Ethanol production by alginate immobilised yeast in a fluidised bed bioreactor

1995 ◽  
Vol 62 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Christopher D. Gilson ◽  
Adrian Thomas
Keyword(s):  
Ethanol Production ◽  
Fluidised Bed ◽  
Immobilised Yeast

Reactors for ethanol production using immobilised yeast cells

2007 ◽  
Vol 39 (2) ◽  
pp. 75-84 ◽  
Author(s):  
Nasibuddin Qureshi ◽  
J. S. Pai ◽  
D. V. Tamhane
Keyword(s):  
Ethanol Production ◽  
Yeast Cells ◽  
Immobilised Yeast

Studies on the contamination of feed molasses for continuous ethanol production in an immobilised yeast cell reactor

2008 ◽  
Vol 34 (2) ◽  
pp. 111-115 ◽  
Author(s):  
R. Varma ◽  
B. A. Baliga ◽  
S. K. Chatterjee ◽  
B. K. Ghosh ◽  
P. M. Dalai ◽  
...  
Keyword(s):  
Yeast Cell ◽  
Ethanol Production ◽  
Cell Reactor ◽  
Immobilised Yeast

Ethanol production by immobilised yeast and its CO2 gas effects in a packed bed reactor

2007 ◽  
Vol 32 (7-12) ◽  
pp. 959-967 ◽  
Author(s):  
Gyu Hoen Cho ◽  
Cha Yong Choi ◽  
Yang Do Choi ◽  
Moon H. Han
Keyword(s):  
Ethanol Production ◽  
Packed Bed ◽  
Packed Bed Reactor ◽  
Co2 Gas ◽  
Immobilised Yeast

DECOLOURIZATION AND COD REMOVAL OF WASEWATER FROM ETHANOL PRODUCTION PROCESS FROM MOLASSES BY COAGULANTION USING INORGANIC ALUM

2010 ◽  
Vol 13 (3) ◽  
pp. 92-102
Author(s):  
Trung Duc Le
Keyword(s):  
Ethanol Production ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Treated Wastewater ◽  
Treatment Processes ◽  
Physico Chemical ◽  
Biological Methods ◽  
Treatment Step ◽  
Main Material

The industrial production of ethanol by fermentation using molasses as main material that generates large quantity of wastewater. This wastewater contains high levels of colour and chemical oxygen demand (COD), that may causes serious environmental pollution. Most available treatment processes in Vietnam rely on biological methods, which often fail to treat waste water up to discharge standard. As always, it was reported that quality of treated wastewater could not meet Vietnameses discharge standard. So, it is necessary to improve the treatment efficiency of whole technological process and therefore, supplemental physico-chemical treatment step before biodegradation stage should be the appropriate choice. This study was carried out to assess the effect of coagulation process on decolourization and COD removal in molasses-based ethanol production wastewater using inorganic coaglutant under laboratory conditions. The experimental results showed that the reductions of COD and colour with the utilization of Al2(SO4)3 at pH 9.5 were 83% and 70%, respectively. Mixture FeSO4 – Al2(SO4)3 at pH 8.5 reduced 82% of colour and 70% of COD. With the addition of Polyacrylamide (PAM), the reduction efficiencies of colour, COD and turbidity by FeSO4 – Al2(SO4)3 were 87%, 73.1% and 94.1% correspondingly. It was indicated that PAM significantly reduced the turbidity of wastewater, however it virtually did not increase the efficiencies of colour and COD reduction. Furthermore, the coagulation processes using PAM usually produces a mount of sludge which is hard to be deposited.

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