Removal of ammoniacal nitrogen and COD from semi-aerobic landfill leachate using low-cost activated carbon zeolite composite adsorbent

被引：38

作者：

Halim, Azhar Abdul ^{[1
]}

Aziz, Hamidi Abdul ^{[1
]}

Johari, Megat Azmi Megat ^{[1
]}

Ariffin, Kamar Shah ^{[2
]}

Hung, Yung-Tse ^{[3
]}

机构：

[1] School of Civil Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Engineering Campus

[2] School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Engineering Campus

[3] Department of Civil and Environmental Engineering, Cleveland State University, Cleveland, OH 44115

来源：

International Journal of Environment and Waste Management | 2009年 / 4卷 / 3-4期

关键词：

Adsorption isotherm; Ammoniacal nitrogen; Chemical oxygen demand; COD; Composite adsorbent; Leachate treatment; Physico-chemical treatment; Semi-aerobic landfill leachate;

D O I：

10.1504/IJEWM.2009.027404

中图分类号：

学科分类号：

摘要：

A carbon-zeolite composite adsorbent has been studied for COD and ammoniacal nitrogen removal in semi-aerobic landfill leachate. The optimum conditions for adsorption in the batch study occurred at pH 7, shaking speed of 200 rpm, and contact time of 105 min. The Langmuir isotherms corresponded slightly better than Freundlich isotherm for both ammoniacal nitrogen and COD removals. The Langmuir adsorption capacities for ammonia and COD were 27.47 mg/g and 22.99 mg/g, while the Freundlich adsorption capacities were 0.4227 mg/g and 0.0642 mg/g, respectively. The overall rate of the ammonia and COD adsorption processes appears to be dominated by chemisorption process. Copyright © 2009, Inderscience Publishers.

引用

页码：399 / 411

页数：12

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