Hematite and multi-walled carbon nanotubes stimulate a faster syntrophic pathway during methanogenic beet sugar industrial wastewater degradation

dc.contributor.authorAmbuchi, John Justo
dc.contributor.authorZhang, Zhaohan
dc.contributor.authorDong, Yue
dc.contributor.authorHuang, Linlin
dc.contributor.authorFeng, Yujie
dc.date.accessioned2023-10-25T09:56:09Z
dc.date.available2023-10-25T09:56:09Z
dc.date.issued2017-09-22
dc.description.abstractThe quest to understand and subsequently improve the role played by bacteria and archaea in the degradation of organic matter both in natural and engineered anaerobic ecosystems has intensified the utilization of nanoparticles. Microbial communities are known to syntrophically cooperate during the anaerobic conversion of substrates into methane gas via the direct exchange of electrons. In this study, the role of hematite (Fe2O3—750 mg/L) and multi-walled carbon nanotubes (MWCNTs—1500 mg/L) during the degradation of beet sugar industrial wastewater (BSIW) in a batch experiment was investigated. Hematite and MWCNTs enhanced methane gas generation by 35 and 20%, respectively. Furthermore, microbial syntrophic communities might have exchanged metabolic electrons more directly, with hematite and MWCNTs serving as electron conduits between the homoacetogens and methanogens, thereby establishing a direct interspecies electron transfer (DIET) pathway. Additionally, hematite and MWCNTs enriched the bacteria Firmicutes while Chloroflexi reduced in abundance. Scanning electron microscopy and confocal laser scanning microscopy demonstrated that extracellular polymeric substances had noticeable interactions with both hematite and MWCNTs. Our findings provide vital information for more understanding of the response of microbes to hematite and MWCNTs in a complex natural environment.en_US
dc.identifier.urihttp://repository.rongovarsity.ac.ke/handle/123456789/2537
dc.language.isoenen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectBeet sugar industrial wastewater . Direct interspecies electron transfer . Hematite . Methane gas . Multi-wall carbon nanotubesen_US
dc.titleHematite and multi-walled carbon nanotubes stimulate a faster syntrophic pathway during methanogenic beet sugar industrial wastewater degradationen_US
dc.typeArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Hematite and multi-walled carbon nanotubes stimulate a faster.pdf
Size:
2.16 MB
Format:
Adobe Portable Document Format
Description:

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: