Comparative study of the adsorption capacity of lead (II) ions onto bean husk and fish scale from aqueous solution

Onwordi, C. T.; Uche, Cosmas Chinedu; Ameh, Alechine E.; Petrik, Leslie

doi:10.2166/wrd.2019.061

Cited by 21 publications

(5 citation statements)

References 35 publications

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“…In this study, two well-known adsorption equations (Langmuir and Freundlich) were used to correlate the experimental adsorption data. The Langmuir isotherm model explains that the adsorbate adsorbed onto the surface of the adsorbent form a monolayer, whereas the Freundlich model describes the multilayer adsorption [27]- [29].…”

Section: Resultsmentioning

confidence: 99%

Activated Carbon from Palmyra Palm Peel as an Alternative Adsorbent for Removing Heavy Metal Ions Fe(III) and Cr(VI) in Industrial Waste

Prastuti¹,

Kurniati²,

Septiani³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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Palmyra palm peel served as raw material for preparing activated carbon. In addition to its high cellulose content, palmyra palm shells are also easily found in Gresik and Tuban, East Java. Palmyra palm shell is also an abundant solid waste with low economic value, so using palmyra palm shells as raw material for activated carbon production is low cost to reduce the contaminant in liquid waste. This experiment aims to determine the effectiveness of palmyra palm peel as a bio-adsorbent for heavy metal ions Fe(III) and Cr(VI) in industrial waste. This research was conducted through 3 processes: chemical activation, carbonization, and adsorption. The methods used in this study consisted of pre-treatment, activation of raw materials, manufacture of standard solutions, calibration of standard solutions, and adsorption of heavy metals from textile waste. The carbons' activation was conducted at 600 and 700 o C in the presence of KOH as the activating agent. The results are a water content of 17.50% and an ash content of 8.37%. The moisture content and ash produced results comply with the SII and SNI 06-3730-1995 standards. The carbon produced at 700 o C has a better adsorption performance than that produced at 600 o C. The maximum removal efficiency for Fe(III) was 95.25, and Cr(VI) was 89.7%. Two wellknown equations, Langmuir and Freundlich, were used to correlate the experimental adsorption data. Langmuir equation could represent the data better than Freundlich with an R 2 value close to unity.

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Section: Resultsmentioning

confidence: 99%

Activated Carbon from Palmyra Palm Peel as an Alternative Adsorbent for Removing Heavy Metal Ions Fe(III) and Cr(VI) in Industrial Waste

Prastuti¹,

Kurniati²,

Septiani³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…Legume processing by-products are of particular interest for pollutants removal due to a large amount of proteins which have various functional groups in their composition and react with HMI. It was shown that bean (Phaseolus vulgaris) pod shells effectively remove ions of Pb 2+ [11,12], Cd 2+ and Hg 2+ [12], Ni 2+ and Zn 2+ [13] and other metals. Fava bean (Vicia faba) pod shells are reported are an effective sorption material for removal of such ions as Co 2+ [14], Cd 2+ and Pb 2+ from aqueous media [15] and soybeans husk helps remove Cr(VI) ions [16].…”

Section: Methodsmentioning

confidence: 99%

Nickel (ii) Ion adsorption by native and treated pea pods

Shaikhieva,

Galimova,

Stepanova

et al. 2023

E3S Web of Conf.

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The paper describes a study on static Ni2+ ions adsorption by native and treated shells of pea pods (Pisum sativum). Pea pod shells were treated with 1-3% sulfuric acid or sodium hydroxide solutions. Adsorption isotherms were constructed and calculated according to the Langmuir, Freundlich, Tyomkin, and Dubinin-Radushkevich models. It was found that all constructed isotherms were most accurately described by the Freundlich model. It was determined that the highest sorption capacity for Ni2+ ions was shown by 3% sulfuric acid solution-treated pea pods. The paper also describes a study of the kinetics of Ni2+ ion adsorption by native and treated pea pod shells under static conditions. It was determined that the main mechanism of the process is mixed diffusion. The calculated thermodynamic parameters indicate physical adsorption.

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“…The breakthrough point (P b ) is then identified giving the maximum loading of the biomass and the time that takes to reach this is called breakthrough time (T b ). The adsorption capacity at breakthrough is calculated according to Equation (1), where C o (mg/L) is the initial concentration of metal ions, V is the volume of the solution (L), m is the mass of adsorbent (g), and q is the amount of heavy metals ions adsorbed per weight unit of adsorbent (mg/g) [ 40 ].

…”

Section: Methodsmentioning

confidence: 99%

Adsorption Study of Continuous Heavy Metal Ions (Pb2+, Cd2+, Ni2+) Removal Using Cocoa (Theobroma cacao L.) Pod Husks

2022

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The serious toxicological effects of heavy metal ions in aquatic ecosystems have motivated the search for alternatives to reduce contamination of water sources from industrial wastewater. In this work, continuous adsorption of nickel, cadmium, and lead was assessed using a packed bed column filled with Cocoa (Theobroma cacao L.) pod husks widely available in the northern region of Colombia. The physicochemical characterization of the agricultural biomass was performed to quantify its chemical composition by bromatological, FT-IR, and energy-dispersive X-ray spectroscopy (EDS). The breakthrough curves were constructed for all heavy metal ions with bed depth of 4 and 7.5 cm, taking aliquots at 10, 30, 60, 90, 120, 150, 180, 210, 240, and 270 min. Moreover, experimental data were fitted to adsorption models in continuous mode to predict adsorptive performance (Adams–Bohart, Thomas, and Yoon–Nelson). For the FT-IR analysis of biomass before and after adsorption, the most representative bands occur around 3200–3900 cm−1 attributed to the presence of hydroxyl groups, showing the destruction of the peaks of lignocellulosic materials. The breakthrough curves revealed that for a 7.5 cm bed, adsorption performance reported the following order of promising results: Pb2+ > Ni2+ > Cd2+; while for a 4 cm bed, Pb2+ > Ni2+. The mechanism of adsorption of the evaluated metals onto cocoa pod husk was attributed to cationic exchange and microprecipitation due to the presence of Ca, K, and Si in the structure of the bio-adsorbent. Finally, the continuous adsorption was modeled under the mathematical expressions of Adams–Bohart, Thomas, and Yoon–Nelson reporting good fitting with correlation coefficient above 0.95.

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Comparative study of the adsorption capacity of lead (II) ions onto bean husk and fish scale from aqueous solution

Cited by 21 publications

References 35 publications

Activated Carbon from Palmyra Palm Peel as an Alternative Adsorbent for Removing Heavy Metal Ions Fe(III) and Cr(VI) in Industrial Waste

Activated Carbon from Palmyra Palm Peel as an Alternative Adsorbent for Removing Heavy Metal Ions Fe(III) and Cr(VI) in Industrial Waste

Nickel (ii) Ion adsorption by native and treated pea pods

Adsorption Study of Continuous Heavy Metal Ions (Pb2+, Cd2+, Ni2+) Removal Using Cocoa (Theobroma cacao L.) Pod Husks

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