Novel applications of membrane processes in soil cleanup operations

Novel applications of membrane processes in soil cleanup operations

A combination of membrane processes, microfiltration and nanofiltration, was employed to enhance the removal of heavy metals from contaminated soil using acid leaching. Microfiltration was used to separate soil particles from the metal-containing leachate. The leachate was then processed using nanof...

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Bibliographic Details
Published in:Desalination Vol. 147; no. 1; pp. 123 - 126
Main Authors: Volchek, Konstantin, Velicogna, Dario, Obenauf, Alison, Somers, Andrew, Wong, Bill, Tremblay, AndréY.
Format: Journal Article Conference Proceeding
Language:English
Published: Amsterdam Elsevier B.V 10-09-2002
Elsevier
Subjects:
Applied sciences
Decontamination. Miscellaneous
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Heavy metals
Immersed membranes
Leachate
Nanofiltration
Pollution
Pollution, environment geology
Soil and sediments pollution
Soil cleanup
Nanofiltration
Soil cleanup
Leachate
Heavy metals
Immersed membranes
Membrane separation
Microfiltration
Decontamination
Acid leaching
Performance
Soil pollution
Heavy metal
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Summary:A combination of membrane processes, microfiltration and nanofiltration, was employed to enhance the removal of heavy metals from contaminated soil using acid leaching. Microfiltration was used to separate soil particles from the metal-containing leachate. The leachate was then processed using nanofiltration to reduce the leachate's volume and recover spent acid from the slurry. Results of the bench-scale study demonstrated the advantages of incorporating membrane processes into soil treatment operations: faster and more complete removal of metals; reduced volume of waste products; and the possibility for acid reuse.
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ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(02)00586-6