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Cola soft drinks for evaluating the bioaccessibility of uranium in contaminated mine soils

Citation

Lottermoser, BG and Schnug, E and Haneklaus, S, Cola soft drinks for evaluating the bioaccessibility of uranium in contaminated mine soils, The Science of The Total Environment: An International Journal for Scientific Research Into The Environment and Its Relationship With Man, 409, (18) pp. 3512-3519. ISSN 0048-9697 (2011) [Refereed Article]


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DOI: doi:10.1016/j.scitotenv.2011.05.043

Abstract

There is a rising need for scientifically sound and quantitative as well as simple, rapid, cheap and readily available soil testing procedures. The purpose of this study was to explore selected soft drinks (Coca-Cola Classic®, Diet Coke®, Coke Zero®) as indicators of bioaccessible uranium and other trace elements (As, Ce, Cu, La, Mn, Ni, Pb, Th, Y, Zn) in contaminated soils of the Mary Kathleen uranium mine site, Australia. Data of single extraction tests using Coca-Cola Classic®, Diet Coke® and Coke Zero® demonstrate that extractable arsenic, copper, lanthanum, manganese, nickel, yttrium and zinc concentrations correlate significantly with DTPA- and CaCl2-extractable metals. Moreover, the correlation between DTPA-extractable uranium and that extracted using Coca-Cola Classic® is close to unity (+0.98), with reduced correlations for Diet Coke® (+0.66) and Coke Zero® (+0.55). Also, Coca-Cola Classic® extracts uranium concentrations near identical to DTPA, whereas distinctly higher uranium fractions were extracted using Diet Coke® and Coke Zero®. Results of this study demonstrate that the use of Coca-Cola Classic® in single extraction tests provided an excellent indication of bioaccessible uranium in the analysed soils and of uranium uptake into leaves and stems of the Sodom apple (Calotropis procera). Moreover, the unconventional reagent is superior in terms of availability, costs, preparation and disposal compared to traditional chemicals. Contaminated site assessments and rehabilitation of uranium mine sites require a solid understanding of the chemical speciation of environmentally significant elements for estimating their translocation in soils and plant uptake. Therefore, Cola soft drinks have potential applications in single extraction tests of uranium contaminated soils and may be used for environmental impact assessments of uranium mine sites, nuclear fuel processing plants and waste storage and disposal facilities.

Item Details

Item Type:Refereed Article
Keywords:uranium bioaccessibility soils contamination
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Physical Geography and Environmental Geoscience not elsewhere classified
Objective Division:Mineral Resources (excl. Energy Resources)
Objective Group:Environmentally Sustainable Mineral Resource Activities
Objective Field:Management of Solid Waste from Mineral Resource Activities
Author:Lottermoser, BG (Professor Bernd Lottermoser)
ID Code:74058
Year Published:2011
Web of Science® Times Cited:2
Deposited By:Centre for Ore Deposit Research - CODES CoE
Deposited On:2011-11-10
Last Modified:2017-11-03
Downloads:0

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