Treatment of sugar beet thick juice spent wash by chemical and natural coagulants
2009
Sciban, M.B., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Klasnja, M.T., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Antov, M.G., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology
The possibility of the treatment of wastewater from bioethanol production by aluminium sulphate and natural coagulant extracted from common bean seed was studied. The highest coagulation activity at pH 6.5 is reached with analum dose of 1 g/l, but only a litter lower coagulation activities were obtained by the dose of 0.05 and 0.10 g/l, which is more favourable for economic and environmental reasons. When natural coagulant from common bean was applied the highest coagulation activity, 14.3% at pH 6.5 is reached with a dose of 0.5 ml/l. However, when common bean natural coagulant was used simultaneously with alum, the highest turbidity removal resulting in 24% coagulation activity was achieved and this was more efficient than when alum or natural coagulant were used.
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