Enhancing anaerobic digestion of sulphate wastewater by adding nano-zero valent iron
In this paper, the effects of nano-zero valent iron (nZVI) on anaerobic digestion of sulphate wastewater with different SO42-/COD ratios, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that n...
| Publié dans: | Environmental technology. - 1993. - 44(2023), 26 vom: 01. Nov., Seite 3988-3996 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2023
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| Accès à la collection: | Environmental technology |
| Sujets: | Journal Article Anaerobic digestion biogas yield methanogens nano-zero valent iron sulphate wastewater Wastewater Sewage Iron E1UOL152H7 plus... |
| Résumé: | In this paper, the effects of nano-zero valent iron (nZVI) on anaerobic digestion of sulphate wastewater with different SO42-/COD ratios, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that nZVI could effectively enhance the treatment efficiency and methane yield. Compared with the control group without nZVI, the methane yield increased from 348.6833 to 1007.05 mL CH4/gCODremoval with 4 g nZVI loading at SO42-/COD = 0.1. nZVI could make electron flow from sulphate reduction to methane production, which increased methane yield even at high sulphate concentration. The microbial community analysis showed that adding nZVI could increase the abundance of acetoclastic methanogens, which accelerated hydrolysis acidification |
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| Description: | Date Completed 29.09.2023 Date Revised 29.09.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1479-487X |
| DOI: | 10.1080/09593330.2022.2077137 |