Biosorption of heavy metals on Citrus maxima peel, passion fruit shell, and sugarcane bagasse in a fixed-bed column

Chao, Huan‐Ping; Chang, Chung‐Cheng; Nieva, Aileen D.

doi:10.1016/j.jiec.2013.12.027

Cited by 136 publications

(72 citation statements)

References 26 publications

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“…Assuming that metal cation exchange is the mechanism, the adsorption efficiency would be proportional to the metal ionic radius. As shown in Table , the % removal of divalent cations was in the following order: Pb > Cd > Co > Ni > Cu, which is in a quite good match with their ionic radii . Presence of functional groups with oxygen or nitrogen with their nonbonding electrons provides a suitable pathway for coordination with the metal cations.…”

Section: Resultsmentioning

confidence: 99%

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Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

El-Azazy

Kalla

Issa

et al. 2019

Env Prog and Sustain Energy

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Pomegranate peels (PGP) were tested as a green adsorbent for the removal of Ni(II) from contaminated water samples. Both raw (RPG), and char/burnt peels (BPG) were tested. A multivariate analysis approach, Box–Behnken (BB) design was executed to augment the efficiency of BPG as adsorbent. Three factors were considered thereof; contact time (CT), adsorbent dose (AD), and heavy metal concentration (HMC). The percentage of heavy metal removal was the designated response (Y). Main effects plot together with analysis of variance (ANOVA) were used to decide on the substantial factors. Obtained results showed that AD was the most significant linear factor, while the interaction between AD*HMC was the most influential two‐way interaction. Contour and response surface plots were used to study the factorial interactions and optimize the response. Desirability function was used to find the best factorial combination for maximum removal of Ni(II). Efficacies of both adsorbents were compared and BPG was more effectual achieving 99.99% removal of Ni(II). Surface morphology was characterized using FTIR, BET, SEM, and EDX analyses. Results indicated that functional groups such as hydroxyl, amino, carboxylic acid are available on surface of PGP and might be responsible for the adsorption process. © 2019 American Institute of Chemical Engineers Environ Prog, 38: e13223, 2019

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Section: Resultsmentioning

confidence: 99%

“…Two main scenarios are usually proposed for the adsorption mechanism; ion-exchange (supported by presence of cation exchange sites) and complexation (reinforced by presence of functional groups such as COOH and OH on the surface) [37]. A combination of both mechanisms was also suggested [38].…”

Section: Rpgmentioning

confidence: 99%

Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

El-Azazy

Kalla

Issa

et al. 2019

Env Prog and Sustain Energy

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“…According to the FTIR spectra, it can be concluded that the surface of the biosorbent possesses a wide variety of functional groups. This agrees with the work of Chao et al, who state that sub‐products generated by agriculture usually have different functional groups, such as alcohols, aldehydes, ketones, carboxylates, phenols, and ethers, possibly due to the presence of lignin and cellulose in their composition.…”

Section: Resultsmentioning

confidence: 99%

Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Homem

Vieira

2018

Can J Chem Eng

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A low‐cost biosorbent based on Moringa oleifera Lam (MO) seed husks was used in order to remove atrazine (ATZ) from aqueous solutions in a continuous system. The influence of some parameters, such as bed depth, flow rate, pH, and inlet concentration, on ATZ biosorption was investigated. The breakthrough and saturation time increased with the increase of bed depth. However, the opposite behaviour was observed for the flow rate. The sorption capacity, breakthrough, and saturation time were similar at all values of pH tested. Increasing the inlet concentration, the MO sorption capacity also increased, while the breakthrough and saturation time decreased. The Adams‐Bohart, Thomas, dose‐response, and Yoon‐Nelson models were applied to predict the breakthrough curves. All models showed good agreement with the experimental data, presenting good values of the correlation coefficient (R2). The results showed that MO seed husks can be effectively used as a biosorbent to remove the atrazine in aqueous solutions, achieving five cycles of biosorption‐desorption without loss of biosorption capacity, which demonstrates the potential of MO as a biosorbent for the removal of ATZ being a low‐cost and efficient alternative to the use of conventional materials.

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“…Chao et al (2014) and Chatterjee and Schiewer (2014) enhanced the adsorption capacity by treatment of solvent extraction and alginate-immobilization of CP, respectively. Marín et al (2009), Zou et al (2013, Sreenivas et al (2014), andCastro et al (2011) used OP, grapefruit peel (GFP), ash gourd peel, and BP, respectively, without any successful treatment.…”

Section: Column Adsorption Studiesmentioning

confidence: 99%

Fruit peel waste as a novel low-cost bio adsorbent

Pathak

Mandavgane

Kulkarni

2015

Reviews in Chemical Engineering

124

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AbstractFruit peel waste (FPW) is abundantly available from the agricultural and food processing industry and has been studied in recent past as an adsorbent. This paper critically reviews the reported work and investigates various FPW-pollutant systems. The study includes statistics of FPW generation, modification, characterization, adsorption ability, recovery/regeneration, and modeling (isotherms, kinetics, and thermodynamics) of batch adsorption. It is found that orange and banana peels are the most extensively studied adsorbents, whereas Pb

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Biosorption of heavy metals on Citrus maxima peel, passion fruit shell, and sugarcane bagasse in a fixed-bed column

Cited by 136 publications

References 26 publications

Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Fruit peel waste as a novel low-cost bio adsorbent

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