The removal of dye colours from aqueous solutions by adsorption on low-cost materials
The removal of dye colours from aqueous solutions by adsorption on low-cost materials
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DOI：
10.1023/a:1005197308228
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发表时间：
1999-09-01
影响因子：
2.9
通讯作者：
Prasad, GR
中科院分区：
文献类型：
--
作者：
McKay, G;Porter, JF;Prasad, GR
研究了五种低成本吸附剂（稻壳、棉花、树皮、头发和煤炭）吸附两种碱性染料（即番红和亚甲蓝）的能力。使用朗缪尔方程确定和分析了平衡等温线。对于树皮、稻壳、棉屑、毛发和煤炭来说，藏红素的单层饱和容量分别为1119、838、875、190和120 mg g(-1)，亚甲基蓝的单层饱和容量分别为914、312、277、158和250 mg g(-1)。已经进行了有限数量的固定床柱研究，并且已经确定了每个染料吸附系统的床深度使用时间。
The ability of five low cost adsorbents - rice husk, cotton, bark, hair and coal - to adsorb two basic dyes, namely, Safranine and Methylene Blue, has been studied. Equilibrium isotherms have been determined and analysed using the Langmuir equations. The monolayer saturation capacities for Safranine are 1119, 838, 875, 190 and 120 mg g(-1) adsorbent and for Methylene Blue are 914, 312, 277, 158 and 250 mg g(-1) adsorbent for bark, rice husk, cotton waste, hair and coal respectively. A limited number of fixed bed column studies have been performed and the bed depth service time for each dye-adsorbent system has been determined.