A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reclamation of Phosphatic Clay Waste Ponds by Capping. Volume 3: Evaluation of the Use of Geotextiles for Capping Phosphatic Waste Clay Ponds
The research evaluated the use of geotextiles for capping phosphatic claywaste clay ponds and, thus, to enhance the consolidation process of these materials. A system was designed and constructed for performing the permeability tests such that four geotextiles could be tested simultaneously. Waste clays at initial solids contents ranging from 17 to 19% were placed in the system and allowed to consolidate against the bottom of the geotextiles under the application of an approximately 21 inch water head difference and air pressure ranging from 3 to 4 psi, resulting in total head differences ranging from 8.6 to 10.9 feet of water. Flow rates versus time were determined for each of the geotextiles that were tested. At the conclusion of each group of tests, samples of the waste clays were obtained adjacent to each geotextile to determine the final solids content. Additionally, scanning electron microphotographs were obtained of several of the geotextiles before and after testing in order to examine clogging within the geotextiles. All of the above results were then utilized to compare the long term filtration/permeability characteristics for the tested geotextiles in order to develop a recommendation for selecting a geotextile for use in field testing applications.
Reclamation of Phosphatic Clay Waste Ponds by Capping. Volume 3: Evaluation of the Use of Geotextiles for Capping Phosphatic Waste Clay Ponds
The research evaluated the use of geotextiles for capping phosphatic claywaste clay ponds and, thus, to enhance the consolidation process of these materials. A system was designed and constructed for performing the permeability tests such that four geotextiles could be tested simultaneously. Waste clays at initial solids contents ranging from 17 to 19% were placed in the system and allowed to consolidate against the bottom of the geotextiles under the application of an approximately 21 inch water head difference and air pressure ranging from 3 to 4 psi, resulting in total head differences ranging from 8.6 to 10.9 feet of water. Flow rates versus time were determined for each of the geotextiles that were tested. At the conclusion of each group of tests, samples of the waste clays were obtained adjacent to each geotextile to determine the final solids content. Additionally, scanning electron microphotographs were obtained of several of the geotextiles before and after testing in order to examine clogging within the geotextiles. All of the above results were then utilized to compare the long term filtration/permeability characteristics for the tested geotextiles in order to develop a recommendation for selecting a geotextile for use in field testing applications.
Reclamation of Phosphatic Clay Waste Ponds by Capping. Volume 3: Evaluation of the Use of Geotextiles for Capping Phosphatic Waste Clay Ponds
F. C. Townsend (author) / D. G. Bloomquist (author) / S. A. McClimans (author) / M. C. McVay (author)
1988
158 pages
Report
No indication
English
Solid Wastes Pollution & Control , Mineral Industries , Soil Sciences , Fibers & Textiles , Waste disposal , Mining , Land reclamation , Textiles , Consolidation , Flocculating , Beneficiation , Industrial wastes , Florida , Time studies , Performance evaluation , Filtration , Permeability , Flow rate , Laboratory equipment , Phosphate rock slime , Phosphate industry , Settling ponds , Coverings , Geosynthetic materials , Waste utilization , Scanning electron microscopy
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