Carbothermal reduction synthesis of eggshell-biochar modified with nanoscale zerovalent iron/activated carbon for remediation of soil polluted with lead and cadmium

Aborisade, Moses Akintayo; Feng, Aixi; Zheng, Xuehao; Oba, Belay Tafa; Kumar, Akash; Battamo, Ashenafi Yohannes; Kavwenje, Sheila; Liu, Jiashu; Chen, Daying; Okimiji, Oluwaseun Princess; Ojekunle, Oluwasheyi Zacchaeus; Yang, Yongkui; Sun, Peizhe; Zhao, Lin

doi:10.1016/j.enmm.2022.100726

Cited by 10 publications

(6 citation statements)

References 82 publications

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“…The fifth thematic axis shows some amendments used to recover contaminated soils (Figure 1A). Authors such as Aborisade et al (2022) synthesized eggshell-biochar modified with nanoscale zerovalent iron/activated carbon (ESB-nZVI/ AC) via carbothermal reduction to immobilize contaminants such as lead and cadmium in the soil. This process caused an increase in surface area, pore volume, and oxygen-bearing functional groups in the ESB modified with nZVI/AC, leading to higher immobilization efficiency of the synthesized adsorbents on toxic metals in soil.…”

Section: Research Trends By Thematic Axismentioning

confidence: 99%

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Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Sandoval,

Corredor,

Rincón

et al. 2024

Rev. bras. eng. agríc. ambient.

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Municipal biowaste has a high potential for agricultural use. However, it requires an additional amendment to increase the nutritional content used during the composting process. The purpose of this study was to investigate the selection of compost-enhancing amendments from municipal biowaste using bibliometric and multicriteria analysis. The municipality of Yopal (Casanare, Colombia) was chosen as a case study. Using a search equation in the Scopus and Web of Science databases over five years (2018-2022), 53 publications were discovered, from which 25 were chosen for a full review to identify alternatives for amendment. Ashes, rice husks, sawdust, sugarcane bagasse, tree pruning waste, and alfalfa hay were assessed as amendment substitutes. Criteria such as financial cost, accessibility to acquire the amendment, nitrogen, phosphorus, and carbon contribution were used in the analysis of hierarchical processes. Tree pruning waste was the best option based on the criteria chosen because it is easily accessible and contributes with carbon and nitrogen (C/N: 13) to composting. Factors such as cost and affordability influence the physical and chemical characteristics that an amendment brings to the composting of municipal biowaste.

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Section: Research Trends By Thematic Axismentioning

confidence: 99%

“…Since 2018, research related to the use of biochar in creating sustainable agricultural systems has been developing. Biochar reduces contamination of surface and groundwater bodies, as well as the absorption and leaching of chemicals from agrochemicals (Medyńska-Juraszek et al, 2020;Aborisade et al, 2022).…”

Section: Research Trends By Thematic Axismentioning

confidence: 99%

Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Sandoval,

Corredor,

Rincón

et al. 2024

Rev. bras. eng. agríc. ambient.

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“…We are aware that iron-based materials have little influence on the environment, and their huge abundances account determines their relatively lower market prices. One of the most popular materials is nano zerovalent iron (nZVI), which has been widely used for the treatment of heavy metals contaminated in water, [21][22][23] soil, [24][25][26] groundwater, [27][28] and wastewater. [29] Although nZVI has a lot of potential for treating pollutants, its surface was easily oxidized to generate an iron oxide layer because of its strong reactive activity.…”

Section: Introductionmentioning

confidence: 99%

Preparation of nZVI/MCM‐41/rGO for Adsorption of Nickel Ions from Water

Piao,

Peng,

Liu

et al. 2024

ChemistrySelect

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Emissions of nickel (Ni) are harmful to the environment and people‘s health. Although nano zero‐valent iron (nZVI) has a lot of potential for treating water pollution, its instability and tendency for aggregation have limited its application. In order to improve its properties, composite adsorbent MCM‐41/rGO supported nZVI (nZVI/MCM‐41/rGO) is designed for improving the properties of nZVI, and it is characterized by SEM, XRD, FTIR and BET. The results show that it has an apparent Fe(0) crystallinity and modest rGO crystallinity, as well as a rough and porous structure. There are many oxygen‐containing groups found on the surface of nZVI/MCM‐41/rGO, such as −OH, −COOH, and Si−O. The pore diameter is concentrated at 23.82 nm, and the specific surface area is 15.94 cm2/g. The consequences of several parameters such as contact time, initial metal ion concentration, adsorbent dosage, and pH for adsorption efficiency were investigated. The best performance is occurred at pH 6, C0=80 mg/L with a 2 g/L adsorbent dosage, and after 180 min, a maximum adsorption capacity of 41.82 mg/g is reached at 333 K. The Dubinin‐Radushkevich isotherm and second order kinetic models fit the Ni(II) adsorption process well. It is determined through analysis of the thermodynamic parameters that the adsorption progress is endothermic (ΔH0>0) and spontaneous (ΔG0<0). nZVI/MCM‐41/rGO has proven to be an effective and alternative material for the removal of Ni(II) ions from aqueous media due to its excellent removal ability, availability, and low cost.

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“…This type of contamination can damage ecosystems, restrict biological growth, and cause human health hazards [1,2]. The Agency for Toxic Substances and Disease Registry classifies lead (Pb) and cadmium (Cd) as the second and seventh most hazardous substances, respectively [3,4]. Pb and Cd can inhibit enzyme activity and reduce microbial biomass, ultimately damaging ecological structure and function [5].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Mixed-Based Biochar Preparation Process and Adsorption Performance of Lead and Cadmium

Yuan

Wang

et al. 2023

Sustainability

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Irreversible pollution by heavy metals such as lead (Pb) and cadmium (Cd) adversely affects the ecological environment and human health. Due to its high adsorption, microporosity, and specific surface area, biochar possesses excellent potential for use in heavy metal pollution remediation. The preparation of mixed-based biochar from sludge and cotton stalk can solve the problems inherent to pure sludge biochar, such as undeveloped pore structure and a small specific surface area, while resourcefully utilizing both waste biomass types. This study investigated the adsorption capacity for Pb2+ and Cd2+ of mixed-based biochar prepared at different pyrolysis temperatures, different pyrolysis residence times, and different cotton stalks percentages. Response surface experiments revealed the optimum process conditions for preparing mixed-based biochar, which included a pyrolysis temperature of 638 °C, a pyrolysis residence time of 86 min, and an addition ratio of 50% for cotton stalks. The isothermal adsorption experiments revealed that the maximum adsorption capacities of mixed-based biochar for Pb2+ and Cd2+ were 111.11 and 86.21 mg/g, respectively. Our findings suggest the co-pyrolysis of sludge and cotton stalk as a green and sustainable method for safely disposing of Pb and Cd.

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Carbothermal reduction synthesis of eggshell-biochar modified with nanoscale zerovalent iron/activated carbon for remediation of soil polluted with lead and cadmium

Cited by 10 publications

References 82 publications

Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Bibliometric and multicriteria analysis for selection of amendments potentiators of compost from municipal biowaste

Preparation of nZVI/MCM‐41/rGO for Adsorption of Nickel Ions from Water

Optimization of Mixed-Based Biochar Preparation Process and Adsorption Performance of Lead and Cadmium

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