Characterization of commercial ceramic adsorbents and its application on naphthenic acids removal of petroleum distillates
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Naphthenic Acids in Athabasca Oil Sands Tailings Waters Are Less Biodegradable than Commercial Naphthenic Acids
Naphthenic acids (NAs) are natural constituents in many petroleum sources, including bitumen in the oil sands of Northern Alberta, Canada. Bitumen extraction processes produce tailings waters that cannot be discharged to the environment because NAs are acutely toxic to aquatic species. However, aerobic biodegradation reduces the toxic character of NAs. In this study, four commercial NAs and the...
متن کاملAquatic hazard assessment of a commercial sample of naphthenic acids.
This paper presents chemical composition and aquatic toxicity characteristics of a commercial sample of naphthenic acids (NAs). Naphthenic acids are derived from the refining of petroleum middle distillates and can contribute to refinery effluent toxicity. NAs are also present in oil sands process-affected water (OSPW), but differences in the NAs compositions from these sources precludes using ...
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ژورنال
عنوان ژورنال: Materials Research
سال: 2007
ISSN: 1516-1439
DOI: 10.1590/s1516-14392007000200021