The simultaneous removal of calcium, magnesium and chloride ions from industrial wastewater using magnesiumaluminum oxide

被引：12

作者：

Hamidi, Roya ^{[1
]}

Kahforoushan, Davood ^{[1
]}

Fatehifar, Esmaeil ^{[1
]}

机构：

[1] Sahand Univ Technol, Inst Environm Engn Water & Sustainable Dev, Tabriz, Iran

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2013年 / 48卷 / 10期

关键词：

Magnesium-aluminum oxide; agglomerate; simultaneously; mineral pollutants removal; LAYERED DOUBLE HYDROXIDE; ALUMINUM-OXIDE; MG-AL; HYDROCHLORIC-ACID; AQUEOUS-SOLUTIONS; DISTILLER WASTE; ANION-EXCHANGE; ADSORPTION; KINETICS;

D O I：

10.1080/10934529.2013.776855

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this article, a method for simultaneous removal of calcium, magnesium and chloride by using Mg0.80Al0.20O1.10 as a Magnesium-Aluminum oxide (MgAl oxide) was investigated. MgAl oxide obtained by thermal decomposition of the MgAl layered double hydroxide (MgAl LDH). The synthesized MgAl oxide were characterized with respect to nitrogen physicosorption, X-ray diffraction (XRD) and field emission scan electron microscopy (FESEM) morphology. Due to high anion-exchange capacity of MgAl oxide, it was employed in simultaneously removal of Cl, Mg+2 and Ca+2 from distiller waste of a sodium carbonate production factory. For this purpose, experiments were designed to evaluate the effects of quantity of MgAl oxide, temperature and time on the removal process. The removal of Cl, Mg+2 and Ca+2 from wastewater was found 93.9%, 93.74% and 93.25% at 60 degrees C after 0.5h, respectively. Results showed that the removal of Cl, Mg+2 and Ca+2 by MgAl oxide increased with increasing temperature, time and MgAl oxide quantity.

引用

页码：1225 / 1230

页数：6

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