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ARPN Journal of Science and Technology >> Volume 7, Issue 2, November 2017

ARPN Journal of Science and Technology

Effect of Guar Gum (Cyamopsis Tetragonolobus) Powdered as Natural Coagulant Aid with Alum on Drinking Water Treatment

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Author Omer R.M., El Hassan B.M., Hassan E.A., Sabahelkhier M.K.
ISSN 2225-7217
On Pages 1222-1228
Volume No. 3
Issue No. 12
Issue Date January 01, 2014
Publishing Date January 01, 2014
Keywords Guar gum, coagulant aid, alum, drinking water treatment.


This study was carried out to determine the effectiveness of guar gum as a coagulant aid with alum on treatment of Blue Nile water (drinking water) in Khartoum State during the flood period (July October 2007). The results showed that the highest efficiency for guar gum as a coagulant aid with alum especially at the mixture ratio of 1:1 (Guar: Alum mixture) at 30 min. sedimentation time, decrease the turbidity from 12050.0 NTU to 3.8 NTU in comparison with 192.0 NTU when using 120 mg/l alum alone, with their corresponding efficiencies 99.97% and 98.41% reduction of turbidity under similar conditions. Guar gum at different concentrations as coagulant aids it did not alter the physicochemical properties of water. The pH values ranged from 6.95 to 7.35 which is within the recommended range 6.5 8.5. Furthermore, overall operating costs can be significantly lowered when using guar gum as a natural coagulant aid with alum as well as reducing the health hazards.

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