The Efficacy of Banana Peel Activated Carbon in the Removal of Cyanide and Selected Metals from Cassava Processing Wastewater

Olaoye, R. A.; Afolayan, O. D.; Mustapha, O. I.; Adeleke, H. G.

doi:10.9734/air/2018/43070

Cited by 20 publications

(12 citation statements)

References 26 publications

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“…Additional tests were carried out using calcinated yerba mate (CYM) [34] to evaluate the possible activation effect of waste on the adsorption of anionic species. The calcinated material was produced by treating the selected solid fraction in a muffle furnace at 600 • C for 1 h.…”

Section: Bio-adsorbent Preparationmentioning

confidence: 99%

Yerba Mate (Ilex paraguarensis) as Bio-Adsorbent for the Removal of Methylene Blue, Remazol Brilliant Blue and Chromium Hexavalent: Thermodynamic and Kinetic Studies

Mazzeo

Bavasso

Bracciale

et al. 2020

Water

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Yerba mate (Ilex paraguarensis, YM) was used as biomaterial for the removal of anionic and cationic compounds from wastewater. Chromium hexavalent Cr(VI), Remazol brilliant blue (RBB) and methylene blue (MB) were selected as pollutants. A calcination step was performed after the washing and drying steps to evaluate its effectiveness at increasing the adsorption capacity of the solid. Both YM and calcinated YM (CYM) were characterized by means of scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and Brunauer–Emmett–Teller (BET) analysis. Adsorption batch tests revealed that YM was ineffective for the removal of Cr(VI) and RBB, while good results were obtained for MB (up to 80%) without pH dependency of the adsorption process, and CYM was able to remove Cr(VI) (up to 77%) and RBB (up to 65%) but not MB. The adsorption isotherm of MB on YM at 298 K was obtained experimentally and it is well represented by the Langmuir isotherm. YM’s adsorption capacity for MB was estimated to be 59.6 mg/g. Kinetic batch tests were conducted and the experimental results were fitted with a mathematical model. The low influence of temperature compared to the influence of the YM concentration on the adsorption rate was explained.

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Section: Bio-adsorbent Preparationmentioning

confidence: 99%

Yerba Mate (Ilex paraguarensis) as Bio-Adsorbent for the Removal of Methylene Blue, Remazol Brilliant Blue and Chromium Hexavalent: Thermodynamic and Kinetic Studies

Mazzeo

Bavasso

Bracciale

et al. 2020

Water

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“…The Langmuir Cm parameter is related to the maximum adsorption capacity and KL or b with the adsorbent-adsorbate interaction forces. logqeq = log Kf + (1/n) logCeq (10) In which: Ceq or Ce is the concentration in the equilibrium and qeq or o Qe is the quantity adsorbed in the equilibrium per unity mass of the adsorbent. KF and n are two parameters of Freundlich model.…”

Section: Adsorption Equilibriummentioning

confidence: 99%

“…Generally, studies that develop alternative activated carbons aim to remove contaminants from the aquatic environment, among the studies of removal; the most studied contaminants are the toxic metals [10]. However, some agricultural wastes were not evaluated for their transformation into activated carbon and consequent removal capacity.…”

Section: Introductionmentioning

confidence: 99%

Removal of Pb2+ and Cd2+ From Contaminated Water Using Activated Carbon from Canola Seed Wastes

