PMID- 23628903 OWN - NLM STAT- MEDLINE DCOM- 20140109 LR - 20150921 IS - 1096-3669 (Electronic) VI - 31 IP - 7 DP - 2013 Jul TI - Development of reactive artificial liner using recycled materials. 2. Chemical transport properties. PG - 714-21 LID - 10.1177/0734242X13488705 [doi] AB - Volatile organic compounds (VOCs) have so far been found to permeate through geomembranes within days and potentially pollute the surrounding groundwater if no sufficient depth of underlain soil barrier existed In order to cope with the fast breakthrough of VOCs through high-density polyethylene (HDPE) geomembrane in the composite liner system, a composite material made of recycled materials was proposed and its mechanical properties were analyzed in a previous study. This artificial liner was composed of crumb rubber, organo-clay, silica fume and epoxy binder together with an environmentally-friendly solvent recycled from paper pulping, and dimethyl sulfoxide as a plasticizer. In this study, the new artificial liner and a typical HDPE geomembrane were tested to compare their abilities to mitigate the movement of VOCs, specifically partition coefficient, diffusion coefficient and mass fluxes. It was found that this new artificial liner had 2-3 orders of magnitude less VOC mass flux than the HDPE geomembrane. The new artificial liner is thought to have a great potential for containing VOCs, even with a thickness of 2.5 cm, and as a substitute for the clay liner. The cost of installing the artificial liner was estimated to be $13.78/m(2). This is lower than the current geomembrane-related price of $19.70-26.91/m(2). The new liner might give a new perspective in future liner design and alleviate the concerning issue of groundwater pollution caused by landfill leachate, which might contain highly mobile VOCs. FAU - Chin, Johnnie Y AU - Chin JY AD - SunEdison, Beltsville, USA. FAU - Asavanich, Pitch AU - Asavanich P FAU - Moon, Kyong-Whan AU - Moon KW FAU - Park, Jae K AU - Park JK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130429 PL - England TA - Waste Manag Res JT - Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA JID - 9881064 RN - 0 (Volatile Organic Compounds) RN - 9002-88-4 (Polyethylene) SB - IM MH - Polyethylene/chemistry MH - *Recycling MH - Volatile Organic Compounds/*chemistry OTO - NOTNLM OT - Landfill liner OT - crumb rubber OT - diffusion OT - groundwater pollution OT - leachate OT - mass flux OT - partition OT - recycled materials EDAT- 2013/05/01 06:00 MHDA- 2014/01/10 06:00 CRDT- 2013/05/01 06:00 PHST- 2013/05/01 06:00 [entrez] PHST- 2013/05/01 06:00 [pubmed] PHST- 2014/01/10 06:00 [medline] AID - 0734242X13488705 [pii] AID - 10.1177/0734242X13488705 [doi] PST - ppublish SO - Waste Manag Res. 2013 Jul;31(7):714-21. doi: 10.1177/0734242X13488705. Epub 2013 Apr 29.