Enhanced 2,4,6-trichlorophenol anaerobic degradation by Fe3O4 supported on water hyacinth biochar for triggering direct interspecies electron transfer and its use in coal gasification wastewater treatment
In: Bioresource Technology, Jg. 296 (2020), S. 122306-122306
Online
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Zugriff:
Fe3O4 supported on water hyacinth biochar (Fe3O4/WHB) was successfully used in anaerobic degradation of 2,4,6-trichlorophenol and coal gasification wastewater (CGW). Chemical oxygen demand removal efficiency and methane production were significantly improved to 98.9% and 2.0 L with Fe3O4/WHB assisted. Fe3O4/WHB facilitated the conversion of CO2 to methane and reduce H2 production. A higher coenzyme F420 concentration of 1.32 μmol/(g-mixed liquor volatile suspended solids) was found with the presence of Fe3O4/WHB, which might result in a faster conversion of acetate to methane. More interspecific signal molecules, lower diffusible signal factor, and higher mean particle size indicated that Fe3O4/WHB accelerated the sludge granulation process. Microbial community analysis revealed that enriched bacteria Geobacter along with archaea Methanothrix and Methanosarcina may be involved in direct interspecies electron transfer by Fe3O4/WHB stimulation, enhancing the performance of 2,4,6-trichlorophenol fermentation. It is shown that use of Fe3O4/WHB is feasible for enhanced CGW treatment.
| Titel: |
Enhanced 2,4,6-trichlorophenol anaerobic degradation by Fe3O4 supported on water hyacinth biochar for triggering direct interspecies electron transfer and its use in coal gasification wastewater treatment
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| Autor/in / Beteiligte Person: | Zhu, Hao ; Xie, Qiaona ; Tang, Haojie ; Zhuang, Haifeng ; Zhang, Jin ; Shan, Shengdao ; Fang, Chengran |
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| Zeitschrift: | Bioresource Technology, Jg. 296 (2020), S. 122306-122306 |
| Veröffentlichung: | Elsevier BV, 2020 |
| Medientyp: | unknown |
| ISSN: | 0960-8524 (print) |
| DOI: | 10.1016/j.biortech.2019.122306 |
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