Journal
ENVIRONMENTAL FORENSICS 2015
Volume 30, Issue -, Pages 56-61Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proenv.2015.10.010
Keywords
dye wastewater; hybrid coagulants; pollution; statistics; waste
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Hybrid coagulants, aluminium sulphate-Aloe vera (ALAV) and magnesium sulphate-Aloe vera (MGAV) were prepared for the primary treatment of methylene blue (MB) dye wastewater treatment through coagulation-flocculation process. The effects of the independent factors and their interaction on the dye removal (%) were determined using two independent factors, i.e. pH and dosage based on 22 full factorial design. All the independent factors and their interaction were significant in removing dye. The dye removal (%) for both ALAV and MGAV were then optimized through central composite design. ALAV was able to remove 50-55% of dye while MGAV was able to remove 60-70% of dye. Therefore, MGAV was proven to be a more effective hybrid coagulant in removing dye. (C) 2015 The Authors. Published by Elsevier B.V.
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