Progress and challenges in batch and optimization studies on the adsorptive removal of heavy metals using modified biomass-based adsorbents

Adegoke, Kayode Adesina; Akinnawo, Solomon Oluwaseun; Ajala, Oluwaseyi Aderemi; Adebusuyi, T. A.; Maxakato, Nobanathi Wendy; Bello, Olugbenga Solomon

doi:10.1016/j.biteb.2022.101115

Cited by 11 publications

(5 citation statements)

References 106 publications

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“…Following a chemical treatment, Wang and Li [ 134 ] found that kiwifruit fiber treated with NaOH has greater thermal stability, but kiwifruit fiber treated with citric acid delivers higher sorption capacities for water, oil, bile acid, nitrite ions, and glucose. In this regard, Adegoke and Akinnawo [ 135 ] employed numerous surface-modification treatments, such as acid, alkaline, magnetic, and grafting modifications, for improving sorption of heavy metals, including As, Cd, Cr, Cu, Co, Fe, Hg, Mn, Ni, Pb, and Zn. They revealed that acidic treatment mostly favors the sorption process.…”

Section: Fibrous Plant-based Food Waste For Sorbing Heavy Metalsmentioning

confidence: 99%

Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater—A Review

Karim,

Raji,

Karam

et al. 2023

Molecules

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Mobilization of heavy metals in the environment has been a matter of concern for several decades due to their toxicity for humans, environments, and other living organisms. In recent years, use of inexpensive and abundantly available biosorbents generated from fibrous plant-based food-waste materials to remove heavy metals has garnered considerable research attention. The aim of this review is to investigate the applicability of using fibrous plant-based food waste, which comprises different components such as pectin, hemicellulose, cellulose, and lignin, to remove heavy metals from wastewater. This contribution confirms that plant-fiber-based food waste has the potential to bind heavy metals from wastewater and aqueous solutions. The binding capacities of these biosorbents vary depending on the source, chemical structure, type of metal, modification technology applied, and process conditions used to improve functionalities. This review concludes with a discussion of arguments and prospects, as well as future research directions, to support valorization of fibrous plant-based food waste as an efficient and promising strategy for water purification.

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Section: Fibrous Plant-based Food Waste For Sorbing Heavy Metalsmentioning

confidence: 99%

Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater—A Review

Karim,

Raji,

Karam

et al. 2023

Molecules

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“…The carbonization stage is a pyrolysis process that leads to thermal decomposition of the biomass-based material at temperature below 800 °C in the presence of minimal or no oxygen. This leads to the breaking down of lignocellulose structure of the biomass-based material and production of charcoal (Adegoke et al 2022b).…”

Section: Fabrication Processes Of Activated Carbon For Removal Of Org...mentioning

confidence: 99%

“…The activation stage is required subsequent to the carbonization stage in order to copiously develop the pore structure that enhances activated carbon's surface area, which expedite the capture and retention of substances. The activation stage is performed using either chemical or physical treatment method which leads to the generation of activated carbon (Adegoke et al 2022b). These various treatment methods during their preparation are responsible for the alteration of shape and size of leaves used as adsorbent (Adegoke and Bello 2015;Yahya et al 2015).…”

Section: Fabrication Processes Of Activated Carbon For Removal Of Org...mentioning

confidence: 99%

Modified biomass adsorbents for removal of organic pollutants: a review of batch and optimization studies

Adegoke

Akinnawo

Adebusuyi³

et al. 2023

Int. J. Environ. Sci. Technol.

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Modification of the adsorbent surfaces has been considered a fascinating strategy that enhances biomass-based adsorption properties for efficient removal of organic pollutants. This is based on the attempt to replace the cost-ineffectiveness of the commercial activated carbon. The present study discusses different modification strategies and a review on modified biomass materials for the sorption of organic contaminants. Unlike previous literatures in the field, wider range of these pollutants are discussed in this study under different categories including pesticides (such as insecticides, herbicides, fungicides), pharmaceutical (e.g. analgesic and antipyretic drugs, antibiotic drugs, non-steroidal anti-inflammatory drugs and antimalaria drugs), and dyes (e.g. azo, xanthene, miscellaneous diagnostic, tri-aryl methane, and phenol-derived polymeric dyes). It was observed that the acid-activated Posidonia oceanica and HNO3-modified rice husk displayed the highest and lowest adsorption capacities of 2681.9 and 0.35 mg/g for removing Rhodamine B dye and methyl parathion pesticide, respectively. The mechanistic aspects of organic pollutants adsorption, their corresponding regeneration studies, and environmental challenges with chemical modifications are also discussed. The use of computational (optimization) models for modified biomass-based adsorbents to remove organic pollutants is devoid in previous reviews but discussed in the present study. To foster more advancement in this field, the concluding part presents various challenges and knowledge gaps for furthering research towards more realistic industrial implementations.

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“…For the continued industrial growth and increasing long term sustainability of portable water resources in addition to the requirement of a continuous supply of clean water as well as the release of clean water into the environment. There is an uttermost need to develop an economically feasible technology for the treatment of wastewater in order to create a water recirculation system for industrial operations so as to improve the efficiency of water usage and to minimize the discharge of pollutants into public water resources [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Chemical coagulation and biological techniques for wastewater treatment

Akinnawo

Ayadi

Oluwalope

2023

Ovidius University Annals of Chemistry

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This paper reports the effectiveness of chemical coagulation and biological techniques for the treatment of wastewater from industrial and agricultural operations. Agricultural husbandry has been reported to produce wastewater that has high content of chemical oxygen demand (COD), biological oxygen demand (BOD), turbidity as well as organic and inorganic pollutants. A comparison on the use of organic and inorganic based coagulants as well as the optimum conditions required for high percentage removal efficiency of pollutants from wastewater has been reviewed. At optimum experimental condition, ferric chloride coagulants were reported to yield 98, 95, 93 and 50 % removal of color, turbidity, iron and manganese. Moreover, chemical coagulation, electrocoagulation and biological methods have been reported to display a close range in their capacities for removing pollutants from wastewater. However, biological method was observed to be highly effective in the removal of pollutants from wastewater but requires more time and produces lesser volume of sludge, when compared to chemical method in the treatment of wastewater.

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Progress and challenges in batch and optimization studies on the adsorptive removal of heavy metals using modified biomass-based adsorbents

Cited by 11 publications

References 106 publications

Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater—A Review

Valorization of Fibrous Plant-Based Food Waste as Biosorbents for Remediation of Heavy Metals from Wastewater—A Review

Modified biomass adsorbents for removal of organic pollutants: a review of batch and optimization studies

Chemical coagulation and biological techniques for wastewater treatment

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