Characterization of High‐arsenic Sludge in Copper Metallurgy Plant

Zhu, Xing; Qi, Xianjin; Wang, Hua; Shi, Yifeng; Liao, Tianpeng; Li, Yuancheng; Liu, Chunxia; Wang, Xiaowu

doi:10.1002/9781118888056.ch21

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…)과 같이 음이온으로 존재하는 비소(arsenic; As) 의 제어기작은 철(iron; Fe) 흡착이나 칼슘(calcium; Ca) 공침이 많이 알려져 있다 (Cundy et al, 2008;Kumpiene et al, 2008;Moon et al, 2004;Zhu et al, 2014). 이는 곧 비소오염 부지의 안정화를 위해 철이나 칼슘이 함유 된 안정화제를 우선적으로 고려해야 함을 의미한다.…”

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“…연구논문 황(sulfur; S)과 결합하여 안정한 형태의 화합물(HgS)을 구성하는 만큼 안정화제로 황화물을 우선적으로 고려할 필요가 있는 것으로 보고 있다 (Jung et al, 2009;Piao and Bishop, 2006;Xu et al, 2015). (Bothe and Brown, 1999;Moon et al, 2004;Saniewaska and Beldowska, 2017;Zhu et al, 2014). and Brown, 1999;Kumpiene et al, 2008;Lee and Jeon, 2010;Moon et al, 2004;Saniewaska and Beldowska, 2017).…”

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Transfer of Arsenic and Mercury from Stabilized Farmland Soil to Lettuce using Calcium Sulfate Fertilizer with Different Physical Properties as a Stabilizing Agent

Koh,

Kwon,

Lee

et al. 2023

Econ. Environ. Geol.

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In this study, we investigated the feasibility of calcium sulfate fertilizer as a stabilizing agent for As and Hg contaminated farmland soil and its stabilization characteristics in 3 different physical forms (particulate, powder, and solution) through a pot experiment including 34 days of lettuce growth. As and Hg contents of the lettuce grown in the stabilized soils were decreased by at least 70%. However the lettuce yield of the soil stabilized with the solution agent was decreased by 46% due to the overabundance of the nutrients from the solution agent. Thus, if a solution-type agent is planned for agricultural farmland soil stabilization, additional tests for optimal dosage are needed to preserve vegetation growth. In Hg fractionation, a lower concentration of elemental fractions and a higher concentration of residual/sulfide fractions were identified in the soils stabilized with the solution, powder, and pariculate agents in descending order while there were no significant changes in As fractionation. Overall results suggest that calcium sulfate fertilizer can be used as a stabilizing agent, and a solution-type agent could be used when the operation of heavy machinery for the soil stabilization process is impossible.

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Transfer of Arsenic and Mercury from Stabilized Farmland Soil to Lettuce using Calcium Sulfate Fertilizer with Different Physical Properties as a Stabilizing Agent

Koh,

Kwon,

Lee

et al. 2023

Econ. Environ. Geol.

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The Contamination of Water and Soil from the Dissolution of As-Bearing Mineral Waste in Matehuala, Mexico

Martínez-Villegas,

Suárez,

Loredo-Portales

et al. 2024

Arsenic Remediation of Food and Water

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Selective and Multi-Step Leaching of Valuable Metals from Scrap Copper-Smelting Sludge

Wang

et al. 2015

AMM

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Valuable metals in smelting sludge from smelting industry have a recovery value. In this work, for realizing waste recycling effectively, selective and multi-step leaching of valuable metals was investigated with scrap copper-smelting sludge as research object. The effect of the concentration of sulphuric acid on leaching rates of valuable metals was investigated first. The results showed that the leaching rates of Cu, Zn and Ni were 6.1%, 59.4% and 63.3% at the acid concentration of 65g/L. Then, the results of the selective and multi-step leaching indicated that the leaching rates of Cu, Zn and Ni were over 90% after two-step leaching. In third step, the content of Cu in leached residue was 6.68%, which was higher than origin sludge. Repeat three-step leaching process above, Zn and Ni were leached selectively and Cu was accumulated in leached residue continually.

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Characterization of High‐arsenic Sludge in Copper Metallurgy Plant

Cited by 4 publications

References 6 publications

Transfer of Arsenic and Mercury from Stabilized Farmland Soil to Lettuce using Calcium Sulfate Fertilizer with Different Physical Properties as a Stabilizing Agent

Transfer of Arsenic and Mercury from Stabilized Farmland Soil to Lettuce using Calcium Sulfate Fertilizer with Different Physical Properties as a Stabilizing Agent

The Contamination of Water and Soil from the Dissolution of As-Bearing Mineral Waste in Matehuala, Mexico

Selective and Multi-Step Leaching of Valuable Metals from Scrap Copper-Smelting Sludge

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