Journal article
Effects of gypsum and sewage sludge amendment on physical properties of fine bauxite refining residue
Soil Science, Vol.152(5), pp.326-332
1991
Abstract
Fine bauxite refining residue (red mud) was amended with gypsum and sewage sludge to evaluate their effects on soil physical properties in a field experiment. Sewage sludge amendment significantly reduced soil bulk density (25%) and particle density (9%), and increased the total porosity of red mud (8%). Both sewage sludge and gypsum contributed to the increases in hydraulic conductivity after one growing season. Enhanced plant growth was due to improved soil structure and hydraulic conductivity. An application of 77 t/ha gypsum and 144 t/ha sewage sludge exerted the maximum effect on soil physical properties of red mud and should ensure the initial establishment of plants.
Details
- Title
- Effects of gypsum and sewage sludge amendment on physical properties of fine bauxite refining residue
- Authors/Creators
- J.W.C. Wong (Author/Creator)G.E. Ho (Author/Creator)
- Publication Details
- Soil Science, Vol.152(5), pp.326-332
- Publisher
- Lippincott Williams and Wilkins
- Identifiers
- 991005545399607891
- Murdoch Affiliation
- School of Environmental Science
- Language
- English
- Resource Type
- Journal article
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