Remediation of Cd and Cu contaminated water and soil using novel nanomaterials derived from sugar beet processing- and clay brick factory-solid wastes

Lashen, Zahraa M.; Shams, Mahmoud; El‐Sheshtawy, Hamdy S.; Slaný, Michal; Antoniadis, Vasileios; Yang, Xing; Sharma, Gaurav; Rinklebe, Jörg; Shaheen, Sabry M.; Elmahdy, Shimaa M.

doi:10.1016/j.jhazmat.2021.128205

Cited by 38 publications

(11 citation statements)

References 44 publications

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“…Clay minerals have been widely used for pollutant elimination due to their composition, mineralogical structure, surface charge, and cation exchange capacity. The clay-loaded biochar obtained from a biomass mixture with montmorillonite and kaolinite showed lower surface areas than untreated biochar, this was because of pores blockage in biochar through clay minerals 106 . Kaolinite, gibbsite, and montmorillonite are the most frequently used clay minerals, as a cost-effective adsorbent 107 .…”

Section: Various Modification Techniques For the Preparation Of Funct...mentioning

confidence: 96%

Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants

Murtaza,

Ahmed,

Valipour

et al. 2024

Sci Rep

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The pollution of soil and aquatic systems by inorganic and organic chemicals has become a global concern. Economical, eco-friendly, and sustainable solutions are direly required to alleviate the deleterious effects of these chemicals to ensure human well-being and environmental sustainability. In recent decades, biochar has emerged as an efficient material encompassing huge potential to decontaminate a wide range of pollutants from soil and aquatic systems. However, the application of raw biochars for pollutant remediation is confronting a major challenge of not getting the desired decontamination results due to its specific properties. Thus, multiple functionalizing/modification techniques have been introduced to alter the physicochemical and molecular attributes of biochars to increase their efficacy in environmental remediation. This review provides a comprehensive overview of the latest advancements in developing multiple functionalized/modified biochars via biological and other physiochemical techniques. Related mechanisms and further applications of multiple modified biochar in soil and water systems remediation have been discussed and summarized. Furthermore, existing research gaps and challenges are discussed, as well as further study needs are suggested. This work epitomizes the scientific prospects for a complete understanding of employing modified biochar as an efficient candidate for the decontamination of polluted soil and water systems for regenerative development.

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Section: Various Modification Techniques For the Preparation Of Funct...mentioning

confidence: 96%

Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants

Murtaza,

Ahmed,

Valipour

et al. 2024

Sci Rep

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“…Contamination sources have been attributed to unregulated overlapping of activities that influence soil quality, e.g., industrialization, urbanization, agriculture, and solid waste. Solid waste heterogeneity contributes with the enrichment of potentially toxic elements (PTEs) in soil according to Lashen et al (2022), being currently considered as a major threat to soil and groundwater quality in urban areas. Previous studies (Zaynab et al, 2022) described that the rapid growth of cities and their inhabitants has boosted global waste production, with an estimated global annual production of municipal solid waste (MSW), in 2025, of 2.2 billion metric tons.…”

Section: Smart M O; Okumodi B O; Ibiyeye D E; Roberts a E; Olunloyo O...mentioning

confidence: 99%

Concentration and Ecological Risk Assessments of Potentially Toxic Elements in Soils around Lapite Dump Site, Akinyele Local Government Area, Ibadan, Nigeria

Smart,

Okumodi,

Ibiyeye

et al. 2024

jasem

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The contamination and ecological risk posed by Potentially Toxic Elements (PTEs) on soils around Lapite dumpsite and its environs were assessed using different analytical techniques after complete digestion of the soil using mixed acids. Results showed that the mean concentration of chromium (Cr), cadmium (Cd), and lead (Pb) (153.2mg/kg, 13.83mg/kg, 137.2mg/kg and respectively) have higher concentrations than their crustal abundance (CA). The enrichment factor analysis revealed that most of the soils collected have been enriched with Pb showing the most enrichment at the upper and middle slopes while Cd is the most enriched at the downslope. The contamination factor showed that Cr, Pb and Cd are also the elements showing significant contamination with Cr and Pb moderately contaminating soil (1.54 and 1.62 respectively) and Cd showing very high contamination in the soil (17.3). The ecological risk indices revealed that only Cd has high risk of polluting the soils (519) of the study area while the whole area is considered to be at a high risk of various degrees of pollution (534). Considering the health implications of these concerned elements (Cr, Pb and especially Cd) to the body, the habitants of the study area are advised to move away from these dumpsite and also relocate their farmlands to more environmental friendly sites.

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“…Due to industrial activities, wastewater containing heavy metals is frequently discharged into water bodies, resulting in many environmental problems [ 1 ]. Contamination of water and soils with heavy metals has become a global environmental problem due to their toxicity, carcinogenicity and adverse effects on ecosystem health and food security [ 2 ]. Once heavy metals such as cadmium (Cd), lead (Pb) and copper (Cu) enter the water, they will enter the human body with the food chain, thus endangering human health [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Removal and Mechanism of Cadmium, Lead and Copper in Water by Functional Modification of Silkworm Excrement Biochar

Bian

Liu

Zheng³

2022

Polymers

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A new type of biochar, called GBC, was prepared from silkworm excrement, and then modified by chitosan combined with pyromellitic dianhydride. The removal of mono-metal and polymetals (Pb, Cd and Cu) from an aqueous solution by GBC was investigated in this research. Compared to unmodified biochar, the removal rate of Pb and Cd by GBC was about 12% higher, while that of Cu was about 94.6% higher. It also shows the types of functional groups in biochar have a great impact on their adsorption. The removal of Pb is mainly involved in the N-C=O functional group, the removal of Cd is mainly involved in N-containing functional group and C=C bond, and that of Cu is mainly involved in N-containing functional group, carboxyl group, hydroxyl group, and a carbonyl group. Five adsorption–desorption cycles of GBC were carried out, and it was found that the adsorption capacities of GBC for Pb, Cd and Cu decreased by 7.28%, 10.78% and 6.07%, respectively, indicating that GBC had a good renewable performance. The adsorption capacity of GBC for Cu in different water samples is between 89.62 and 93.47 mg·g−1, indicating that GBC has great application potential for the removal of Cu in wastewater.

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Remediation of Cd and Cu contaminated water and soil using novel nanomaterials derived from sugar beet processing- and clay brick factory-solid wastes

Cited by 38 publications

References 44 publications

Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants

Recent trends and economic significance of modified/functionalized biochars for remediation of environmental pollutants

Concentration and Ecological Risk Assessments of Potentially Toxic Elements in Soils around Lapite Dump Site, Akinyele Local Government Area, Ibadan, Nigeria

Removal and Mechanism of Cadmium, Lead and Copper in Water by Functional Modification of Silkworm Excrement Biochar

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