The treatment of wastewaters from sugar cane alcohol production with modified bentonites

The recent use of hydrated ethanol as an alternative automotive fuel in Brazil has created a major environmental problem to the country. The final product of sugar cane juice fermentation is a ten percent ethanol solution. In order to reach the concentration of the hydrated ethanol (96%) the weak so...

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Published in:Water science and technology 1989-01, Vol.21 (12), p.1845-1847
Main Author: Buchler, P M
Format: Article
Language:English
Subjects:
Adsorption
Alcohol
Alcohols
Ammonium
Applied sciences
Automotive fuels
Automotive parts
Bentonite
Clay
Climate
Ethanol
Exact sciences and technology
Fermentation
Freshwater
Fructose
Glycine
High temperature
Hot climates
Industrial wastewaters
Isotherms
Low temperature
Organic chemistry
Organic compounds
Phenols
Pollution
Quaternary
Sugar
Sugarcane
Vinasse
Wastewater treatment
Wastewaters
Water treatment and pollution
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description The recent use of hydrated ethanol as an alternative automotive fuel in Brazil has created a major environmental problem to the country. The final product of sugar cane juice fermentation is a ten percent ethanol solution. In order to reach the concentration of the hydrated ethanol (96%) the weak solution has to be distilled. Therefore for each liter of alcohol produced ten liters of liquid residue will be generated. This residue, known as vinasse, is a 5 to 10% solution of mostly organic molecules. Therefore the BOD of vinasse can be as high as 50,000 mg/l. Vinasse is the most abundant pollutant from industrial origin in Brazil. In most developing countries, the residue is stored in stabilization ponds without any lining. The final result is leakage to rivers and infiltration to underground water. The present work is a study of the adsorption of some organic components of vinasse in a tetra methyl ammonium derivative of Wyoming bentonite. A sodium Brazilian bentonite was also studied.
doi_str_mv 10.2166/wst.1989.0184
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identifier ISSN: 0273-1223
ispartof Water science and technology, 1989-01, Vol.21 (12), p.1845-1847
issn 0273-1223
1996-9732
language eng
recordid cdi_proquest_miscellaneous_29948707
source Alma/SFX Local Collection
subjects Adsorption
Alcohol
Alcohols
Ammonium
Applied sciences
Automotive fuels
Automotive parts
Bentonite
Clay
Climate
Ethanol
Exact sciences and technology
Fermentation
Freshwater
Fructose
Glycine
High temperature
Hot climates
Industrial wastewaters
Isotherms
Low temperature
Organic chemistry
Organic compounds
Phenols
Pollution
Quaternary
Sugar
Sugarcane
Vinasse
Wastewater treatment
Wastewaters
Water treatment and pollution
title The treatment of wastewaters from sugar cane alcohol production with modified bentonites
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