Document Detail

Settling velocity of particulate pollutants from combined sewer wet weather discharges.
MedLine Citation:
PMID:  19092225     Owner:  NLM     Status:  MEDLINE    
Settling velocities of TSS and of particulate pollutants (COP, PDCO, PTKN, PCu, PPb, PZn, PPAH) measured on a wide range of wet weather flow (WWF) samples collected at different levels of the Parisian combined sewer system are reported. The recorded V30 (0.01 to 0.1 mm s(-1)) and V50 (0.09 to 0.6 mm s(-1)) values exceed by a factor 10 those of dry weather sewage and also exceed the values measured for pavement runoff. These values lie however often below the 0.28 mm s(-1) reference value considered in France for the design of WWF settling facilities. A decrease in settleability is observed between a small upstream catchment and larger scaled downstream catchments. The settling behaviour of particulate pollutants varies depending on the considered parameter and can differ significantly from the TSS behaviour, due to a non homogeneous distribution of micropolluants over the different classes of particles. PZn and PTKN appear far less settleable than TSS, whereas PPAH show higher settleability.
M C Gromaire; M Kafi-Benyahia; J Gasperi; M Saad; R Moilleron; G Chebbo
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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:  58     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2008  
Date Detail:
Created Date:  2008-12-18     Completed Date:  2009-02-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  2453-65     Citation Subset:  IM    
Copyright Information:
IWA Publishing 2008.
Université Paris-Est, Cereve, UMR-MA102-AgroParisTech, Marne-la-Vallée, France.
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MeSH Terms
Carbon / analysis
Drainage, Sanitary*
Metals / chemistry
Nitrogen / chemistry
Organic Chemicals / chemistry
Particle Size
Particulate Matter / chemistry*
Polycyclic Hydrocarbons, Aromatic / chemistry
Waste Disposal, Fluid
Water Pollutants / chemistry*
Reg. No./Substance:
0/Metals; 0/Organic Chemicals; 0/Particulate Matter; 0/Polycyclic Hydrocarbons, Aromatic; 0/Water Pollutants; 7440-44-0/Carbon; 7727-37-9/Nitrogen

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