Bioelectrochemical Ethanol Production through Mediated Acetate Reduction by Mixed Cultures

2010 ◽  
Vol 44 (1) ◽  
pp. 513-517 ◽  
Author(s):  
Kirsten J. J. Steinbusch ◽  
Hubertus V. M. Hamelers ◽  
Joris D. Schaap ◽  
Christel Kampman ◽  
Cees J. N. Buisman
Keyword(s):  
Ethanol Production ◽  
Mixed Cultures ◽  
Acetate Reduction

Characterization of the starch degradation activity from newly isolated Rhizopus oryzae WCS-1 and mixed cultures with Saccharomyces cerevisiae for efficient ethanol production from starch

2015 ◽  
Vol 24 (5) ◽  
pp. 1805-1810 ◽  
Author(s):  
Seung-Won Jang ◽  
Jin-Seong Kim ◽  
Jae-Bum Park ◽  
Jong-Hyun Jung ◽  
Cheon-Seok Park ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Ethanol Production ◽  
Rhizopus Oryzae ◽  
Mixed Cultures ◽  
Starch Degradation ◽  
Degradation Activity

Ethanol production by mixed-cultures ofPaenibacillus sp. andZymomonas mobilis using the raw starchy material from sweet potato

2009 ◽  
Vol 59 (4) ◽  
pp. 749-754 ◽  
Author(s):  
Ming-Xiong He ◽  
Yi Li ◽  
Xun Liu ◽  
Fan Bai ◽  
Hong Feng ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Sweet Potato ◽  
Mixed Cultures ◽  
Starchy Material

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.

Feasibility of solar assisted ethanol production

1981 ◽  
Author(s):  
M. HOLDEN ◽  
A. SHEKAR ◽  
T. SMITH
Keyword(s):  
Ethanol Production

Rapid Ethanol Production from Fresh Sweet Potato

2010 ◽  
Vol 2009 (3) ◽  
pp. 405-409
Author(s):  
Naikun SHEN ◽  
Hai ZHAO ◽  
Mingzhe GAN ◽  
Yanling JIN ◽  
Lingling ZHOU ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Sweet Potato

Impact of Transfaunation of Rumen Ciliate Cultures on Physical Examination, Selected Serum Parameters and Milk Profile in Defaunated Lactating Dairy Goats

2020 ◽  
Keyword(s):  
Physical Examination ◽  
Mixed Culture ◽  
Pure Culture ◽  
Milk Fat ◽  
Mixed Cultures ◽  
Dairy Goats ◽  
Serum Parameters ◽  
Native Breed ◽  
Culture Duration ◽  
Inorganic Phosphorous

Rumen ciliates still have mysterious secrets and influences in ruminants. This study investigated the effect of transfaunation of pure and mixed cultures of rumen ciliates on physical clinical examination, selected serum parameters and milk profile in defaunated lactating dairy goats. A number of 8 Baladi native breed goats were randomly classified into two groups each one containing 4 goats. Pure culture group was transfaunated with 6 ml of pure culture of Holotricha spp., while mixed culture group was transfaunated with 6 ml of mixed culture of 81.85% Holotricha and 18.15% Ophryoscolex spp. once weekly for three consecutive weeks, after defaunation of both groups using 30 ml of 8% SLS for two consecutive days. Serum and milk samples were collected weekly for three successive weeks to study effect of type of ciliate culture, duration of transfaunation and their interaction. Results revealed that transfaunation of pure and mixed cultures of rumen ciliates had no effect on physical examination with minimal non-significant improvement of calcium, inorganic phosphorous, total protein and globulin in serum of defaunated goats. Transfaunation of pure or mixed cultures of rumen ciliates within three weeks could not improve significantly decreased milk fat % of defaunated goats without any effect on other measured milk profile parameters. It is concluded that further investigations on transfaunation without prior defaunation should be performed using different pure and mixed cultures of rumen ciliates for therapeutic and productive purposes.

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