Opportunities and constraints of using the innovative adsorbents for the removal of cobalt(II) from wastewater: A review

Islam, Md. Aminul; Morton, David W.; Johnson, Bruce B.; Pramanik, Biplob Kumar; Mainali, Bandita; Angove, Michael J.

doi:10.1016/j.enmm.2018.10.003

Cited by 45 publications

(17 citation statements)

References 222 publications

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“…Many types of natural materials or agricultural and (or) organic industrial waste [14][15][16] have been used for the removal of Co(II) ions from aqueous solution, but unfortunately none of these have been applied so far to industrial wastewater treatment. One possible explanation might be that most of these materials have moderate sorption capacities, which makes the treatment of industrial effluents requiring a large amount of such sorbent materials [17].…”

Section: Introductionmentioning

confidence: 99%

Potential Use of Biochar from Various Waste Biomass as Biosorbent in Co(II) Removal Processes

Lucaci

Bulgariu

Ahmad

et al. 2019

Water

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The removal of Co(II) ions from aqueous media was done using three types of biochars obtained from algae waste biomass, mustard waste biomass, and soy waste biomass. The biochar samples were obtained by pyrolysis of waste biomass resulted from biofules production, at relative low temperature (600–650 °C), and this procedure can be considered a suitable alternative to reduce the volume of such waste. FTIR spectra recorded for each type of biochar reveal the presence of several functional groups that can be used as binding sites for Co(II) retention. The batch biosorption experiments were performed as a function of initial Co(II) ions concentration and contact time, at constant solution pH (5.0), sorbent dose (8.0 g/L), and room temperature (25 ± 1 °C). The sorption experiments showed that the Co(II) ions retention reaches the equilibrium in maximum 60 min, and the maximum sorption capacity follows the order: Mustard biochar (MBC—24.21 mg/g) < soy biochar (SBC—19.61 mg/g) < algae biochar (ABC—11.90 mg/g). The modeling of experimental data proves that the retention of Co(II) ions from aqueous solution occurs through electrostatic interactions, and that the sorption process takes place until a monolayer coverage is formed on the outer surface of the biochar. This information is very useful in the design of a suitable desorption system. The desorption results showed that by treating the biochar samples loaded with Co(II) ions with 0.1 mol/L HNO3 solution, over 92% of Co(II) ions are desorbed and can be recovered, and the biochar samples can be used in at least three sorption/desorption cycles. All the experimental observations sustain the potential use of biochar obtained from different types of waste biomass as a promising alternative sorbent for the removal of Co(II) ions from aqueous media.

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Section: Introductionmentioning

confidence: 99%

Potential Use of Biochar from Various Waste Biomass as Biosorbent in Co(II) Removal Processes

Lucaci

Bulgariu

Ahmad

et al. 2019

Water

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“…The occurrence of cobalt pollution is mainly originated from many human activities, especially ore mining, electroplating, and battery manufacturing (Liu et al 2019b). According to World Health Organization, the permissible concentration of Co(II) ions in drinking water is very low, at 0.05 mg/L (Islam et al 2018). Because cobalt reflects high toxicity and bio-accumulative nature, the treatment of cobalt pollution in water is very necessary.…”

Section: Cobaltmentioning

confidence: 99%

Invasive plants as biosorbents for environmental remediation: a review

et al. 2022

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Water contamination is an environmental burden for the next generations, calling for advanced methods such as adsorption to remove pollutants. For instance, unwanted biowaste and invasive plants can be converted into biosorbents for environmental remediation. This would partly solve the negative effects of invasive plants, estimated at 120 billion dollars in the USA.Here we review the distribution, impact, and use of invasive plants for water treatment, with emphasis on the preparation of biosorbents and removal of pollutants such as cadmium, lead, copper, zinc, nickel, mercury, chromate, synthetic dyes, and fossil fuels. Those biosorbents can remove 90-99% heavy metals from aqueous solutions. High adsorption capacities of 476.190 mg/g for synthetic dyes and 211 g/g for diesel oils have been observed. We also discuss the regeneration of these biosorbents.

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“…For the removal of metals from water, conventional techniques include sorption, membrane filtration, coagulation, precipitation, ion‐exchange and biological (Abdullah et al, 2019; Ali et al, 2018; Bora & Dutta, 2019; Islam et al, 2018; Meena et al, 2019). Recently, polymer inclusion membranes (PIMs) are becoming an alternative because of their efficient separation of various impurities from water.…”

Section: Introductionmentioning

confidence: 99%

Prediction of heavy metals removal by polymer inclusion membranes using machine learning techniques

Yaqub

Eren

Eyüpoğlu

2021

Water & Environment J

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This study predicts heavy metals removal from aqueous solution by polymer inclusion membranes (PIMs) process using machine learning (ML) techniques such as multiple layer perceptron neural networks (MLPNN) and multiple linear regression (MLR) after data analysis. The removal efficiency (RE) of the PIMs process is predicted for cobalt (Co), cadmium (Cd) and chromium (Cr) by changing operating conditions including time, carrier type, carrier rate, film thickness, plasticizer type and plasticizer rate. The MLPNN model presents reliable results with lower mean square error (MSE) for an unseen testing dataset, whereas the MLR model shows higher MSE values. The coefficient of determination (R2) of the MLPNN model for the testing dataset is 0.93, 0.90 and 0.86 for Co, Cd and Cr, respectively, whereas MLR shows poor results. Therefore, the MLPNN model can be a competitive, robust and fast alternate to optimize the PIMs process with minimum experimental work.

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Opportunities and constraints of using the innovative adsorbents for the removal of cobalt(II) from wastewater: A review

Cited by 45 publications

References 222 publications

Potential Use of Biochar from Various Waste Biomass as Biosorbent in Co(II) Removal Processes

Potential Use of Biochar from Various Waste Biomass as Biosorbent in Co(II) Removal Processes

Invasive plants as biosorbents for environmental remediation: a review

Prediction of heavy metals removal by polymer inclusion membranes using machine learning techniques

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