Potential of sugarcane bagasse in remediation of heavy metals: A review

Raj, Vinay; Chauhan, M. S.; Pal, Sunder Lal

doi:10.1016/j.chemosphere.2022.135825

Cited by 19 publications

(6 citation statements)

References 67 publications

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“…This remarkable performance can be attributed to the utilization of SB, a globally abundant bio-waste known for its high percentage of cellulose and lignin, surpassing that of other conventional agricultural wastes. Furthermore, SB boasts excellent chemical properties, including moisture content (4.4-8.7% by weight), ash content (0.90-9.6% by weight), volatile material (69.8-81.0% by weight), and carbon content (39.8-47.3% by weight) (Raj et al 2022). These properties play a crucial role in facilitating an effective adsorption process.…”

Section: Mercury Adsorption Studiesmentioning

confidence: 99%

Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

Salas,

Antunes,

Rangel

et al. 2024

Preprint

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Metal ion adsorption using agro-industrial residues has shown promising results in remediating contaminated waters. However, adsorbent effectiveness relies on their properties, often necessitating processing for modification. Considering this, plasma treatment is effective in modifying material surfaces physically and chemically. This study investigated the modification of sugarcane bagasse (SB) using plasma-treated and evaluated its efficacy as a novel adsorbent for mercury removal from aqueous solutions. SB underwent low-temperature plasma treatment with sulfur hexafluoride (SF6) as the working gas, varying treatment times (2, 30, and 60 minutes) and fixed powers (80, 190, and 300 W) at 16 Pa pressure. Characterization via scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS/SEM), Fourier transform infrared spectroscopy (FTIR) and zero point of charge (pHpzc) revealed significant structural changes like increased in porosity and alteration in proportion atomic. Additionally, the successful incorporation of fluorine was confirmed in all treatment conditions, while sulfur was detected in only some samples. Amongst the tested conditions, the SB treated with 300 W for 60 minutes demonstrated the highest mercury removal efficiency, achieving an impressive 83.67% removal rate compared to untreated SB, which yielded only 57.95%. The adsorption mechanism exhibited both physical and chemical behavior, with chemisorption being the dominant process. The Freundlich model provided the best fit to the experimental data, with an R2 value of 0.97. In conclusion, plasma treatment can be a promising alternative for improving the physical and chemical characteristics of SB adsorbents, thereby improving their efficiency in removing mercury from aqueous solutions.

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Section: Mercury Adsorption Studiesmentioning

confidence: 99%

Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

Salas,

Antunes,

Rangel

et al. 2024

Preprint

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“…However, most of the energy crops used in heavy metal bioremediation are maize, sugarcane, sugar beet, and poplar. There is limited research on other unusual energy crops, and their mechanism of heavy metal pollution remediation is still unclear [145]. Therefore, potential energy crops should be researched and developed for extensive heavy metal bioremediation.…”

Section: Less Research On Unpopular Energy Cropsmentioning

confidence: 99%

Molecular Basis of Energy Crops Functioning in Bioremediation of Heavy Metal Pollution

Huang,

Lu,

Zhao

et al. 2024

Agriculture

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Heavy metal pollution is a gradually growing environmental issue that hinders the growth and development of plants, and also destabilizes soil. Consequently, eco-friendly phytoremediation methods have gained traction, with energy crops emerging as a particularly effective solution. Energy crops not only provide high-quality plant materials for detoxification and remediation of heavy metal pollution, but also possess energy properties conducive to biofuel production. Therefore, this paper delves into the tolerance mechanism of energy crops towards heavy metal toxicity, elucidating processes such as root complex-mediated inhibition of metal migration and response to reactive oxygen species (ROS) through heavy metal-related proteins, enzyme systems, reactive nitrogen species (RNS), and hormones. Moreover, it summarizes the heavy metals remediation mechanisms of energy crops, including uptake, translocation, chelation, immobilization, and sequestration. This paper explores applications of energy crops in heavy metal pollution remediation, emphasizing the methods for efficient biochar remediation and biofuel generation. Furthermore, potential challenges in using energy crops for heavy metal pollution remediation are outlined. By systematically examining the function mechanisms and prospective applications of energy crops in heavy metal pollution bioremediation, this paper serves as a valuable reference for both research and practical implementation in this field.

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“…Chemical fertilizers and herbicides have increased groundwater nitrates, phosphates, and other organic components [18]. Discharge of partially or untreated effluents has elevated heavy metals and other pollutants in groundwater [19].…”

Section: Status Of Groundwater Development and Its Pollutionmentioning

confidence: 99%

Assessment of Groundwater Trends in Bhopal, Madhya Pradesh: A Statistical Approach

2023

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Groundwater is a critical resource for the development of any region. In Bhopal, groundwater is also used for various purposes, including domestic use and irrigation. Overexploitation due to increasing demand coupled with pollution raises concern about the sustainability of groundwater supplies in the future. This study aimed to analyze trends in groundwater parameters in Bhopal over 22 years using the Mann-Kendall (MK) and Modified Mann-Kendall (MMK) trend tests in MATLAB. The parameters SO42−, Ca2+, HCO3−, NO3−, and F− showed a decreasing trend, while the trends for pH were mixed. In contrast, the Na+ and Cl− levels significantly increased in both trend tests, suggesting the effects of various existing aquifer conditions and human activities whose long-term exposure may lead to harmful effects. The results showed that nitrate and electrical conductivity levels exceeded the permissible limits. The MMK method provided more accurate results than the traditional Mann-Kendall method. The findings of this study are valuable for policymakers and water resource managers.

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Potential of sugarcane bagasse in remediation of heavy metals: A review

Cited by 19 publications

References 67 publications

Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

Plasma-engineered sugarcane bagasse: A novel strategy for efficient mercury removal from aqueous solutions

Molecular Basis of Energy Crops Functioning in Bioremediation of Heavy Metal Pollution

Assessment of Groundwater Trends in Bhopal, Madhya Pradesh: A Statistical Approach

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