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Preliminary study of rambutan (Nephelium lappaceum) seed as potential biocoagulant for turbidity removal


Citation

Zainal Abidin, Zurina and Mohamed, Mohd Fadzli and Abdullah, Abdul Ghani Liew (2014) Preliminary study of rambutan (Nephelium lappaceum) seed as potential biocoagulant for turbidity removal. Advanced Materials Research, 917. pp. 96-105. ISSN 1022-6680; ESSN: 1662-8985

Abstract

This experiment was performed to determine the ability of the coagulation performance of rambutan seed in comparison to alum for potential use in turbidity removal in water and wastewater treatment industry. Experiments were conducted to find the optimum operating conditions for coagulation process such as coagulant dosage and pH and also suitable extracting solvent for the active agent (distilled water, NaCl and NaOH). 1 M NaCl was found to be an effective solvent for extracting the active coagulant agent in rambutan seed and gave about 99 % turbidity removal. The optimum rambutan seed dosages and pH was 100 mg/l and pH 3, resulting in > 90% turbidity removal. In order to reduce dependency on alum, 50% alum and 50% rambutan seed as coagulant combination was used in the order of alum first followed by rambutan seed. The highest turbidity removal of 99% was achieved compared to when using alum (91%) and seed (88%) alone. Rambutan seed coagulant exhibited faster sedimentation time due to bigger flocs formation and also smaller sludge volume than alum. The results suggest potential of using rambutan biomass as biocoagulant.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.4028/www.scientific.net/AMR.917.96
Publisher: Trans Tech Publications
Keywords: Alum; Natural coagulant; Protein; Rambutan seed; Solvent; Turbidity
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 11 Oct 2016 02:41
Last Modified: 11 Oct 2016 02:41
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.4028/www.scientific.net/AMR.917.96
URI: http://psasir.upm.edu.my/id/eprint/35004
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