Strain screening and ozone pretreatment for algae farming in wastewaters from sugarcane ethanol biorefinery

2021 ◽  
Vol 282 ◽  
pp. 124522
Author(s):  
Javier Hernán Heredia Falconí ◽  
Jimmy Soares ◽  
Dilson Novais Rocha ◽  
Marcelo Gomes Marçal Vieira Vaz ◽  
Marcio Arêdes Martins
Keyword(s):  
Strain Screening ◽  
Ozone Pretreatment

Strain screening for lowering immune activity of β-conglycinin in defatted whole soybean flour through fermentation

2014 ◽  
Vol 94 (3) ◽  
pp. 427-436 ◽  
Author(s):  
Nan Bao ◽  
Guixin Qin ◽  
Pengfei Zhang ◽  
Yuan Zhao ◽  
Zhe Sun ◽  
...  
Keyword(s):  
Soybean Flour ◽  
Immune Activity ◽  
Strain Screening

Anaerobic digestion of excess activated sludge with ozone pretreatment

2003 ◽  
Vol 47 (12) ◽  
pp. 207-214 ◽  
Author(s):  
R. Goel ◽  
T. Tokutomi ◽  
H. Yasui
Keyword(s):  
Anaerobic Digestion ◽  
Ozone Treatment ◽  
Anaerobic Sludge ◽  
Methane Recovery ◽  
Sludge Disposal ◽  
Ozone Dose ◽  
Significant Difference ◽  
Attractive Option ◽  
Ozone Pretreatment

Source minimization of excess sludge production by economical means can be considered an attractive option to deal with the problem of sludge disposal under strict disposal standards. In this paper long-term operational results for a process that combines the oxidative ozone pretreatment with anaerobic sludge digestion are described. The ozone pretreatment solubilized around 19% and 37% of the solids at 0.015 and 0.05 gO3/gTS ozone dose. The solubilization ratios during ozonation did not show any significant difference for the sludge concentrations ranging from 1.8-2.6%. The TVS concentrations after ozone treatment were observed to be about 3% lower than the feed sludge concentrations suggesting only partial mineralization during ozonation. The ozone pretreatment resulted in improved solid reduction efficiencies during anaerobic digestion leading to higher methane recovery. The TVS removal efficiencies during anaerobic digestion were observed to increase by a maximum of 35-90% depending on the applied ozone dose during ozone pretreatment. The improvement in TVS degradation efficiency at different applied ozone doses correlated well with the extent of solubilization during ozonation. Long-term data also suggested that biomass acclimation to ozonated sludge was necessary before higher degradation efficiencies could be achieved.

scholarly journals Enhancing BOD5/COD ratio co-substrate tofu wastewater and cow dung during ozone pretreatment

2019 ◽  
Vol 276 ◽  
pp. 06027
Author(s):  
David Andrio ◽  
Jecky Asmura ◽  
Elvi Yenie ◽  
Khalidazia Putri
Keyword(s):  
Contact Time ◽  
Cow Dung ◽  
Ozone Pretreatment

Ozonation pretreatment was applied to enhancing BOD/COD ratio co-substrate tofu wastewater and cow dung. Ozonation pretreatment were conducted at pH of 5.2,8.0, and 10.0, with contact times of 20, 40, and 60 minutes. The results showed that the best condition for enhancing biodegrability is pH of 10 and contact time of 60 minutes with increasing BOD/COD ratio from 0.06 to 0.49, indicating an easy biodegradable substrate category.

Yeasts strain screening method for a continuous process of alcoholic fermentation

1985 ◽  
Vol 7 (6) ◽  
pp. 437-442 ◽  
Author(s):  
J. Tabera ◽  
M. A. Iznaola ◽  
I. Schnabel ◽  
J. Garrido
Keyword(s):  
Alcoholic Fermentation ◽  
Continuous Process ◽  
Screening Method ◽  
Strain Screening
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