Research Progress on Biosorption of Heavy Metal Ions by Agricultural Waste Materials

Zhang, Wei Jiang; Hu, Jing; Xu, Jun; Li, Yun Hui

doi:10.4028/www.scientific.net/amr.550-553.2338

Cited by 2 publications

(2 citation statements)

References 80 publications

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“…In recent years, low-cost agricultural products, such as rubber tree leaf powder (10), banana peels (11), orange peel (12), citrus peels (13), grapes stalks (14), Mangosteen shells (15), corncobs (16), and cashew nut shell (17) have been widely studied for heavy metal ion removal from aqueous solution. Moreover, there has been an increasing interest in using agricultural by-products to remove heavy metal ions (18,19).…”

Section: Introductionmentioning

confidence: 99%

Removal of Cu(II), Cr(III), and Cr(VI) from Aqueous Solution using a Novel Agricultural Waste Adsorbent

Lin

Wang

Duan

et al. 2013

Separation Science and Technology

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A novel adsorbent, chufa corm peels (CCP), is used for removing Cu(II), Cr(III), and Cr(VI) from aqueous solutions. The adsorption ability and characteristics of the CCP are thoroughly investigated. The adsorption capability for three heavy metal ions is in the order of Cu(II) > Cr(III) > Cr(VI). The morphology and elemental distribution on the biomass of CCP were evaluated by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). Fourier-transform infrared spectroscopy (FTIR) analysis revealed that oxygen-containing functional groups, especially carboxylic and hydroxyl groups were responsible for chemical coordination between ionizable functional groups and metal ions. The adsorption features were evaluated based on the batch biosorption experiment. The results showed that the adsorption well meets the Freundlich adsorption isotherm models and pseudo-second-order kinetics model. In summary, this work demonstrated that CCP is an attractive, efficient, and low-cost adsorbent biomaterial that can be used for the removal of heavy metals from environmental contaminations.

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Section: Introductionmentioning

confidence: 99%

Removal of Cu(II), Cr(III), and Cr(VI) from Aqueous Solution using a Novel Agricultural Waste Adsorbent

Lin

Wang

Duan

et al. 2013

Separation Science and Technology

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“…In the complex operating process, large numbers of chemical reagents and distilled water are consumed for repeated immersion and washing. Furthermore, the biological structure of OP is easily destroyed [23], which is challenging to ensure the stability of adsorption performance and reuse. Thereby, the disadvantages of time consuming and low yield indicate that the modification method is not advisable under certain conditions.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Performance of La(III) and Y(III) on Orange Peel: Impact of Experimental Variables, Isotherms, and Kinetics

Liu

Rao

Tian

et al. 2021

Adsorption Science & Technology

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To alleviate the environmental problem associated with rare earth wastewater, this research applied waste orange peel (OP) for the adsorption of La(III) and Y(III) from aqueous solution. The adsorption properties of orange peel are characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), and the participation of hydroxyl and other oxygen-containing groups that promote the physical-chemical interaction is verified. Batch adsorption results suggest that orange peel possesses a satisfactory adsorption performance for La(III) and Y(III). The optimal adsorption conditions were obtained at pH of 6, temperature of 40°C, appropriate dosage of 2 g/L and 3 g/L, contact time of 30 min, and initial ion concentration of 32 mg/L. Under the same condition, adsorption performance of La(III) is better than that of Y(III). The experimental data is well fitted by the Langmuir isotherm model with correlation coefficient R 2 > 0.9 and the minimum standard error values. Equilibrium results show that Langmuir monolayer adsorption capacity of La(III) and Y(III) onto orange peel is up to 37.61 and 31.10 mg/g. The fitting results of kinetics prove that the adsorption process of La(III) and Y(III) follows the pseudosecond-order model. Thus, natural orange peel as a recyclable biosorbent has potential economic and applicative benefits to remove La(III) and Y(III) from aqueous solutions.

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Research Progress on Biosorption of Heavy Metal Ions by Agricultural Waste Materials

Cited by 2 publications

References 80 publications

Removal of Cu(II), Cr(III), and Cr(VI) from Aqueous Solution using a Novel Agricultural Waste Adsorbent

Removal of Cu(II), Cr(III), and Cr(VI) from Aqueous Solution using a Novel Agricultural Waste Adsorbent

Adsorption Performance of La(III) and Y(III) on Orange Peel: Impact of Experimental Variables, Isotherms, and Kinetics

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