMID: 34921919.
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Bioresour Technol. 2021 Dec 15;346:126566. doi: 10.1016/j.biortech.2021.126566. Epub 2021 Dec 15.

Enhancing anaerobic digestion of pharmaceutical industries wastewater with the composite addition of zero valent iron (ZVI) and granular activated carbon (GAC).

Bioresource technology

Chenbo Dai, Libin Yang, Jun Wang, Dezhen Li, Yalei Zhang, Xuefei Zhou

Affiliations

  1. State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China.
  2. State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, PR China.
  3. SPH XingLing Sci&Tech.Pharmaceutical Co.,Ltd., Shanghai 201703, PR China.
  4. State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China.
  5. State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China. Electronic address: [email protected].

PMID: 34921919 DOI: 10.1016/j.biortech.2021.126566

Abstract

Anaerobic digestion of pharmaceutical wastewater is challenged by its contained toxic compounds which limits the stability and efficiency of methane production and organic degradation. In this study, zero valent iron (ZVI) and granular activated carbon (GAC) were added with different strategies to improve anaerobic digestion of pharmaceutical wastewater. The results confirmed synergy effects of ZVI + GAC for both COD removal (increased by 13.4%) and methane production (increased by 11.0%). Furthermore, ZVI + GAC improved the removal of pharmaceutical intermediates, in particular, the residues (%) of dehydroepiandrosterone (DHEA) and 2,2'-methylenebis(6-tert-butyl-4-methylphenol) were only 30.48 ± 6.53 and 39.92 ± 4.50, and effectively reduced biotoxicity. The promoted results were attributed to the establishment of direct interspecies electron transfer (DIET). Microbial community analysis revealed that ZVI + GAC decreased species evenness and richness in bacterial whereas increased in archaeal. The relative abundance of acetotrophic methanogens decreased but hydrogenotrophic and methylotrophic methanogens increased, which broadening the pathway of methane production.

Copyright © 2021 Elsevier Ltd. All rights reserved.

Keywords: Anaerobic digestion; Degradation mechanisms; Granular activated carbon; Pharmaceutical wastewater; Zero valent iron

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