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Study of Wastewaters Contaminated with Heavy Metals in Bioethanol Production

Study of Wastewaters Contaminated with Heavy Metals in Bioethanol Production AbstractBioethanol as a substitute for traditional sources of energy, especially oil transport, is currently one of the most researched alternative motor fuels. Normally, bioethanol is produced from agricultural crops such as sugar cane or corn. However, this is counter-productive, because agriculture is primarily serving to ensure enough food for the people. It is therefore necessary to look for new production of appropriate non-food crops or find an added value to this process. Utilisation of contaminated water from metal industry could be one of them. Based on the hypothesis of reduction of some toxic metals with higher oxidation number is opening the possibility of using this wastewater in alcohol fermentation of any kind of biomass. In this study, hexavalent chromium Cr(VI) was used as a model contaminant in the process of aerobic fermentation of corn to bioethanol. To determine the reduction potential of glucose to Cr(VI), and to quantitatively determinate the glucose content after saccharification, UV/VIS spectrophotometry was used. As a method of qualitative determination of fermentation product, gas chromatography with mass detection was used. Infrared spectrometry was used for qualitative analyses of produced ethanol. Based on the established results shown in this paper, we can conclude that the presence of hexavalent chromium in the fermentation process does not have a significant negative impact, while offering the opportunity of using the industrial wastewaters for the production of bioethanol fuel. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research Papers Faculty of Materials Science and Technology Slovak University of Technology de Gruyter

Study of Wastewaters Contaminated with Heavy Metals in Bioethanol Production

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Publisher
de Gruyter
Copyright
© 2017 Alica Bartošová et al., published by De Gruyter Open
ISSN
1338-0532
eISSN
1338-0532
DOI
10.1515/rput-2017-0008
Publisher site
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Abstract

AbstractBioethanol as a substitute for traditional sources of energy, especially oil transport, is currently one of the most researched alternative motor fuels. Normally, bioethanol is produced from agricultural crops such as sugar cane or corn. However, this is counter-productive, because agriculture is primarily serving to ensure enough food for the people. It is therefore necessary to look for new production of appropriate non-food crops or find an added value to this process. Utilisation of contaminated water from metal industry could be one of them. Based on the hypothesis of reduction of some toxic metals with higher oxidation number is opening the possibility of using this wastewater in alcohol fermentation of any kind of biomass. In this study, hexavalent chromium Cr(VI) was used as a model contaminant in the process of aerobic fermentation of corn to bioethanol. To determine the reduction potential of glucose to Cr(VI), and to quantitatively determinate the glucose content after saccharification, UV/VIS spectrophotometry was used. As a method of qualitative determination of fermentation product, gas chromatography with mass detection was used. Infrared spectrometry was used for qualitative analyses of produced ethanol. Based on the established results shown in this paper, we can conclude that the presence of hexavalent chromium in the fermentation process does not have a significant negative impact, while offering the opportunity of using the industrial wastewaters for the production of bioethanol fuel.

Journal

Research Papers Faculty of Materials Science and Technology Slovak University of Technology – de Gruyter

Published: Jun 1, 2017

References

  • Effects of fermentation substrate conditions on corn - soy co - fermentation for fuel ethanol production
    YAO
  • Removal of chromium VI from aqueous solution using treated waste newspaper as a low - cost adsorbent : Kinetic modeling and isotherm studies
    Dehghani
  • Glucose promotes the reduction of hexavalent chromium in soil
    LEITA
  • Removal of chromium VI from aqueous solution using treated waste newspaper as a low - cost adsorbent : Kinetic modeling and isotherm studies
    Dehghani
  • Glucose promotes the reduction of hexavalent chromium in soil
    LEITA
  • Arsenic and chromium removal from water using biochars derived from rice husk organic solid wastes and sewage sludge
    AGRAFIOTI
  • Changes induced by two chromium - containing compounds in antioxidaive response soluble protein level and amylase activity in barley seedlings
    OLTEANU
  • Water purification using different waste fruit cortexes for the removal of heavy metals
    QAHTANI
  • Heavy Metals Toxicity and the
    TCHOUNWOU
  • Microbial Reduction of Hexavalent Chromium as a Mechanism of Detoxification and Possible Applications Biodegrad No Iii
    FOCARDI
  • Effects of fermentation substrate conditions on corn - soy co - fermentation for fuel ethanol production
    YAO
  • Quantitative analysis of methanol an adulterant in alcoholic beverages using attenualed total reflectance spectroscopy of Scientific and ISSN
    NAGARAJAN
  • Changes induced by two chromium - containing compounds in antioxidaive response soluble protein level and amylase activity in barley seedlings
    OLTEANU
  • Water purification using different waste fruit cortexes for the removal of heavy metals
    QAHTANI
  • Heavy Metals Toxicity and the
    TCHOUNWOU
  • Microbial Reduction of Hexavalent Chromium as a Mechanism of Detoxification and Possible Applications Biodegrad No Iii
    FOCARDI
  • Quantitative analysis of methanol an adulterant in alcoholic beverages using attenualed total reflectance spectroscopy of Scientific and ISSN
    NAGARAJAN
  • Arsenic and chromium removal from water using biochars derived from rice husk organic solid wastes and sewage sludge
    AGRAFIOTI