期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 408, 期 9, 页码 2068-2074出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2009.11.042
关键词
Anaerobic degradation; Pharmaceutical; PPCP; Sorption
资金
- Hinkley Center for Solid and Hazardous Waste Management
- United States Environmental Protection Agency Office of Research and Development National Risk Management Research Laboratory
Research examined the anaerobic degradation of 17 alpha-ethynylestradiol, acetaminophen, acetylsalicylic acid, ibuprofen, metoprolol tartrate, and progesterone by methanogenic bacteria. Using direct sample analysis and respirometric testing, anaerobic degradation was examined with (a) each compound as the sole organic carbon source and (b) each compound at a lower concentration (250 mu g/L) and cellulose serving as the primary organic carbon source. The change in pharmaceutical concentration was determined following 7, 28, 56, and 112 days of anaerobic incubation at 37 degrees C. Only acetylsalicylic acid demonstrated significant degradation; the remaining compounds showed a mixture of degradation and abiotic removal mechanisms. Experimental results were compared with BIOWIN, an anaerobic degradation prediction model of the US Environmental Protection Agency. The BIOWIN model predicted anaerobic biodegradability of the compounds in the order: acetylsalicylic acid > metoprolol tartrate > ibuprofen > acetaminophen > 17 alpha-ethinylestradiol > progesterone. This corresponded well with the experimental findings which found degradability in the order: acetylsalicylic acid > metoprolol tartrate > acetaminophen > ibuprofen. Published by Elsevier BM.
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