PMID- 28740357 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 1072-6349 (Print) IS - 1751-7613 (Electronic) IS - 1072-6349 (Linking) VI - 24 IP - 2 DP - 2017 May TI - Diffusion of multiwall carbon nanotubes (MWCNTs) through a high density polyethylene (HDPE) geomembrane. PG - 184-197 LID - 10.1680/jgein.16.00025 [doi] AB - The new applications for carbon nanotubes (CNTs) in various fields and consequently their greater production volume have increased their potential release to the environment. Landfills are one of the major locations where carbon nanotubes are expected to be disposed and it is important to ensure that they can limit the release of CNTs. Diffusion of multiwall carbon nanotubes (MWCNTs) dispersed in an aqueous media through a high-density polyethylene (HDPE) geomembrane (as a part of the landfill barrier system) was examined. Based on the laboratory tests, the permeation coefficient was estimated to be less than 5.1x10(-15) m(2)/s. The potential performance of a HDPE geomembrane and geosynthetic clay liner (GCL) as parts of a composite liner in containing MWCNTs was modelled for six different scenarios. The results suggest that the low value of permeation coefficient of an HDPE geomembrane makes it an effective diffusive barrier for MWCNTs and by keeping the geomembrane defects to minimum during the construction (e.g., number of holes and length of wrinkles) a composite liner commonly used in municipal solid waste landfills will effectively contain MWCNTs. FAU - Saheli, P T AU - Saheli PT AD - GeoEngineering Centre at Queen's-RMC, Queen's University, Kingston, Ontario, Canada, K7L 3N6. FAU - Rowe, R K AU - Rowe RK AD - Professor and Canada Research Chair in Geotechnical and Geoenvironmental Engineering, GeoEngineering Centre at Queen's - RMC, Queen's University, Kingston, Canada, K7L 3N6. FAU - Petersen, E J AU - Petersen EJ AD - Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States. FAU - O'Carroll, D M AU - O'Carroll DM AD - Department of Civil & Environmental Engineering, University of Western Ontario, London, Ontario, Canada. LA - eng GR - 9999-NIST/Intramural NIST DOC/United States PT - Journal Article DEP - 20170403 PL - England TA - Geosynth Int JT - Geosynthetics international JID - 101708768 PMC - PMC5520657 MID - NIHMS856010 OTO - NOTNLM OT - GMB OT - Geosynthetics OT - landfill OT - municipal solid waste OT - permeation coefficient EDAT- 2017/07/26 06:00 MHDA- 2017/07/26 06:01 PMCR- 2018/05/01 CRDT- 2017/07/26 06:00 PHST- 2017/07/26 06:00 [entrez] PHST- 2017/07/26 06:00 [pubmed] PHST- 2017/07/26 06:01 [medline] PHST- 2018/05/01 00:00 [pmc-release] AID - 10.1680/jgein.16.00025 [doi] PST - ppublish SO - Geosynth Int. 2017 May;24(2):184-197. doi: 10.1680/jgein.16.00025. Epub 2017 Apr 3.