Fruit Peels as a Sustainable Waste for the Biosorption of Heavy Metals in Wastewater: A Review

Gómez-Aguilar, Dora Luz; Rodríguez-Miranda, Juan Pablo; Salcedo-Parra, Octavio José

doi:10.3390/molecules27072124

Cited by 21 publications

(11 citation statements)

References 54 publications

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“…Water is the main food source for all living organisms, and the increasing demand for drinking water parallels the rapid population and industrial growth during the past few decades. One environmental challenge currently negatively affecting the ecosystem is the continuous discharge of untreated industrial waste into both water sources and soils [1]. Water pollution is an increasingly harmful global crisis to the Earth through irreplaceable human activities.…”

Section: Introductionmentioning

confidence: 99%

Study of the Use of Banana Peels Powder in Removing some Heavy Metals

Sedrah,

Alshamary

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The ability of banana peel powder to remove lead, copper, and nickel was studied, and it was found that treating the peel powder with HCl acid increased the efficiency of the adsorption process for banana peel powder treated with acid at a concentration of 10%, as the removal percentage reached 45%, 30% and 25% for lead, copper, and nickel, respectively. As for the untreated banana peel powder, the removal percentage was 32%, 21%, and 18%. As for the treatment of banana peel powder with the base as NaOH at a concentration of 10%, it reached 20%, 15%, and 12% for each lead, copper, and nickel, respectively. When banana peel powder was treated with 40% acid, the removal percentage was 68%, 53%, and 44% for lead, copper, and nickel, respectively. The percentage of metal removal increased with increasing pH from 2 to 4, as the percentage of removing at pH 2 reached 41%, 29%, and 25%, and at pH 3 reached 65%, 40%, and 33% to reach the best removal rates at pH 4, which reached 75, 55 and 58% for lead, copper, and nickel respectively. The rates of metal removal then decreased with increasing pH, as the removal rate at pH 5 reached 69%, 46%, and 47%, at pH 6 reached 67%, 50%, and 45%, and at pH 7 reached 40%, 39% and 37% for lead, copper, and nickel, respectively.

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Section: Introductionmentioning

confidence: 99%

Study of the Use of Banana Peels Powder in Removing some Heavy Metals

Sedrah,

Alshamary

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Agricultural waste materials in particular have been widely researched as potential adsorbents for metal removal from contaminated water sources [14][15][16]. Some of these adsorbents include the use of spent tea leaves [17], fruit peels [18] and banana peel powder [19]. The recycling of waste materials is considered a sustainable approach towards waste management practices serving to solve disposal problems which aligns with the circular economy [20].…”

Section: Introductionmentioning

confidence: 99%

The Dynamic Behaviour of a Binary Adsorbent in a Fixed Bed Column for the Removal of Pb2+ Ions from Contaminated Water Bodies

Harripersadth

Musonge

2022

Sustainability

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In the search for a technically efficient and abundant adsorbent in water treatment processes, a bio-composite adsorbent derived from agricultural wastes has been identified as a potential candidate. In this study, eggshells and sugarcane bagasse were combined in varied proportions (1:0, 1:3, 1:1, 3:1 and 0:1) and applied as biosorbents in a lab-scale adsorption column. The effect of bed depth (4–12 cm) of the biosorbents was investigated which enabled the prediction of breakthrough curves for the removal of Pb (II) ions. The life span of the column was extended by increasing the bed depth of the column. The binary adsorbent of 1:3 weight ratio of <75 µm particle size showcased the highest removal efficiency of 91% at a bed depth of 12 cm. The mass transfer zone (MTZ) increased with increasing bed depth with a minor portion of the bed left unused, signifying that the process was highly efficient. The Thomas model constant, KTh, decreased with increasing bed depth with the maximum amount of Pb adsorbed being 28.27 mg/g. With the Yoon–Nelson model, KYN decreased with an increase in τ as the bed height increased. In this study, a novel approach was adopted where the proposed methodology enabled the use of a bio-composite adsorbent in heavy metal removal. The findings of this research will aid in the design and optimisation of the pilot-scale operation of environmentally friendly treatment options for metal laden effluent.

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“…Anderson et al [ 6 ] highlighted the importance of biodegradable materials as a promising class of sorbents, opening future scenarios for the abatement of polluting cations in wastewater. To this purpose, many different materials of vegetal origin have been proposed in the literature [ 7 ], including fruit peels [ 8 ], pine bark [ 9 ], rice husk [ 10 ] and many other plant derivatives, in natural or modified forms [ 11 ], which may represent a challenging strategy of combining pollution control with a recovery of an otherwise useless or even noxious by-products.…”

Section: Introductionmentioning

confidence: 99%

ZnAl-SO4 Layered Double Hydroxide and Allophane for Cr(VI), Cu(II) and Fe(III) Adsorption in Wastewater: Structure Comparison and Synergistic Effects

et al. 2022

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Owing to their structure, layered double hydroxides (LDHs) and allophane are nowadays considered as promising materials for application in different fields. The goal of this work is to compare the efficacy of allophane and ZnAl-SO4 LDH to remove, by adsorption, some cationic and anionic pollutants from industrial wastewater. Both compounds were synthesized via the co-precipitation route (direct method) followed by hydrothermal treatment, obtaining nanoscopic crystallites with a partially disordered turbostratic (ZnAl-SO4 LDH) or amorphous (allophane) structure. The characterization of the obtained compounds was performed by means of powder x-ray diffraction (PXRD), thermal gravimetry analysis (TGA), field emission scanning electron microscopy analysis (FESEM), and Fourier-transform infrared spectroscopy (FT-IR). The sorbents were tested using wastewater produced by a real metalworking plant and containing ionic species such as Cu(II), Fe(III) and Cr(VI), whose concentration was measured by means of inductively coupled plasma-optical emission spectrometry (ICP-OES). This investigation represents an alternative procedure with respect to standard protocols based on customarily made and artificially lab-produced wastewaters. Both sorbents and their combination proved to be efficient in Cr(VI) removal, irrespective of the presence of cations like Cu(II) and Fe(III). A synergistic effect was detected for Cu(II) adsorption in a mixed allophane/LDH sorbent, leading to a Cu(II) removal rate of 89.5%.

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Fruit Peels as a Sustainable Waste for the Biosorption of Heavy Metals in Wastewater: A Review

Cited by 21 publications

References 54 publications

Study of the Use of Banana Peels Powder in Removing some Heavy Metals

Study of the Use of Banana Peels Powder in Removing some Heavy Metals

The Dynamic Behaviour of a Binary Adsorbent in a Fixed Bed Column for the Removal of Pb2+ Ions from Contaminated Water Bodies

ZnAl-SO4 Layered Double Hydroxide and Allophane for Cr(VI), Cu(II) and Fe(III) Adsorption in Wastewater: Structure Comparison and Synergistic Effects

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