Application of biodegradable natural polymers for flocculated sedimentation of clay slurry

S., Chakrabarti and S., Banerjee and B., Chaudhuri and S., Bhattacharjee and B.K., Dutta (2008) Application of biodegradable natural polymers for flocculated sedimentation of clay slurry. Bioresource Technology, 99 (8). pp. 3313-3317. ISSN 9608524

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Tamarind seed kernel powder (TSKP) is a cheap starchy biodegradable material that has not been tested before for its flocculating properties. Sedimentation of clay slurry has been studied using this material. We have also done experiments with chemical grade starch and its blends with TSKP and compared their performance with that of potash alum for sedimentation of the clay slurry. The sedimentation phenomenon showed constant and falling rate zones. Sedimentation velocity, mass flux and concentration have been calculated at different time intervals for all the flocculants. Among the three types of natural flocculants, starch showed the highest rate constant in the constant rate zone and TSKP offers faster sedimentation in the falling rate zone. Thus TSKP, starch and their blends are potentially attractive environmentally benign flocculants. A qualitative explanation of the flocculating property of TSKP has been given. © 2007.

Item Type:Article
Uncontrolled Keywords:Computation theory; Concentration (process); Flocculation; Sedimentation; Clay slurry; Natural flocculants; Sedimentation rate; Tamarind seed kernel powder (TSKP); Water clarification; Water treatment; aluminum potassium sulfate; amylopectin; amylose; polymer; starch; Computation theory; Concentration (process); Flocculation; Sedimentation; Water treatment; biodegradation; clay; comparative study; evergreen tree; flocculation; polymer; sedimentation; seed; slurry; article; biodegradability; clay; controlled study; flocculation; nonhuman; priority journal; protein structure; sedimentation rate; seed kernel; tamarind; Alum Compounds; Aluminum Silicates; Biocompatible Materials; Carbohydrates; Indicators and Reagents; Kinetics; Materials Testing; Powders; Seeds; Tamarindus; Tamarindus indica
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:538
Deposited By: Prof Dr Binay Kanti Dutta
Deposited On:09 Mar 2010 02:07
Last Modified:19 Jan 2017 08:26

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