The Use of Locally Produced Lime for Clarification of Juice in the Cane Sugar Industry
The Use of Locally Produced Lime for Clarification of Juice in the Cane Sugar Industry
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Date
2015-04-27
Authors
Zaeib, Mona Ghazi
Journal Title
Journal ISSN
Volume Title
Publisher
UOFK
Abstract
Juice purification using lime is a standard established practice in
the sugar industry allover the world.
In order to remove impurities from juice, the juice is treated
mechanically, thermally and chemically. The main compound for
chemical treatment is CaO in Association with flocculants (polymers),
which precipitate the soluble salts and colloids in the juice as insoluble
ones.
In Sudan lime is imported to meet the demand of the growing sugar
industry. So, the purpose of this study could be summarized in the
following:
1) To assess the suitability of local lime for juice clarification.
2) To determine the effectiveness of the local lime mixed with
polymers (PDADMAC, PAC) for juice clarification.
3) To identify and assess the factors affecting juice clarification.
4) To determine the optimum concentrations and conditions for juice
clarification.
In order to achieve the above objectives Elgunied Sugar Factory
has been chosen to represent the sugar factories in Sudan.
After comprehensive comparative study and laboratory research, it
was found that the local lime is suitable for clarification process with and
without polymers economically and practically. Since the removed
turbidity reached 93.5%, the removed colour reached 2.7% when only the
local lime is used in juice clarification, comparatively the imported lime
removed 92.3% of the turbidity and 16.4% of the colour.
Description
Keywords
Use,Locally,Produced,Lime,Clarification,Juice,Industry