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Title: Systems and methods for the detection of low-level harmful substances in a large volume of fluid

A method and device for the detection of low-level harmful substances in a large volume of fluid comprising using a concentrator system to produce a retentate and analyzing the retentate for the presence of at least one harmful substance. The concentrator system performs a method comprising pumping at least 10 liters of fluid from a sample source through a filter. While pumping, the concentrator system diverts retentate from the filter into a container. The concentrator system also recirculates at least part of the retentate in the container again through the filter. The concentrator system controls the speed of the pump with a control system thereby maintaining a fluid pressure less than 25 psi during the pumping of the fluid; monitors the quantity of retentate within the container with a control system, and maintains a reduced volume level of retentate and a target volume of retentate.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1243044
Assignee:
The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency (Washington, DC) INL
Patent Number(s):
9,285,354
Application Number:
13/607,921
Contract Number:
AC07-05ID14517
Resource Relation:
Patent File Date: 2012 Sep 10
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 54 ENVIRONMENTAL SCIENCES; 60 APPLIED LIFE SCIENCES

Other works cited in this record:

Using ultrafiltration to concentrate and detect Bacillus anthracis, Bacillus atrophaeus subspecies globigii, and Cryptosporidium parvum in 100-liter water samples
journal, September 2007
  • Lindquist, H. D. Alan; Harris, Stephanie; Lucas, Sasha
  • Journal of Microbiological Methods, Vol. 70, Issue 3, p. 484-492
  • DOI: 10.1016/j.mimet.2007.06.007

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