Use of various agricultural wastes for the removal of heavy metal ions

Kahraman, Sibel; Dogan, Nukhet; Erdemoğlu, Sema

doi:10.1504/ijep.2008.020797

Cited by 28 publications

(13 citation statements)

References 22 publications

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“…Their report indicated that the maximum adsorption capacity of Ni(II) ions reached 94.86 mg/g at an initial Ni(II) ions concentration of 0.0032 mol/L, a solution pH of 6.8, temperature of 70°C, and contact time of 40 min. Kahraman et al (2008) examined the use of cotton stalk and apricot seed as alternative adsorbents for the removal of Pb and Cu. The treatment of Pb and Cu with these agricultural wastes was reported to reduce their toxic effects on P. aeruginosa.…”

Section: Discussion Open Accessmentioning

confidence: 99%

Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Babalola¹,

Babalola²,

Akintayo³

et al. 2019

Preprint

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Abstract. In this study, the adsorption of Ni(II) and Cu(II) ions from aqueous solutions by powdered pods and leaves of Delonix regia was investigated by batch adsorption techniques. The effects of operating conditions such as pH, contact time, metal ions concentration and the presence of sodium ions interfering on the sorption process were investigated. The results obtained showed that the equilibrium sorption was attained within 30 min of interaction and the adsorption process followed the pseudo-second-order kinetic model for all the metal sorption with the exception of Cu(II) sorption on the leaves. The equilibrium data fitted well with both the Langmiur and Freundlich Isotherms; the desorption study revealed that the percentage of metal ions recovered from the pods were higher than the leaves at various concentration of nitric acid. This study has proven that Delonix regia biomass, an agro-waste could be used for removing Ni(II) and Cu(II) ions from wastewater.

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Section: Discussion Open Accessmentioning

confidence: 99%

Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Babalola¹,

Babalola²,

Akintayo³

et al. 2019

Preprint

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“…Such conclusion can be amply seen from Table 3. 83,85,94,95,[127][128][129][132][133][134]136,138,142,157,162,165,174,176,180,181,185,200,201 The chemical modification of the surface can greatly alter the adsorption capacity as the adsorption process is a surface phenomenon where metal ions are adsorbed onto the surface of the adsorbent. Chemical activation involves a pretreatment scheme where the charred material obtained from carbonization is mixed with a chemical before the activation process.…”

Section: Methods Of Preparation Of Low Cost Ac and Activation Conditionsmentioning

confidence: 99%

A Critical Analysis on the Efficiency of Activated Carbons from Low-Cost Precursors for Heavy Metals Remediation

Gupta

Nayak

Bhushan

et al. 2014

Critical Reviews in Environmental Science and Technology

103

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A vast array of industrial waste products, agricultural by-products, and biological materials, such as bacteria, algae, yeasts, and fungi have received increased attention for heavy metal removal and recovery due to their good performance, low cost, and availability in large quantities. Such materials are cheaper, more effective alternatives to commercial activated carbon (AC) for the removal of heavy metals from aqueous solution. The authors review in greater detail the various factors affecting the adsorption capacity and cost efficiency based on the literatures and present research results. Special emphasis has been made on nature of the precursors, their pretreatment and modification, the activation conditions of time and temperature, pH of aqueous media, and regeneration/reuse potential. The authors present some of the latest important results and give a source of up-to-date literature on the ACs prepared from various low-cost precursors from agro-industrial wastes as well as from biological materials. The evolution of adsorption has turned from an interesting alternative approach into a powerful standard technique by offering a numbers of advantages: better performance in terms of ulterior adsorption capacity, rate of adsorption, solving wastewaters pollution in a cost-effective way, and overcoming part of the solid wastes problem around the world. Various advantages and challenges have been identified and a widespread and great progress in this area can be expected in the future.

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“…Increasing the pH leads to precipitation of insoluble hydroxide or hydrated oxide, thereby lowering the metal ion availability for sorption. On the other hand, a decrease in pH results in the increase in the hydrogen ion concentration and hence possible competition for binding sites [20]. …”

Section: Effects Of Ph On Sorption Capacity Of Ibccmentioning

confidence: 99%

“…Therefore, the need exists for a treatment strategy that is simple and robust and that addresses local resources and constraints [20]. Sorption operations, including adsorption and ion exchange, are a potential alternative for water and wastewater treatment [21].…”

Section: Introductionmentioning

confidence: 99%

Studies on the removal of metal ions from aqueous solution using Immobilized Bombax costatum calyx

Osemeahon¹

2013

IOSR-JESTFT

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Use of various agricultural wastes for the removal of heavy metal ions

Cited by 28 publications

References 22 publications

Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

A Critical Analysis on the Efficiency of Activated Carbons from Low-Cost Precursors for Heavy Metals Remediation

Studies on the removal of metal ions from aqueous solution using Immobilized Bombax costatum calyx

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Use of various agricultural wastes for the removal of heavy metal ions

Cited by 28 publications

References 22 publications

Adsorption and Desorption studies of &lt;i&gt;Delonix regiapods&lt;/i&gt; and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Adsorption and Desorption studies of &lt;i&gt;Delonix regiapods&lt;/i&gt; and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

A Critical Analysis on the Efficiency of Activated Carbons from Low-Cost Precursors for Heavy Metals Remediation

Studies on the removal of metal ions from aqueous solution using Immobilized Bombax costatum calyx

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Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution

Adsorption and Desorption studies of <i>Delonix regiapods</i> and leaves: Removal and recovery of Ni(II) and Cu(II) ions from aqueous solution