{"product_id":"isotopic-fractionation-during-microbial-decane-degradation-assessing-bioremediation-at-hydrocarbon-polluted-sites-with-carbon-and-hydrogen-isotopes-von-melanie-hager","title":"Isotopic fractionation during microbial decane degradation","description":"\u003cp\u003eGroundwater from a diesel fuel-contaminated site in Vienna, Austria, was treated in pilot-scale subsurface flow constructed wetlands. The study aims at quantifying the contribution of biodegradation to the total removal of diesel compounds by means of compound-specific isotope analysis (CSIA). This innovative approach requires a constant isotope fractionation during the microbial transformation reaction which leads to an enrichment of the heavy isotopes, i. e. 13C and 2H, in the remaining pollutant. Filter material and\/or groundwater was incubated in laboratory microcosms and the aerobic degradation of n-decane, which was chosen as model compound for diesel hydrocarbons, was monitored. Isotope fractionation was absent in water saturated microcosms because only minor n-decane biodegradation took place. During n-decane biodegradation in moist filter material, on the other hand, small but variable isotopic fractionation factors were found. The different experimental set-ups give indications how mass transfer limitations of hydrophobic molecules might mask isotopic fractionation and the consequences for field applications of CSIA are discussed in detail.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783330502697\"\u003e\u003ch3\u003eAssessing bioremediation at hydrocarbon polluted sites with carbon and hydrogen isotopes\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783330502697","offer_id":39428579098717,"sku":"9783330502697","price":64.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/42fc7800-36ff-45f0-bc19-ac44fd10940b.jpg?v=1773119698","url":"https:\/\/shop.autorenwelt.de\/products\/isotopic-fractionation-during-microbial-decane-degradation-assessing-bioremediation-at-hydrocarbon-polluted-sites-with-carbon-and-hydrogen-isotopes-von-melanie-hager","provider":"Autorenwelt Shop","version":"1.0","type":"link"}