Journal ArticleDOI
Use of Pistachio Shells as an Adsorbent for the Removal of Zinc(II) Ion
Nurdan Gamze Turan,Başak Mesci +1 more
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In this article, the removal of zinc(II) ion from an aqueous solution by pistachio shells (PS) is investigated, and the dynamic behavior of the adsorption is examined on the effects of pH, adsorbent dosage, and contact time.Abstract:
In this study, the removal of zinc(II) ion from an aqueous solution by pistachio shells (PS) is investigated. The dynamic behavior of the adsorption is examined on the effects of pH, adsorbent dosage, and contact time. The adsorption rates are determined quantitatively and simulated by the Lagergren first order, pseudo-second order, Elovich, and intra-particle diffusion kinetic models. The adsorption kinetic models are also tested for validity. The thermodynamic parameters, which are also deduced from adsorption experiments, are very useful in elucidating the nature of adsorption. The experimental results reveal that the optimum pH value and the contact time for the adsorption of Zn 2+ onto PS are found as 6 and 10 min, respectively. According to these parameters, adsorption process follows the pseudo-second order kinetic model with high correlation coefficients (R 2 = 0.999). The obtained results demonstrate that PS is a reasonably effective adsorbent for the removal of Zn 2+ from aqueous leachate of hazardous waste.read more
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Applicability of agricultural waste and by-products for adsorptive removal of heavy metals from wastewater.
T.A.H. Nguyen,Huu Hao Ngo,Wenshan Guo,Jian Zhang,Shuang Liang,Qinyan Yue,Qianxia Li,Tien Vinh Nguyen +7 more
TL;DR: This critical review discusses the potential use of agricultural waste based biosorbents for sequestering heavy metals in terms of their adsorption capacities, binding mechanisms, operating factors and pretreatment methods.
Journal ArticleDOI
Agricultural biomass/waste as adsorbents for toxic metal decontamination of aqueous solutions
Ioannis Anastopoulos,Ioannis Pashalidis,Ahmad Hosseini-Bandegharaei,Dimitrios A. Giannakoudakis,Artis Robalds,Muhammad Usman,Leticia Belén Escudero,Yaoyu Zhou,Juan Carlos Colmenares,Avelino Núñez-Delgado,Eder C. Lima +10 more
TL;DR: In this article, the use of agricultural biomass materials for the removal of toxic metal(oid)s from contaminated aqueous matrices is focused on using agricultural biomasses as precursors for the preparation of other adsorbents like biochar.
Journal ArticleDOI
A review on biosorptive removal of dyes and heavy metals from wastewater using watermelon rind as biosorbent
TL;DR: The feasibility of using watermelon rind as a reusable biosorbent has been further proved by the results of desorption studies performed by several researchers as mentioned in this paper, which revealed that pseudo second order kinetic model and Langmuir isotherm model were best suited for describing WMR based biosorption of dyes and heavy metals.
Journal ArticleDOI
Treatment of Wastewater Using Seaweed: A Review.
Nithiya Arumugam,Shreeshivadasan Chelliapan,Hesam Kamyab,Sathiabama T. Thirugnana,Norazli Othman,Noor Shawal Nasri +5 more
TL;DR: Biosorption using naturally found seaweeds has been proven to have promising results in removing pollutants, such as dyes from textile, paper, and the printing industry, nitrogen, and phosphorous and phenolic compounds, as well as heavy metals from various sources.
Journal ArticleDOI
Biosorption of zinc(II) on rapeseed waste: Equilibrium studies and thermogravimetric investigations
TL;DR: In this paper, the potential of rapeseed waste from biodiesel production as a biosorbent for Zn(II) ions was evaluated, and it was found that the zinc loaded rapeseed exhibits a better initial thermal stability than the original rapeseed, presumably due to the cross linking generated by the intermolecular complexation of ZnII ions.
References
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Journal ArticleDOI
A review of potentially low-cost sorbents for heavy metals
TL;DR: The use of low-cost sorbents has been investigated as a replacement for current costly methods of removing heavy metals from solution as mentioned in this paper, where natural materials or waste products from certain industries with a high capacity for heavy metals can be obtained, employed and disposed of with little cost.
Journal ArticleDOI
Kinetics and mechanism of removal of methylene blue by adsorption on various carbons—a comparative study
TL;DR: In this article, the kinetics and mechanism of methylene blue adsorption on commercial activated carbon and indigenously prepared activated carbons from bamboo dust, coconut shell, groundnut shell, rice husk, and straw, have been studied.
Journal ArticleDOI
Citation review of Lagergren kinetic rate equation on adsorption reactions
TL;DR: This study presents a literature review concerning the preciseness of over 170 publications citing the original Lagergren's paper in kinetics equation for solute adsorption on various adsorbents.
Journal ArticleDOI
Application of Elovich equation to the kinetics of phosphate release and sorption in soils.
S. H. Chien,W. R. Clayton +1 more
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