Palm oil mill effluent sludge ash as adsorbent for methylene blue dye removal
Palm oil mill effluent sludge ash as adsorbent for methylene blue dye removal
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DOI：
10.1080/19443994.2013.854041
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发表时间：
2014-06
影响因子：
1.1
通讯作者：
M. Zaini;Tee Yee Cher;Muaz Zakaria;M. Kamaruddin;S. Setapar;M. Yunus
中科院分区：
文献类型：
--
作者：
M. Zaini;Tee Yee Cher;Muaz Zakaria;M. Kamaruddin;S. Setapar;M. Yunus
摘要本研究旨在评估棕榈油厂废水污泥灰对水溶液中亚甲基蓝染料的吸附性质。从不同的处理池，即厌氧和生物抛光收集的两种类型的棕榈油厂废水污泥被烧成灰，并用5 M HCl处理。处理和未处理的吸附剂的特征在于表面积和形态。在室温下进行了亚甲基蓝染料的吸附实验，并根据平衡等温线和动力学模型对吸附数据进行了分析。灰吸附剂的表面积被发现增加超过12倍后，盐酸处理。记录的最高表面积为218 m2/g。灰吸附剂的平衡数据服从Langmuir等温线的线性近似表明亚甲基蓝染料的单层吸收。当亚甲基蓝染料初始浓度为200 μ g/L时，盐酸处理的生物抛光灰吸附剂对亚甲基蓝染料的最大吸附量为50.7 mg/g（去除50%）。
AbstractThis work was aimed to evaluate the adsorptive nature of palm oil mill effluent sludge ash for methylene blue dye removal in aqueous solution. Two types of palm oil mill effluent sludge collected from different treatment ponds, i.e. anaerobic and biopolishing were burnt to ash, and treated with 5 M HCl. The treated and untreated adsorbents were characterized for surface area and morphology. Methylene blue dye adsorption was carried out in laboratory at room temperature, and the adsorption data were analyzed based on equilibrium isotherm and kinetic models. The surface area of ash-adsorbents was found to increase more than 12 times after HCl treatment. The highest surface area recorded was 218 m2/g. Equilibrium data of ash-adsorbents obeyed Langmuir isotherm to linear approximation suggesting the monolayer uptake of methylene blue dye. The highest maximum uptake of 50.7 mg/g methylene blue dye (50% removal) was demonstrated by HCl-treated biopolishing ash-adsorbent at initial concentration of 200 m...