Document Detail

Sensitivity analysis for the SimpleTreat model to simulate fate of chemicals in sewage treatment plants.
MedLine Citation:
PMID:  21902049     Owner:  NLM     Status:  In-Process    
SimpleTreat 3.1 predicts the distribution and elimination of chemicals by sewage treatment. The model is used as the default calculation in EUSES 2.0 to estimate exposure concentration in the receiving water, soil and air. A sensitivity analysis was performed to rank input parameters according to their influence on model predictions. Triclosan was selected for the base case. The sewage flow, degradation rates and parameters describing the raw sewage were shown to be the most sensitive inputs. The pH and dissociation constant are very sensitive parameters when working with ionisable compounds. Variation in certain input parameters was propagated through the model to yield greater variation in output parameters with a maximum ratio of 4.0. SimpleTreat 3.1 is a steady state model describing a highly non-steady system. A large variability in the most sensitive parameters is expected within a single sewage plant and parameters should therefore be selected to cover this variability.
M Kah; C D Brown
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  63     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2011  
Date Detail:
Created Date:  2011-09-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  2052-60     Citation Subset:  IM    
Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, UK.
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