Quaternized wood as sorbent for reactive dyes |
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Authors: | Kun-She Low Chnoong-Kheng Lee Bee-Foong Tan |
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Institution: | (1) Chemistry Department, Faculty of Science and Environmental Studies, Universiti Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia |
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Abstract: | Various species of local wood modified with N-(3-chloro-2-hydroxypropyl)-trimethylammonium chloride showed sorption enhancement for hydrolyzed Reactive Blue 2 (HRB) compared
to the untreated samples. The enthalpy of sorption of HRB on Simpoh (Dillenia suffruticosa) was found to be endothermic. Maximum sorption capacity calculated from the Langmuir isotherm was 250.0 mg/g. Under continuous
flow conditions HRB could be successfully removed. Dye removal was a function of bed depth and flow rate. However, the bed
depth service time model of Bohart and Adams was not applicable in the HRB-quaternized wood system. The modified wood was
applied to a sample of industrial textile effluent, and it was found to be able to remove the color successfully under batch
conditions. |
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Keywords: | Wood chemical modification biosorption reactive dyes |
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