APPLICATION OF MODIFIED MAIZE HULL FOR REMOVAL OF Cu(II) IONS FROM AQUEOUS SOLUTIONS

被引：31

作者：

Ghasemi, Seyed Mehdi ^{[1
]}

Mohseni-Bandpei, Anoshirvan ^{[1
]}

Ghaderpoori, Mansour ^{[2
]}

Fakhri, Yadollah ^{[1
]}

Keramati, Hassan ^{[3
]}

Taghavi, Mahmoud ^{[4
]}

Moradi, Bigard ^{[5
]}

Karimyan, Kamaladdin ^{[6
,7
]}

机构：

[1] Shahid Beheshti Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran

[2] Lorestan Univ Med Sci, Fac Hlth & Nutr, Dept Environm Hlth Engn, Khorramabad, Iran

[3] Semnan Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Semnan, Iran

[4] Shahid Sadoghi Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Yazd, Iran

[5] Kermanshah Univ Med Sci, Dept Hlth Publ, Kermanshah, Iran

[6] Kurdistan Univ Med Sci, Environm Hlth Res Ctr, Sanandaj, Iran

[7] Univ Tehran Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran

来源：

ENVIRONMENT PROTECTION ENGINEERING | 2017年 / 43卷 / 04期

关键词：

HEAVY-METAL IONS; WASTE-WATER; COPPER(II) IONS; ADSORPTION; EQUILIBRIUM; BIOSORPTION; ADSORBENTS;

D O I：

10.5277/epe170408

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Discharge of industrial waste containing heavy metals to the environment is a main concern because of their toxicity to many life forms. Adsorption process is one of the conventional methods in order to adsorb heavy metals from wastewater effluents. Therefore, the removal of Cu(II) from aquatic solutions using modified maize hull was investigated. All experiments were performed in batch conditions. The residual Cu(II) concentration was measured by AAS. Upon increasing the adsorbent dosage, pH, and contact time and decreasing Cu(II) concentration, the removal efficiency of Cu(II) ions increased. In optimum conditions, 50% of copper was removed by modified maize hull. The experimental data were best fitted by the Langmuir type 2 model and the adsorption kinetic model followed a pseudo-second order type 1 model. It seems that the use of the modified maize hull to remove Cu(II) ions is very suitable, low-cost, and efficient.

引用

页码：93 / 103

页数：11

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