On the performance of Ballota undulata biomass for the removal of cadmium(II) ions from water

被引：27

作者：

Al-Shannag, Mohammad ^{[1
]}

Al-Qodah, Zakaria ^{[2
,3
]}

Nawasreh, Mansour ^{[4
]}

Al-Hamamreh, Zayed ^{[1
]}

Bani-Melhem, Khalid ^{[5
]}

Alkasrawi, Malek ^{[6
]}

机构：

[1] Univ Jordan, Sch Engn, Chem Engn Dept, Amman 11942, Jordan

[2] Taibah Univ, Chem Engn Dept, Medina, Saudi Arabia

[3] Al Balqa Appl Univ, Chem Engn Dept, POB 340558, Amman 11134, Jordan

[4] Al Balqa Appl Univ, Dept Basic Appl Sci, POB 340558, Amman 11134, Jordan

[5] Hashemite Univ, Fac Nat Resources & Environm, Dept Water Management & Environm, Al Zarqa, Jordan

[6] Univ Wisconsin, Fac Nat Resources, Dept Paper Sci & Engn, Stevens Point, WI 54481 USA

来源：

DESALINATION AND WATER TREATMENT | 2017年 / 67卷

关键词：

Biosorption; Ballota undulata; Kinetic models; Isotherms; HEAVY-METAL IONS; AQUEOUS-SOLUTION; WASTE-WATER; CD(II) ADSORPTION; ACTIVATED-SLUDGE; BIOSORPTION; COPPER; ACID; LEAD; EQUILIBRIUM;

D O I：

10.5004/dwt.2017.20379

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, cadmium ions, Cd(II), were removed from aqueous solutions using Ballota undulata. Experimental data were exploited for kinetic and thermodynamic assessments related to adsorption processes. The different variables affecting the adsorption capacity such as pH, contact time, temperature, adsorbent particle size and mass of adsorbent have been studied. Adsorption isotherms were correlated well with the Langmuir isotherm model. The maximum monolayer adsorption capacity was 121.1 mg/g, which is higher than other adsorbents reported. The kinetic data were best described by pseudo-second-order model. The adsorption process was exothermic-spontaneous to indicate its feasibility.

引用

页码：223 / 230

页数：8

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