Orange peel as an adsorbent in the removal of Acid violet 17 (acid dye) from aqueous solutions

被引：519
|
作者：
Sivaraj, R [1 ]
Namasivayam, C [1 ]
Kadirvelu, K [1 ]
机构：
[1] Bharathiar Univ, Dept Environm Sci, Coimbatore 641046, Tamil Nadu, India
来源：
WASTE MANAGEMENT | 2001年 / 21卷 / 01期
关键词：
orange peel; adsorption; adsorption kinetics; adsorption isotherms; desorption;
D O I：
10.1016/S0956-053X(00)00076-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The effectiveness of orange peel in adsorbing Acid violet 17 from aqueous solutions has been studied as a function of agitation time, adsorbent dosage, initial dye concentration and pH. The adsorption follows both Langmuir and Freundlich isotherms. The adsorption capacity Q(0) was 19.88 mg/g at initial pH 6.3. The equilibrium time was found to be 80 min for 10, 20, 30 and 40 mg/L, dye concentration respectively. A maximum removal of 87% was obtained at pH 2.0 for an adsorbent dose of 600 mg/50 ml of 10 mg/L dye concentration. Adsorption increases with increase in pH. Maximum desorption of 60% was achieved in water medium at pH 10.0. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：105 / 110
页数：6
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