Modification of biochar with Fe<sub>3</sub>O<sub>4</sub> and humic acid-salt for removal of mercury from aqueous solutions: a review

Giwa, Abdulmoseen Segun; Ndungutse, Jean Maurice; Li, Yanfang; Mabi, Ahwei; Liu, Xinxin; Vakili, Mohammadtaghi; Memon, Abdul Gaffar; Zhang, Chenfeng; Sheng, Mingqiang

doi:10.1080/26395940.2022.2115402

Cited by 13 publications

(7 citation statements)

References 97 publications

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“…Rice that produces from mercury-polluted land could be the main source of mercury toxicity for billions of people [4]. Estimated to the total Hg consumed by humans, rice gave the highest portion 94-96%, and only 1-2% estimated from fish [5]. Zhang et al [6] reported rice that produces from the mining area of Hg contains rate >100 μg/kg.…”

Section: Resultsmentioning

confidence: 99%

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Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Syahril,

Rosmayati,

Rahmawati

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Unauthorised Gold Mining in Mandailing Natal Regency could serious problems for the environment and human health. It is because waste from the amalgamation process contains mercury released into the waterways that are irrigation sources. The main damage impact from the mercury waste released into irrigation canals would be seen on the paddy field. For this reason, it is necerssary to tests and studies to see the contaminated level of mercury on paddy fields. This research was conducted from June to July 2023 in Sub-District Hutabargot, Mandailing Natal Regency by took soil sampling in the 0-10 cm, 11-20 cm, 21-20 cm, 31-40 cm, 41-50 cm, 51-60 cm, 61-70 cm, 71-80 cm, 81-90 cm, and 91-100 cm on soil depth in 7 sampling points. The resulting study obtained at least 170 amalgamation points that the waste released into the waters. The mercury content on the paddy soil in Sub-District Hutabargot which is irrigation irrigated by amalgamation process exceeding the threshold. There is an increase of mercury content in the 30 cm soil depth and then decreases with increasing soil depth. For a depth of more than 60 cm, the mercury content on the paddy soil is under the threshold.

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Section: Resultsmentioning

confidence: 99%

“…Rice produced from the mercury-polluted farming area could be the main source of mercury toxicity [4]. Estimated from the total mercury consumed by humans, rice gave the highest portion 94-96%, and only 1-2% was estimated from fish [5]. Zhang et al [6] also reported the mercury concentration in the rice grain could reach 569 μg/kg.…”

Section: Introductionmentioning

confidence: 99%

Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Syahril,

Rosmayati,

Rahmawati

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…This study investigated the performance of the cattle manure and cherry wood biochar towards toxic HMs adsorption such as Lead (Pb), Nickel (Ni) and Cadmium (Cd), the result shows the highest adsorption capacity achieved was around (40.8, 25.1 and 24.2) mg·g −1 respectively. Through biochar magnetization, by using Iron (II, III) oxide modified with humic acid salt can lead to the high adsorption of Mercury (Hg) in aqua environment [ 129 ]. However, this treatment process is associated with some challenges such as costly investment and system maintenance, moderation of temperature and handling syngas with extremely high temperature [ 123 ].…”

Section: Municipal Sewage Sludge Treatment and The Resource Recoverymentioning

confidence: 99%

Advances in sewage sludge application and treatment: Process integration of plasma pyrolysis and anaerobic digestion with the resource recovery

Giwa,

Maurice,

Luoyan

et al. 2023

Heliyon

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“…Mercury (Hg) is a global pollutant known for its persistence and capacity to travel across the globe [1,2]. The methylation and subsequent bioaccumulation of mercury in the food chain result in the formation of methylmercury (MeHg), an extremely toxic variant of mercury [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Hg⁰ chemisorption of magnetic manganese cobalt nano ferrite from simulated flue gas

Zhou,

Lv,

Zhang

et al. 2024

Phys. Scr.

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Mercury (Hg) emissions from the flue gas of coal-fired power plants constituted the primary source of atmospheric mercury pollution, manifesting in three distinct forms: granular mercury, oxidized mercury, and elemental mercury. This pollution posed significant threats to the ecological environment. There was an urgent demand for a more effective and economically viable mercury removal technology.The magnetic Mn0.5Co0.5Fe2O4 nanoparticles were prepared via a rapid combustion process. Their capacities for mercury adsorption and regeneration were scrutinized through a fixed-bed experimental system. The outcomes revealed that Mn0.5Co0.5Fe2O4 nanoparticles, prepared at a calcination temperature of 400 °C with 20 mL of anhydrous ethanol, exhibited the most proficient adsorption of Hg0. Under these specific conditions, the average particle size of the Mn0.5Co0.5Fe2O4 nanoparticles was approximately 26.8 nm. These nanoparticles demonstrated a superior adsorption capacity of 9.48 μg·g-1 for Hg0 at an adsorption temperature of 30 °C under a space velocity of 2.4×104 h-1. Elevating the permeation temperature to 70 °C resulted in an impressive adsorption capacity for Hg0, reaching 560.59 μg·g-1.The Hg-TPD (Hg-Temperature Programmed Desorption) and XPS (X-ray photoelectron spectroscopy) analyses revealed the involvement of chemisorbed oxygen (Oads), Mn3+, and Fe3+ in the adsorbent, facilitating the oxidation of Hg0 and generating HgO on the adsorbent surface. Following six cycles of adsorption and desorption, the adsorption capacity of Mn0.5Co0.5Fe2O4 nanoparticles for Hg0 retained 71% of the first adsorption capacity, which indicated that magnetic Mn0.5Co0.5Fe2O4 nanoparticles held great promise as an adsorbent for mercury removal.

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Modification of biochar with Fe₃O₄ and humic acid-salt for removal of mercury from aqueous solutions: a review

Cited by 13 publications

References 97 publications

Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Advances in sewage sludge application and treatment: Process integration of plasma pyrolysis and anaerobic digestion with the resource recovery

Hg⁰ chemisorption of magnetic manganese cobalt nano ferrite from simulated flue gas

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Modification of biochar with Fe3O4 and humic acid-salt for removal of mercury from aqueous solutions: a review

Cited by 13 publications

References 97 publications

Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Distribution of mercury contamination on paddy fields in various levels of soil depth in gold mine area at Sub-District Hutabargot, Mandailing Natal Regency, Indonesia

Advances in sewage sludge application and treatment: Process integration of plasma pyrolysis and anaerobic digestion with the resource recovery

Hg0 chemisorption of magnetic manganese cobalt nano ferrite from simulated flue gas

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Product

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Modification of biochar with Fe₃O₄ and humic acid-salt for removal of mercury from aqueous solutions: a review

Hg⁰ chemisorption of magnetic manganese cobalt nano ferrite from simulated flue gas