Adsorption of selected metals from cassava processing wastewater using cow-bone ash

Olaoye, R. A.; Afolayan, O. D.; Adeyemi, K.A.; Ajisope, L.O.; Adekunle, Olusola

doi:10.1016/j.sciaf.2020.e00653

Cited by 13 publications

(19 citation statements)

References 23 publications

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“…A study then made nitrogenous biochar from the bone by implementing a ball-milling technique, and it informed that this breakthrough was effective by reaching satisfactory heavy metals reduction [42]. Moreover, other study revealed that cow bonebased sorbent could be an ideal option for purifying raw cassava wastewater as it could obtain high adsorption capacity for several heavy metals removal using at least 0.02 g of this sorbent dosage [88]. Compared to any available commercial sorbents, the outcome aforementioned was highly competitive.…”

Section: Cow Bonementioning

confidence: 99%

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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In this review article, the recent development of organic sorbents derived from plant and animal waste for treating polluted aqueous media is presented. The application of biomass has been recognized reliable to adsorb hazardous pollutants contained in wastewater generated by emerging industries. This paper also discusses other existing technologies for removing pollutants including heavy metals, dyes, oil and grease, antibiotic and phenolic compounds from polluted aqueous media. Furthermore, several prominent examples of plant and animal wastes such as eucalyptus bark, pine bark, rice husk, various fruit peels, and animal bones are also properly reviewed. The effects of modification techniques on sorbent performance such as carbonization, pyrolysis, and chemical impregnation using acid or alkaline chemicals are considerably included. Some gaps in current literature are also discussed including the tendency of certain targeted pollutants, the use of simulated aqueous media, the scale of research projects, and the prominent modification procedures. Eventually, based on the relevant literature, clear conclusion has been drawn that these natural disposals have great potentiality as environmentally friendly sorbent alternative to other commercial expensive sorbents, and their reuse has been part of green solutions supporting a circular economy system.

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Section: Cow Bonementioning

confidence: 99%

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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“…The bone charred produced were further reduce by grinding using ceramic ball mill grinded and was sieved with 125 µm sieve to obtain the fine powdered form. The method for the preparation of the cow bone char is as stated in our previous work [14]. Characterization of the cow bone char was performed in accordance to procedures outlined in the Association of Official Analytical Chemist (AOAC) [24].…”

Section: Preparation Of Cow Bone and Characterization Of Cow Bone Charmentioning

confidence: 99%

“…The adsorbents produced were characterized by physical and chemical properties. The elemental content of the adsorbent was determined with X-ray Fluorescence (XRF), Scanning Electron Microscope (SEM, model: JEOL JSM-6380LA ) was employed to determine the surface morphology of the adsorbent while Fourier transform infrared spectrometer FTIR (Perkin Elmer) was used to determine the characteristics of the functional groups on the adsorbent surface as outlined in our previous work [14].…”

Section: Preparation Of Cow Bone and Characterization Of Cow Bone Charmentioning

confidence: 99%

“…The batch experiment was performed in triplicates in accordance to the steps outlined in previous study [2,14].…”

Section: Batch Experiments Proceduresmentioning

confidence: 99%

“…Presently, there is paucity of research on the use of animal bone for remediation of heavy metals from real time galvanic wastewater. Among the various carbonaceous materials used as absorbent, animal/ cowbone had been reported to be effective for removing a variety of pollutants, such as heavy metals and dyes from aqueous solutions due to its high surface area, welldeveloped internal micro-porosity, and a broad spectrum of surface functional groups [14]. Globally, increasing demand for meat has resulted in the generation of large amounts of cow-bone waste [15,16].…”

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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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Cassava bagasse as an alternative biosorbent to uptake methylene blue environmental pollutant from water

Diehl

Silva

Schnorr

et al. 2023

Environ Sci Pollut Res

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Herein, the methylene blue (MB) biosorption from the agroindustrial residue (cassava bagasse) is reported. The cassava bagasse residue presented an irregular surface, anionic character, and low specific surface area. The experiments were performed in batch mode. The biosorption behavior was investigated through the experimental variables, initial concentration of MB, pH, and temperature. The maximum biosorption capacity (170.13 mg g −1 ) reached 328 K and pH 10.0. The equilibrium and kinetics were better fitted by the Sips and general order (R 2 ≥ 0.997 and R 2 adj ≥ 0.996) models, respectively. Furthermore, the thermodynamic study revealed a spontaneous (ΔG 0 < 0) and endothermic process. Finally, the results showed cassava bagasse is a potential material for biosorption dyes from the aqueous medium. In addition, the biosorbent has a low aggregate cost and high availability, which contributes to the destination of large amounts of waste and inspires engineering applications.

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Adsorption of selected metals from cassava processing wastewater using cow-bone ash

Cited by 13 publications

References 23 publications

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

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

Cassava bagasse as an alternative biosorbent to uptake methylene blue environmental pollutant from water

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