PMID- 16580704
OWN - NLM
STAT- MEDLINE
DCOM- 20061130
LR  - 20070312
IS  - 0043-1354 (Print)
IS  - 0043-1354 (Linking)
VI  - 40
IP  - 8
DP  - 2006 May
TI  - Collision efficiency distribution of a bacterial suspension flowing through 
      porous media and implications for field-scale transport.
PG  - 1591-8
AB  - The collision efficiency (alpha) distribution of a bacterial population was 
      determined using multiple packed-bed columns of varying lengths and analyzing the 
      bacteria clean-bed breakthrough concentrations using a distributed colloid 
      filtration theory. This technique allows the alpha distribution to be determined 
      independently from other effects that can cause non-exponential deposition, 
      including detachment and blocking. It was found that multiple probability density 
      functions (PDF's) could accurately replicate the experimental data. Regardless of 
      which PDF was used, a distributed alpha resulted in significantly greater 
      predicted field-scale transport than when using a single alpha. However, there 
      were wide variations in the predicted field-scale transport between the different 
      distributions, suggesting that lab-scale experiments may not be readily utilized 
      to determine the specific PDF that best represents alpha at the field scale. 
      Finally, blocking was observed in the column effluent curves, underscoring the 
      fact that if non-clean-bed processes occur then an approach such as that utilized 
      in the current study may be used to separate the non-clean-bed and clean-bed 
      processes when determining the collision efficiency distribution.
FAU - Brown, Derick G
AU  - Brown DG
AD  - Department of Civil and Environmental Engineering, Lehigh University, 13 East 
      Packer Avenue, Bethlehem, PA 18015, USA. dgb3@lehigh.edu
FAU - Abramson, Alon
AU  - Abramson A
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20060403
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
SB  - IM
EIN - Water Res. 2007 Feb;41(3):719
MH  - *Bacteria
MH  - Spectrophotometry, Ultraviolet
MH  - *Water Microbiology
EDAT- 2006/04/04 09:00
MHDA- 2006/12/09 09:00
CRDT- 2006/04/04 09:00
PHST- 2006/01/06 00:00 [received]
PHST- 2006/02/17 00:00 [revised]
PHST- 2006/02/20 00:00 [accepted]
PHST- 2006/04/04 09:00 [pubmed]
PHST- 2006/12/09 09:00 [medline]
PHST- 2006/04/04 09:00 [entrez]
AID - S0043-1354(06)00119-9 [pii]
AID - 10.1016/j.watres.2006.02.016 [doi]
PST - ppublish
SO  - Water Res. 2006 May;40(8):1591-8. doi: 10.1016/j.watres.2006.02.016. Epub 2006 
      Apr 3.