A simple positive pressure apparatus for the ultra-filtration of soil solution

Menzies N.W., Bell L.C. and Edwards D.G. (1991) A simple positive pressure apparatus for the ultra-filtration of soil solution. Communications in Soil Science and Plant Analysis, 22 1-2: 137-145. doi:10.1080/00103629109368400


Author Menzies N.W.
Bell L.C.
Edwards D.G.
Title A simple positive pressure apparatus for the ultra-filtration of soil solution
Journal name Communications in Soil Science and Plant Analysis   Check publisher's open access policy
ISSN 1532-2416
Publication date 1991-01-01
Sub-type Article (original research)
DOI 10.1080/00103629109368400
Volume 22
Issue 1-2
Start page 137
End page 145
Total pages 9
Subject 1102 Cardiovascular Medicine and Haematology
1111 Nutrition and Dietetics
Abstract A positive pressure filtration apparatus is described which employs compressed gas to provide the differential pressure required to permit the ultrafiltration of soil solution. The apparatus uses low-cost membrane filter elements and is suitable for use with small volume samples, as there is little retention of solution within the filtration cells. Initial flow rates of ~5 and 25 mL/min were achieved through 0.025 and 0.05 pm pore-diameter filter elements, respectively. Compressed nitrogen is the preferred gas source as exposure of solutions of pH 6 or higher to compressed air resulted in a lowering of pH levels.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 28 Jun 2016, 07:51:00 EST by System User