Journal article
Leachate flow rate behavior through geotextile and soil filters and possible remediation methods
Geotextiles and geomembranes, v 11(4-6), pp 401-430
01 Jan 1992
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper presents flow rate data in the form of system permeability values using various filtration schemes involving both geotextiles and natural soil filters. The tests were conducted over a 20-month period using six different types of leachate. In total, 96 different combinations were evaluated. In all cases, permeabilities decreased over time due to a combination of sediment clogging and/or biological clogging. When a steady state permeability value appeared to be reached, after approximately 6 months, the first of four remediation schemes were attempted. It was seen that water backflush is the most effective in reinstituting high flow rates, followed by backflushing with leachate and nitrogen gas. The least effective remediation scheme was vacuum extraction. Biocide treated geosynthetics were also evaluated, but results were inconclusive. This was due to the long times required and/or the remnants of the micro-organisms which could not pass through the various filtering systems. The long-term minimum permeability values were not identified, nor were the design required permeabilities for the various landfills, in question. These important items are currently being investigated.
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Details
- Title
- Leachate flow rate behavior through geotextile and soil filters and possible remediation methods
- Creators
- G Koerner - Drexel UniversityR Koerner - Drexel University
- Publication Details
- Geotextiles and geomembranes, v 11(4-6), pp 401-430
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1992JM49700006
- Scopus ID
- 2-s2.0-0027007235
- Other Identifier
- 991019173698704721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Geological
- Geosciences, Multidisciplinary