Gonçalves¹,

Schiller²,

Conradi³

et al. 2019

World Congress on New Technologies

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The objective of this work was to produce activated carbon chemically from canola seeds wastes and to apply the activated carbon produced in the sorption of Pb 2+ and Cd 2+ from contaminated water. The activation of the canola seeds wastes was performed with NaOH (1 mol L -1 ) for 6 h under constant stirring. Then the activated material was pyrolyzed for 1 h at 750 °C. The activated carbon was subjected to nitroperchloric digestion for the determination of P, K, Ca, Mg, Mn, Zn, Cu and Pb by flame atomic absorption spectrometry (FAAS). It was also realized the thermogravimetric evaluation (TG), infrared spectra (FT-IR), pHPCZ and scanning electron microscopy (SEM). The metals were evaluated for ideal amounts of adsorbent dose and pH and kinetic, thermodynamic and equilibrium parameters. The mass and pH results demonstrated that four grams of adsorbent is needed to decontaminate one liter of contaminated solution. Linearization were obtained by the mathematical models of Langmuir, Freundlich and D-R, with high capacity of removal of both metals. Thus, using canola waste to produce activated carbon it is possible to add value to the canola seed wastes, also, it contributes directly with the economic, social and environmental sustainability of this productive system.

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“…The use of locally sourced agricultural by-products like moringa, orange peel, cassava peel, orange peel, banana peel, plum leaves, guava fruits etc. [10,11], natural clay minerals [12], composite nano-fibrous material [13] and carbon as materials for adsorbent have gained wide application for the removal of pollutants and heavy metals.…”

mentioning

confidence: 99%

Remediation of Heavy Metals from Galvanic Wastewater Using Cow Bone Char as Low Cost Adsorbent

Olaoye

Ojoawo

Bamigbade

et al. 2021

IJEE

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The adhesion of metal ions from wastewater to surface of a material in an adsorption process had proven to be effective for remediation of wastewater before discharge. There is a growing demand to utilize alternative low-cost adsorbents for the removal of heavy metals from galvanic wastewater in most developing countries. Cow bones are cheap, readily available and can be sourced locally from slaughterhouses and abattoir. Therefore, their use as an alternative adsorbent for remediation of galvanic wastewater had to be assessed. In this study, the efficacy of cow bone char (CBC) was assessed for simultaneous heavy metal ions removal from real life galvanic wastewater in a competitive adsorption process. The galvanic wastewater was characterized using atomic adsorption spectrophotometry while the CBC was characterized using X-ray Fluorescence (XRF), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR). Batch experiment was performed to determine the effect of adsorbent dose, contact time and agitation speed on the removal efficiency of heavy metal ions from the galvanized wastewater. The concentrations of Mn 2+ , Fe 2+ , Zn 2+ , Pb 2+ and Cr 2+ in the raw wastewater exceeded the WHO and EPA standards. The adsorbent revealed a significant distribution of well-developed porous, rough surfaces with cracks characterized by different functional groups for the efficient adsorption process. The optimum adsorbent dose for all the metal ions was 0.04 g/100 mL at an optimum contact time of 60 minutes except for Fe 2+ with optimum contact time of 20 minutes, and agitation speed of 150 rpm. The maximum metal removal efficiencies obtained for Mn 2+ , Fe 2+ , Zn 2+ , Pb 2+ and Cr 2 were 99.7%, 100%, 99%, 90% and 85% + , respectively. The average adsorption capacity for Mn 2+ , Fe 2+ , Zn 2+ , Pb 2+ and Cr 2+ were 0. 44 mg/g, 26.7 mg/g, 78.5 mg/g, 0.133 mg/g for and 10.36 mg/g, respectively. CBC offers efficient and cost-effective removal of selected metal ions from galvanized wastewater.

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The Efficacy of Banana Peel Activated Carbon in the Removal of Cyanide and Selected Metals from Cassava Processing Wastewater

Cited by 20 publications

References 26 publications

Yerba Mate (Ilex paraguarensis) as Bio-Adsorbent for the Removal of Methylene Blue, Remazol Brilliant Blue and Chromium Hexavalent: Thermodynamic and Kinetic Studies

Yerba Mate (Ilex paraguarensis) as Bio-Adsorbent for the Removal of Methylene Blue, Remazol Brilliant Blue and Chromium Hexavalent: Thermodynamic and Kinetic Studies

Removal of Pb2+ and Cd2+ From Contaminated Water Using Activated Carbon from Canola Seed Wastes

Remediation of Heavy Metals from Galvanic Wastewater Using Cow Bone Char as Low Cost Adsorbent

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