Please use this identifier to cite or link to this item: https://ptsldigital.ukm.my/jspui/handle/123456789/779012
Title: Green refined laterite soil as advanced high efficient natural coagulant for removal of cationic dye and anionic dye
Authors: Yen-Yie Lau
Yee-Shian Wong
Tjoon-Tow Teng
Soon-An Olga
Conference Name: International Conference on Environmental Research and Technology
Keywords: Laterite soil
Natural coagulant
Decolorization
Methylene blue
Methyl orange
Conference Date: 2015-05-27
Conference Location: Park Royal Penang Resort, Penang, Malaysia
Abstract: Application of green environment technology to treat industrial wastewater is an approaching contemporary phenomenon. In this study, silicon (Si), aluminum (Al) and iron (Fe)-rich laterite soil was applied as a natural coagulant to treat cationic dye (methylene blue), anionic dye (methyl orange) and their mixture (combination of methylene blue and methyl orange). Laterite soil showed the best performance at pH 2 and optimum dosages of coagulant used in the removal of colour were: methylene blue at 5.5 g/L with 99.61% removal, methyl orange at 31 g/L with 92.11 % removal, mixed dye at 17.5 g/L with 98.53% removal. The breakage of bond structures was monitored using Fourier Transform Infrared Spectrophotometry (FT-IR). Significant sludge yielded laid in the best range of standard sludge volume index (SVI) (methylene blue at 18.692 mL/g, methyl orange at 26.769 mL/g and mixed dye at 22.181 mL/g).
Pages: 75
Call Number: GE5.I538 2015 katsem
Publisher: School of Industrial Technology, USM
URI: https://ptsldigital.ukm.my/jspui/handle/123456789/779012
Appears in Collections:Seminar Papers/ Proceedings / Kertas Kerja Seminar/ Prosiding

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