Masters Theses

Alternative Title

pH effect on adsorption of saxitoxin on powdered activated carbon
pH effects on adsorption of saxitoxin on powdered activated carbon

Author

Jie Ding

Abstract

"The presence of algal toxins, or cyanotoxins, in surface water has been increasingly reported. These highly hazardous toxins are potential threat to both human health and animals by contaminating drinking water sources over the world. In this study, the removal efficiency of saxitoxin from water using powered activated carbon was tested at different pH values for deionized water and natural surface water. The results of this study showed that pH has a strong impact on removal efficiency of saxitoxin using powdered activated carbon. Specifically, the removal efficiency of saxitoxin is significantly increased at higher pH from 5.7 to pH 10.7. This is explained by chemical speciation of the saxitoxin with changing pH. Natural organic matter in natural water was shown to exhibit significant adsorption competition with saxitoxin at the neutral pH"--Abstract, page iv.

Advisor(s)

Adams, C. D. (Craig D.)

Committee Member(s)

Ludlow, Douglas K.
Wang, Jianmin

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Environmental Engineering

Sponsor(s)

Missouri. Department of Natural Resources

Publisher

University of Missouri--Rolla

Publication Date

Summer 2007

Pagination

ix, 73 pages

Rights

© 2007 Jie Ding, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Carbon, Activated
Hydrogen-ion concentration
Saxitoxin
Water -- Purification -- Organic compounds removal

Thesis Number

T 9885

Print OCLC #

785394684

Electronic OCLC #

756210394

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