Use of cooling tower blow down in ethanol fermentation

N. Rajagopalan, V. Singh, B. Panno, M. Wilcoxon

Research output: Contribution to journalArticle

Abstract

Reducing water consumption in bioethanol production conserves an increasingly scarce natural resource, lowers production costs, and minimizes effluent management issues. The suitability of cooling tower blow down water for reuse in fermentation was investigated as a means to lower water consumption. Extensive chemical characterization of the blow down water revealed low concentrations of toxic elements and total dissolved solids. Fermentation carried out with cooling tower blow down water resulted in similar levels of ethanol and residual glucose as a control study using deionized water. The study noted good tolerance by yeast to the specific scale and corrosion inhibitors found in the cooling tower blow down water. This research indicates that, under appropriate conditions, reuse of blow down water from cooling towers in fermentation is feasible.

LanguageEnglish (US)
Pages2263-2269
Number of pages7
JournalWater Science and Technology
Volume62
Issue number10
DOIs
StatePublished - Dec 1 2010

Fingerprint

Cooling towers
Fermentation
fermentation
ethanol
Ethanol
Water
water
Bioethanol
production cost
Deionized water
Corrosion inhibitors
Natural resources
yeast
cooling tower
glucose
Yeast
natural resource
tolerance
Glucose
Effluents

Keywords

  • Cooling tower blow down
  • Ethanol
  • Water reuse

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Use of cooling tower blow down in ethanol fermentation. / Rajagopalan, N.; Singh, V.; Panno, B.; Wilcoxon, M.

In: Water Science and Technology, Vol. 62, No. 10, 01.12.2010, p. 2263-2269.

Research output: Contribution to journalArticle

Rajagopalan, N. ; Singh, V. ; Panno, B. ; Wilcoxon, M./ Use of cooling tower blow down in ethanol fermentation. In: Water Science and Technology. 2010 ; Vol. 62, No. 10. pp. 2263-2269
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