Fluoride removal using activated red mud

被引：1
|
作者：
Mohan, Devendra [1 ]
Goyal, Harsh [2 ]
Kushwaha, Rohit [1 ]
Markandeya, Sheo Prasad [1 ]
Shukla, Sheo Prasad [3 ]
Srivastava, Vikas [4 ]
机构：
[1] Banaras Hindu Univ, Indian Inst Technol, Civil Engn Dept, Varanasi, India
[2] Aditya Birla Capital, New Delhi, India
[3] Rajkiya Engn Coll, Banda 210201, India
[4] Sam Higginbottom Univ Agr Technol & Sci, Civil Engn Dept, Prayagraj, India
来源：
ENVIRONMENTAL QUALITY MANAGEMENT | 2024年 / 33卷 / 04期
关键词：
activated red mud; adsorption; fluoride; groundwater; X-ray fluorescence; AQUEOUS-SOLUTION; ADSORPTION; WATER; DEFLUORIDATION; CARBON;
D O I：
10.1002/tqem.22112
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Groundwater contamination with fluoride is a cause of concern worldwide. This study was aimed to explore the feasibility of activated red mud (ARM) for adsorption of fluoride from aqueous solutions. The morphology of the adsorbent was characterized using scanning electron microscope and elemental composition was analyzed using X-ray fluorescence. Parameters such as pH and adsorbent dose were optimized to achieve maximum removal efficiency. Maximum removal efficiency of 96% was obtained at pH 7 with an adsorbent dose of 20 g/L. The isotherm and kinetic studies revealed that Langmuir isotherm and pseudo-second-order kinetic models best explained the adsorption process. The study established that ARM could be an environment-friendly and efficient adsorbent for the removal of fluoride from water.
引用
收藏
页码：559 / 566
页数：8
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