Adsorption of zinc by a Tunisian Smectite through a filtration membrane

Mhamdi, Mohsen; Elaloui, Elimame; Trabelsi‐Ayadi, Malika

doi:10.1016/j.indcrop.2013.03.003

Cited by 23 publications

(6 citation statements)

References 55 publications

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“…Natural adsorbents are advantageous since these materials are low-cost, highly efficient and easily applicable due to their adaption to different conditions of pH, temperature, pressure and agitation [17]. The development of alternative adsorbent materials featuring low costs, high availability, feasibility and high adsorption capacities is required [18].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

et al. 2016

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Abstract:The objective of this work was to evaluate the removal of Cu 2+ and Zn 2+ in water by means of the adsorption process using three biosorbents derived from jatropha biomass (bark, endosperm and endosperm + seed coat). The experiments were performed in batch and evaluated the effect of solution pH, adsorbent mass, contact time, different initial concentrations of the metals Cu 2+ and Zn 2+, and the temperature of the solution during the adsorptive process. By kinetics, the adsorption isotherms and thermodynamics the mechanisms that control the adsorptive process were evaluated. The optimal conditions for the realization of the adsorptive process for both metals were: solution pH of 5.0 and 8 g L -1 of adsorbent mass per volume of solution, with a contact time between adsorbent and adsorbate of 60 min. According to the Langmuir model, the maximum adsorption capacities for the bark, endosperm and endosperm + seed coat of Jatropha were, respectively, for Cu 2+ 11.541, 20.475 and 22.910

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Section: Introductionmentioning

confidence: 99%

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

et al. 2016

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“…Other research [24,[31][32][33][34] has also reported the better fit of the pseudo-second order model for data on Zn(II) adsorption, although for adsorbents other than the ACTH. For designing of the adsorption process, it is useful to determine the underlying adsorption mechanism by analyzing the rate controlling steps, such as mass transport and chemical reaction processes.…”

Section: Kinetic Behaviormentioning

confidence: 88%

The behaviors and characteristics of a mesoporous activated carbon prepared from Tamarix hispida for Zn(II) adsorption from wastewater

Khademi

Ramavandi

Ghaneian

2015

Journal of Environmental Chemical Engineering

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“…Based on that evidence, research studies have been firmly embedded on the recovery of valuable minerals from AMD [19,23]. There are several mechanisms used for the recovery of chemical components from AMD including: precipitation [35], adsorption [36], biosorption [24], ion exchange [19,25,26], desalination [37] and membrane filtration [38,39]. Out of those techniques, precipitation has been the promising technology due to the ability to handle large volumes of water with very little dosage [35].…”

Section: Case Study Of South Africa Acid Mine Drainagementioning

confidence: 99%

Environmental Contamination by Heavy Metals

Masindi¹,

Muedi²

2018

Heavy Metals

601

377

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The environment and its compartments have been severely polluted by heavy metals. This has compromised the ability of the environment to foster life and render its intrinsic values. Heavy metals are known to be naturally occurring compounds, but anthropogenic activities introduce them in large quantities in different environmental compartments. This leads to the environment's ability to foster life being reduced as human, animal, and plant health become threatened. This occurs due to bioaccumulation in the food chains as a result of the nondegradable state of the heavy metals. Remediation of heavy metals requires special attention to protect soil quality, air quality, water quality, human health, animal health, and all spheres as a collection. Developed physical and chemical heavy metal remediation technologies are demanding costs which are not feasible, time-consuming, and release additional waste to the environment. This chapter summarises the problems related to heavy metal pollution and various remediation technologies. A case study in South Africa mines were also used.

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Adsorption of zinc by a Tunisian Smectite through a filtration membrane

Cited by 23 publications

References 55 publications

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

Adsorption of Cu (II) and Zn (II) from Water by Jatropha curcas L. as Biosorbent

The behaviors and characteristics of a mesoporous activated carbon prepared from Tamarix hispida for Zn(II) adsorption from wastewater

Environmental Contamination by Heavy Metals

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