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Abstract
Layered double hydroxide of Mg-Al-carbonate system (MACH) was prepared and its heat-treated product (MACHT) was obtained by calcination at 500°C. The resulting materials were used as an adsorbent for removal of color from synthetic textile wastewater (STW) and textile wastewater (TWW). Batch kinetic study showed that these materials are an efficient adsorbent for textile dye. The maximum adsorption capacities between 16 to 32 mg of dyes per g of adsorbent was obtained by fitting the adsorption data to the Langmuir adsorption Isotherm. It was found that the adsorption capacity of MACHT is higher than MACH.
ACKNOWLEDGMENTS
The support of this research by Ministry of Science, Technology and Environment, Malaysia under IRPA Grant No. 02-04-09-0027 is gratefully acknowledged. We also thank Kima Sdn. Bhd. for the samples.