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Arsenic adsorption in aqueous solution and immobilization in soils and using hand warmers
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| Abstract |
Abstract
Adsorption is a commonly used method for arsenic remediation. The adsorption and
immobilization effectiveness of arsenic by soil particles and used hand warmers was
studied. The adsorption effectiveness at equilibrium of soil particles in 10 ppm As(III)
solution was: clay (77.70%) > silt (69.24%) > sand (41.35%). In 1000 ppm As(III)
solution, 17.02 mg As(III) was adsorbed onto each gram of hand warmers at equilibrium,
which was significantly higher than other adsorbents. For As(III) adsorption from
aqueous solution, soil samples and hand warmers were well fitted to the pseudo secondorder
model and the Freundlich model. After 8 weeks of soil incubation, the sequential
extraction procedure data indicated the labile fractions of arsenic (F1 and F2) decreased
with the addition of hand warmers. Meanwhile, the percentage of the most stable fraction,
F5, increased. These results are valuable for the future application of used hand warmers
as an adsorbent/amendment for arsenic decontamination. |
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| Persons |
Persons
Author (aut): Tong, Zeyi
Thesis advisor (ths): Hartley, Ian
Thesis advisor (ths): Whitcombe, Todd
Thesis advisor (ths): Chen, Hualin
Degree committee member (dgc): Rutherford, Michael
Degree committee member (dgc): McGill, William B.
Degree committee member (dgc): Li, Yubao
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Degree Name
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| Department |
Department
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| DOI |
DOI
https://doi.org/10.24124/2017/1371
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Collection(s)
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| Origin Information |
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| Organizations |
Degree granting institution (dgg): University of Northern British Columbia. College of Science and Management
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| Keywords |
Keywords
arsenic
adsorption
soil
disposable hand warmers
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| Extent |
Extent
Number of pages in document: 64
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Physical Form
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Content type
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Resource Type
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Genre
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Language
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| Handle |
Handle
Handle placeholder
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| Use and Reproduction |
Use and Reproduction
Copyright retained by the author.
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| Rights Statement |
Rights Statement
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unbc_17359.pdf3.39 MB
25721-Extracted Text.txt96.13 KB
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English
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| Name |
Arsenic adsorption in aqueous solution and immobilization in soils and using hand warmers
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