Removal of lead, cadmium, zinc, and copper from industrial wastewater by carbon developed from walnut, hazelnut, almond, pistachio shell, and apricot stone

Kazemipour, Maryam; Ansari, Mehdi; Tajrobehkar, S H; Majdzadeh, Majdeh; Kermani, Hamed Reihani

doi:10.1016/j.jhazmat.2007.04.118

Cited by 246 publications

(116 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The optimal pH was found to be 7.0. Similar observations were reported on the studies on removal of Cu on PHW [13]. …”

Section: A Effect Of Phsupporting

confidence: 90%

“…Thus, the sorption process was identified as endothermic in nature [10]. Since adsorbent is porous and possibilities of diffusion adsorbate cannot be ruled out, increase in the sorption with the rise of temperature may be diffusion controlled which is endothermic process [13]- [15]. Other researcher [10] also observed similar temperature effects on metal sorption studies.…”

Section: Effect Of Temperaturementioning

confidence: 81%

“…It can be observed from the figure that the removal of Hg (II) increases with increase in pH from 28 to 92% over pH range from 3.0 to 9.0. This increase in pH may be due to the presence of negative charge on the surface of the adsorbent that may be responsible for metal binding [13]. Decreased removal efficiencies at lower pH is due to the hydrogen ions competition with the metal ions for the sorption sites in the sorbent.…”

Section: A Effect Of Phmentioning

confidence: 99%

“…exchangeable sites to remove the ions [13]. The phenomenon of increasing removal of Hg (II) with increase in adsorbent dose may be explained as with increase in adsorbent dose, more and more surface area become available for metal ion to adsorb and this increased the removal efficiency [15].…”

Section: International Journal Of Chemical Engineering and Applicatiomentioning

confidence: 99%

See 3 more Smart Citations

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Rajamohan¹

2014

IJCEA

View full text Add to dashboard Cite

Abstract-Batch parametric experiments were performed to study the applicability of protonated pistachio hull waste as a sorbent with respect to the effect of pH of the solution, initial metal concentration, sorbent dosage and temperature on the metal removal efficiency. Optimum conditions for mercury removal were found to be pH 7.0 and adsorbent dose -1.0 g/L .The metal uptake increased with increase in the initial concentration of the metal. The sorption process was identified as endothermic in nature favouring use of high temperature. The kinetic studies revealed that pseudo-second order model fitted well and the constants were determined. The pseudo-second order rate constant and maximum uptake capacity were found as 1.99 × 10 -3 g mg -1 min -1 and 48.78 mg g -1 with 50 mg L -1 metal concentration. Thermodynamic studies were conducted and the activation energy for the adsorption of mercury onto was found to be 10.26 KJ/ mol. Index Terms-Absorbent, metal removal, pistachio hull waste.

show abstract

“…The optimal pH was found to be 7.0. Similar observations were reported on the studies on removal of Cu on PHW [13]. …”

Section: A Effect Of Phsupporting

confidence: 90%

Section: Effect Of Temperaturementioning

confidence: 81%

Section: A Effect Of Phmentioning

confidence: 99%

Section: International Journal Of Chemical Engineering and Applicatiomentioning

confidence: 99%

See 2 more Smart Citations

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Rajamohan¹

2014

IJCEA

View full text Add to dashboard Cite

show abstract

“…Some of the trace elements play essential roles in biological processes, but at higher concentration, they may be toxic to the biota, and they disturb the biochemical processes and cause health hazards (Kazemipour et al 2008;Arivoli et al 2008). Therefore, the removal of heavy metals is necessary before effluents depositions entering into environment.…”

Section: Introductionmentioning

confidence: 99%

Removal of copper ions from aqueous solution using silica derived from rice straw: comparison with activated charcoal

Sharaf

Hassan

2013

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The batch removal of copper(II) ions from aqueous solution under different experimental conditions using alkali-leached silica and activated charcoal was investigated in this study. The copper(II) uptake was dependent on varying time, pH, copper concentration and temperature. Copper sorption was found fast reaching equilibrium within 1 h with better performance for alkalileached silica than charcoal. Copper sorption was low at low pH values and increased with rise in initial pH-value until 6.7. Sorption fits well the Langmuir and Freundlich equations with higher uptake by increasing temperature. According to Langmuir equation, the maximum uptake of Cu(II) ions by alkali-leached SiO 2 and charcoal was found to be 242.5 and 94.4 mmol/g at temperature 60°C and pH 6. Thermodynamic studies confirm that the process was spontaneous and endothermic nature. Kinetic data for Cu(II) sorption was found to follow pseudo-second-order model.

show abstract

Agro‐Waste Applications for Bioremediation of Textile Effluents

Kiran¹,

Ahmad²,

Gulzar³

et al. 2020

Recycling From Waste in Fashion and Textiles

View full text Add to dashboard Cite

Removal of lead, cadmium, zinc, and copper from industrial wastewater by carbon developed from walnut, hazelnut, almond, pistachio shell, and apricot stone

Cited by 246 publications

References 24 publications

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Removal of copper ions from aqueous solution using silica derived from rice straw: comparison with activated charcoal

Agro‐Waste Applications for Bioremediation of Textile Effluents

Contact Info

Product

Resources

About