Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Permeation of BTEX compounds through HDPE pipes under simulated field conditions
Pipe‐bottle tests were conducted to investigate the permeation of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds through 1‐in.‐diameter high‐density polyethylene (HDPE) pipe exposed to gasoline‐contaminated water and gasolinecontaminated unsaturated soil. Using the time‐lag method, the concentrationdependent diffusion coefficients of BTEX compounds were estimated to be on the order of ~2 to ~9 × 10‐9 cm2/s. Smaller pipes were more vulnerable to permeation than larger pipes, and pipes subject to periodic stagnation were more likely to exceed the maximum contaminant level of benzene than were pipes with continuous water flow. Under otherwise identical conditions, HDPE pipes buried in a soil of high organic matter were permeated to a lesser extent than pipes buried in a soil of low organic matter for exposure times exceeding 30 days.
Permeation of BTEX compounds through HDPE pipes under simulated field conditions
Pipe‐bottle tests were conducted to investigate the permeation of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds through 1‐in.‐diameter high‐density polyethylene (HDPE) pipe exposed to gasoline‐contaminated water and gasolinecontaminated unsaturated soil. Using the time‐lag method, the concentrationdependent diffusion coefficients of BTEX compounds were estimated to be on the order of ~2 to ~9 × 10‐9 cm2/s. Smaller pipes were more vulnerable to permeation than larger pipes, and pipes subject to periodic stagnation were more likely to exceed the maximum contaminant level of benzene than were pipes with continuous water flow. Under otherwise identical conditions, HDPE pipes buried in a soil of high organic matter were permeated to a lesser extent than pipes buried in a soil of low organic matter for exposure times exceeding 30 days.
Permeation of BTEX compounds through HDPE pipes under simulated field conditions
Mao, Feng (Autor:in) / Gaunt, James A. (Autor:in) / Cheng, Chu‐Lin (Autor:in) / Ong, Say Kee (Autor:in)
Journal ‐ American Water Works Association ; 102 ; 107-118
01.03.2010
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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