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首页> 外文会议>International Conference on Remediation of Chlorinated adn Recalcitrant Compounds >Proof-of-Concept Study of an Engineered Vapor Bioattenuation Barrier beneath a Building at a Petroleum Hydrocarbon–Impacted Site
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Proof-of-Concept Study of an Engineered Vapor Bioattenuation Barrier beneath a Building at a Petroleum Hydrocarbon–Impacted Site

机译：在石油碳氢化合物冲击部位的建筑物下的工程蒸汽生物静态屏障的概念证明研究

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Field and modeling studies have shown that there are scenarios where petroleum hydrocarbon vapors can pose safety and adverse indoor air quality impacts to buildings above or near petroleum-impacted soils. These generally involve high source vapor concentrations and oxygen-depleted soil gas beneath the building foundation. Field and modeling studies have also shown that petroleum hydrocarbon vapors can significantly attenuate over relatively short distances where oxygen (O2) is present at concentrations above a few percent (v/v). Thus, it may be possible to engineer protective vapor migration barriers by delivering low, but sufficient air/O2 flow to biodegrade the hydrocarbon vapors moving toward buildings. A proof-of-concept study was conducted at a site having relatively uniform, elevated petroleum hydrocarbon vapor concentrations (150 +/41 mg/L-vapor) and depleted O2 (about 1% v/v) beneath and around a building
机译：领域和建模研究表明，有方案，石油碳氢化合物蒸气可能会造成安全性和不利的室内空气质量影响到石油撞击土壤之上或附近的建筑物。这些通常涉及建筑基础下方的高源蒸汽浓度和氧耗尽的土壤气体。领域和建模研究还表明，石油烃蒸汽可以显着衰减在氧气（O2）以高于几十百分之倍（v / v）的浓度上的相对短的距离上。因此，通过输送低但足够的空气/ O2流动以使烃蒸汽朝向建筑物的生物降解，可以改造保护蒸汽迁移屏障。在具有相对均匀的升高的石油烃蒸气浓度（150±41mg / L-蒸气）的位点进行概念证据研究，并在建筑物下方和围绕约1％（约1％v / v）

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