Summary: Geosynthetics International, 2003, 10, No. 4
Long-term filtration performance of nonwoven
geotextile-sludge systems
A. H. Aydilek1
and T. B. Edil2
1
Assistant Professor, Department of Civil and Environmental Engineering, University of Maryland,
1163 Glenn Martin Hall, College Park, Maryland 20742, USA, Telephone: +1 301 314 2692,
Telefax: +1 301 405 2585, E-mail: aydilek@eng.umd.edu
2
Professor & Chair Geological Engineering Program, and Professor, Department of Civil and
Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA,
Telephone: +1 608 262 3225, Telefax: +1 608 263 2453, E-mail: edil@engr.wisc.edu
Received 13 January 2003, revised 15 May 2003, accepted 21 June 2003
ABSTRACT: A study of the filtration behaviour of contaminated wastewater treatment sludges was
conducted. The laboratory portion of the study included a series of filtration tests with different
nonwoven geotextiles. Filtration performance of the sludge­nonwoven-geotextile systems was also
observed in field test cells by exhuming geotextile samples from the cells after exposure followed by
analysis. The results indicated that the sludges could be filtered with nonwoven geotextiles selected
on the basis of geotextile permittivity. The standard gradient ratio test did not always reflect the

Source: Aydilek, Ahmet - Department of Civil and Environmental Engineering, University of Maryland at College Park

Collections: Engineering