Back to Search
Start Over
Detoxification of Copper and Chromium via Dark Hydrogen Fermentation of Potato Waste by Clostridium butyricum Strain 92
- Source :
- Processes; Volume 10; Issue 1; Pages: 170, Processes, Vol 10, Iss 170, p 170 (2022)
- Publication Year :
- 2022
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2022.
-
Abstract
- The accumulation of various types of waste containing both organic and inorganic metal-containing compounds is extremely hazardous for living organisms. The possibility of polymer degradation, biohydrogen synthesis, and metal detoxification via the dark fermentation of model potato waste was investigated. For this purpose, the strict anaerobic strain was isolated and identified as Clostridium butyricum. The high efficiency of dark hydrogen fermentation of potatoes with yield of hydrogen in 85.8 ± 15.3 L kg−1 VSpotato was observed. The copperand chromium salts solutions were added to the culture fluid to obtain the concentrations of 50, 100, and 200 mg L−1 Cu(II) and Cr(VI) in the active phase of growth (19 h of cultivation). Metals at a concentration of 200 mg L−1 inhibited the fermentation process the most. The hydrogen yield decreased in 7.2 and 3.6 times to 11.9 ± 2.1 and 23.8 ± 5.6 L kg−1 VSpotato in the presence of 200 mg L−1 Cu(II) and Cr(VI), respectively. The efficiencies of the chromium bioremoval in all variants of the experiment were 100%, and those of copper bioremoval were about 90%. A pure culture of strict anaerobes Clostridium butyricum strain 92 was used for the first time for the detoxification of metals. The presented results confirmed the possibility of this promising strain application for industrial H2 production and the bioremediation of contaminated sites.
- Subjects :
- anaerobic fermentation
hydrogen production
microbial degradation of plant polymers
potato waste
detoxification of metals
copper
chromium
strict anaerobes
Clostridium butyricum
Process Chemistry and Technology
Chemical technology
Bioengineering
TP1-1185
Chemistry
Chemical Engineering (miscellaneous)
QD1-999
Subjects
Details
- Language :
- English
- ISSN :
- 22279717
- Database :
- OpenAIRE
- Journal :
- Processes; Volume 10; Issue 1; Pages: 170
- Accession number :
- edsair.doi.dedup.....210be8f2bb1809edb83b6c21eaebb3f0
- Full Text :
- https://doi.org/10.3390/pr10010170