Journal article
Fluoride retention in highly leached disturbed soils
Environmental Pollution Series B, Chemical and Physical, Vol.7(2), pp.83-95
1984
Abstract
The fluoride retention capacity of highly leached disturbed soil, possessing little soil structure, was examined by applying fluoride to soil cores in cylinders and subjecting them to leaching for 12 months. Even at very high fluoride application rates only 2·6 to 4·6% of the fluoride applied was leached as water-soluble fluoride. The pH of the eluate increased with increasing mass of fluoride applied to the columns, probably as a result of fluoride adsorption by exchange with OH− from soil metal hydroxides.
During the course of the experiment the water-soluble fluoride content of the soils decreased due to an enhancement of the firmness of the link between the surfaces of soil particles and fluoride, which occurs with time. Both water-soluble and total fluoride concentrations were found to be greatest at a depth of 0·7 to 1·4 m. It was concluded that soil iron and aluminium compounds may be the major fluoride retention factors in this soil, although other soil physical and chemical factors may also be involved. These reconstituted soils possess a very high capacity to retain fluoride despite their high permeability and relative absence of structure.
Details
- Title
- Fluoride retention in highly leached disturbed soils
- Authors/Creators
- F. Murray (Author/Creator)
- Publication Details
- Environmental Pollution Series B, Chemical and Physical, Vol.7(2), pp.83-95
- Publisher
- Elsevier Ltd.
- Identifiers
- 991005545138507891
- Copyright
- © 1984 Elsevier Ltd.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.49 Dentistry & Oral Medicine
- 1.49.2042 Fluoride Impact
- Web Of Science research areas
- Environmental Sciences
- ESI research areas
- Environment/Ecology