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Production and application of activated carbon from sugarcane bagasse

Every year the sugar industry in the United States emitted 8.6 million tons of bagasse is burned to most steam production , the rest is wasted or used as a low-value products . Granular Activated Carbon ( GAC ) from bagasse has many advantages compared with bone charcoal or activated carbon from bituminous coal is still used as a kind of color removal for roads and other production processes .
It is currently conducting research and evaluation of GAC ability bleached bagasse sugar than other types of activated carbon are being sold on the market .
Currently we are working on sugarcane bagasse into granular activated carbon ( GAC ) used for many purposes , such as bleach or coarse sugar reducing organic pollutants and metal ions in wastewater .
American sugar refining industry uses large quantities of charcoal and bone GAC from bituminous coal to produce l6.000 tons of refined sugar per day . Both adsorbent bleaching of raw sugar are effective but bone charcoal ( the product from cattle bones ) to import , to be affected by the instability of the international market and domestic bituminous coal but have America but supply is limited.
The cost of coal production from coal GAC bone and approximately $ 1.21 and $ 4.41 / kg . GAC origin bagasse can be used as detergent for colored sugar detergent instead of colors available in the market . Price of coal is also low compared with bone char and activated carbon derived from coal due to lower production costs .
Bagasse - byproduct in sugar mills - in its natural state is weak adsorbent for organic compounds ( such as the color of the line ) or metal ions . A method is being applied to dramatically increase the adsorption capacity of bagasse as surface treatment materials . This process is done most effectively by turning bagasse into activated carbon . Carbonization process occurs simultaneously with the chemical bagasse denatured - Management at high temperatures in oxidizing atmosphere not . Granular activated carbon is created by mixing bagasse and various adhesives or high temperature pyrolysis offers . Activated carbon in CO2 or water vapor at high temperature .
Bagasse had to be crushed , mixed with a binder , pressed into cakes or pellets to have a density of 1.2 g/cm3 , and bring pyrolysis , and if necessary, activate the oxidation.
The presence of different binders in the GAC from bagasse has affected the chemical properties - its management . Generally , activated carbon from sugarcane bagasse using molasses binder is not appropriate for bleaching process by :
- Are far
- Also contains high ash content .
- The control will impact the transition cane sugar ( sucrose ) into glucose and fructose .
To overcome this drawback , activated carbon from bagasse is mixed with a binder is corn syrup , thereby bleaching the ability to translate , and improved roads . The NAV is being tested to replace the use of activated charcoal is used as detergent for colored raw sugar now .
In addition to making use of activated charcoal colored detergent raw sugar , it also continues to expand the field of application to removal of organic compounds and low molecular weight metal ions in industrial wastewater and urban . To test the study , we used a circular charcoal tablets , not caking coals . The experimental results show that compared with conventional types of activated carbon , activated carbon from bagasse adsorbed copper ions adsorbed better but less organic matter . Thus the possibility of using activated carbon from bagasse to produce raw sugar bleaching is very promising . For U.S. domestic consumption potential is very large .

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