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Two types of solid wastes
are produced during the manufacture of sugar. Bagasse is produced in the
mill house in a quantity of about 30% of the crushed cane. The bagasse
contains 50% moisture. Press mud or filter cake is produced in vacuum
filters and press filters. The mud is produced in a range of 3-8 % of the
crushed cane, depending on the nature of sugar manufacturing process.
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Press mud, which is
discarded as a solid waste from sugar mills and used as a manure or as a
landfill, is found to be an useful substrate for biogas production.
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Sugar cane straw wastes
can be recycled as active additions once calcined in the temperature range
of 800 or 1000 C.
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The manufacture of sugar
generates large quantities of biomass waste such as rice husk, bamboo dust,
bagasse, coconut coir, jute and sticks. This waste is ideal for use as fuel
togenerate power.
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Distilleries that utilize
Upflow Anaerobic Sludge Blanket (UASB) for wastewater treatment include the
large scale sugar cane fermentation industry in Brazil, which makes
extensive use of UASB technology for its effluent treatment needs.
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Chromatographic methods
are also used in sugar production processes (e.g.: green syrup and molasses)
to reduce the nonsugars and to increase the quantity of crystallisable
sugar. The waste water from sugar treatment plants is normally subjected to
extended aeration in ponds and is ultimately made to undergo intensive
biological oxidation.
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As the world’s largest
sugar producer, Brazil has the potential to be a market for bagasse-based
power generation worth $24B, yet less than10% of this opportunity is
currently being fulfilled.
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Brazil is the world’s
leading producer of sugar cane, sugar and ethanol, growing sugar cane crops
on five million hectares, a tenth of its cultivated land. There are around
60,000 crop suppliers, and 320 industrial units producing ethanol and sugar:
driven by market demand, producers are themselves now building another 50
facilities.
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Sugar cane now provides 13
per cent of Brazil’s energy, replacing fossil fuels with ethanol for
transport and bagasse (waste pulp) for heat and power. It supplies: 180,000
barrels a day of ethanol, 400 per cent of all the gasoline used in the
country.
Entrepreneur who want the information on Process,
Company Profiles, Project, Market, Report, Technology, Plant, Patent, Uses,
Machinery, Consultants can E-Mail to
informer@eth.net,
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