Multiple heavy metals extraction and recovery from hazardous electroplating sludge waste via ultrasonically enhanced two-stage acid leaching

Li, Chuncheng; Xie, Fang; Ma, Yang; Cai, Tingting; Li, Haiying; Huang, Zhiyuan; Yuan, Gaoqing

doi:10.1016/j.jhazmat.2010.02.013

Cited by 162 publications

(58 citation statements)

References 19 publications

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“…For example, Deng et al [11] and Li et al [12] investigated the removal or recovery of heavy metals from sludge using ultrasound-assisted acid. The results showed that ultrasonic treatment is a necessary and effective method for assisting the improvement of heavy metal removal.…”

Section: Introductionmentioning

confidence: 99%

Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application

Gao

Kinoshita

Sato

et al. 2012

Bioinorganic Chemistry and Applications

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In order to investigate the behavior, distribution, and characteristics of heavy metals including rare earth elements (REEs), thorium (Th), and uranium (U) in sludge, the total and fractional concentrations of these elements in sludge collected from an industry water treatment plant were determined and compared with those in natural soil. In addition, the removal/recovery process of heavy metals (Pb, Cr, and Ni) from the polluted sludge was studied with biosurfactant (saponin and sophorolipid) elution by batch and column experiments to evaluate the efficiency of biosurfactant for the removal of heavy metals. Consequently, the following matters have been largely clarified. (1) Heavy metallic elements in sludge have generally larger concentrations and exist as more unstable fraction than those in natural soil. (2) Nonionic saponin including carboxyl group is more efficient than sophorolipid for the removal of heavy metals in polluted sludge. Saponin has selectivity for the mobilization of heavy metals and mainly reacts with heavy metals in F3 (the fraction bound to carbonates) and F5 (the fraction bound to Fe-Mn oxides). (3) The recovery efficiency of heavy metals (Pb, Ni, and Cr) reached about 90–100% using a precipitation method with alkaline solution.

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Section: Introductionmentioning

confidence: 99%

Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application

Gao

Kinoshita

Sato

et al. 2012

Bioinorganic Chemistry and Applications

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“…The sludge volume can be reduced by high temperature smelting treatment of copper sludge, electroplating and pickling sludge disposal with the extraction of metal in the sludge to achieve resource utilization. [4] Natural cooling and water quenching are two cooling methods for high temperature melting slag. The initial crystallization of the slag melts can be grown in the form of dissolution-precipitation with the slow natural cooling rate to form a good euhedral or subhedral crystal.…”

Section: Introductionmentioning

confidence: 99%

Study on Removal and Solidified Characteristics of Heavy Metals in the Slag from High Temperature Smelting of Copper Sludge, Electroplating and Pickling Sludge

Zhou

Hui³

et al. 2017

Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

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“…Given these challenges, a series of hydrometallurgical processes were studied, such as high-pressure acid leaching, two-stage acid leaching, microwave caustic leaching, di-2-ethylhexyl phosphoric acid (D2EHPA) leaching, and the use of various acidic or highly alkaline solutions. [10][11][12][13][14][15][16][17][18] In addition, several other hydrometallurgical processes were developed, including the use of ammoniac solutions and chloride leaching. 1,[19][20][21][22][23] A high zinc-leaching rate was achieved during these processes.…”

Section: Introductionmentioning

confidence: 99%

High-Zinc Recovery from Residues by Sulfate Roasting and Water Leaching

Peng

Chai

et al. 2015

JOM

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An integrated process for the recovery of zinc that is generated from zinc hydrometallurgy in residues was developed. A mixture of residue and ferric sulfate was first roasted to transform the various forms of zinc in the residue, such as ferrite, oxide, sulfide, and silicate, into zinc sulfate. Next, water leaching was conducted to extract the zinc while the iron remained in the residue as ferric oxide. The effects of the roasting and leaching parameters on zinc recovery were investigated. A maximum zinc recovery rate of 90.9% was achieved for a mixture with a ferric sulfate/residue weight ratio of 0.05 when roasting at 640°C for 30 min before leaching with water at room temperature for 20 min using a liquid/solid ratio of 10. Only 0.13% of the iron was dissolved in the water. Thus, the leaching liquor could be directly returned for zinc smelting.

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Multiple heavy metals extraction and recovery from hazardous electroplating sludge waste via ultrasonically enhanced two-stage acid leaching

Cited by 162 publications

References 19 publications

Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application

Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application

Study on Removal and Solidified Characteristics of Heavy Metals in the Slag from High Temperature Smelting of Copper Sludge, Electroplating and Pickling Sludge

High-Zinc Recovery from Residues by Sulfate Roasting and Water Leaching

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