000 02675nam  2200385zi 4500
0019.870711
003CaOODSP
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006m     o  d f      
007cr bn|||||||||
008190327s1991    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
0861 |aEn13-5/91-76E-PDF
1001 |aDroppo, I. G., |eauthor.
24510|aSuspended sediment concentration by filtration : |beffect on primary grain-size distribution (technical note) / |cI.G. Droppo, B.G. Krishnappan and E.D. Ongley.
264 1|aBurlington, Ontario : |bNational Water Research Institute = Institut national de recherche sur les eaux, |c[1991]
300 |a1 online resource (4 unnumbered pages, 9 pages, 3 unnumbered pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |vno. 91-76
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"The influence of concentrating suspended sediments by filtration for analysis with the Malvern Particle Sizer is determined. Low concentration solutions with known primary grain-size distributions (determined by a Malvern Particle Sizer) were filtered onto two types of filters (0.4 µm Nuclepore polycarbonate plastic membrane filter and 0.45 µm Millipore cellulose membrane filter). The sediments were resuspended by a distilled water wash to produce higher concentration solutions, sonicated, and again analyzed by the Malvern Particle Sizer for their primary grain-size distributions. The comparison of the initial and resuspended grain size distributions revealed minimal difference between the two. There was some evidence of filter disintegration and pore clogging, however, their influence on the distributions was minimal. It is expected that the errors induced by pore clogging may increase with samples containing significant amounts of organic matter"--Abstract.
546 |aIncludes management perspective and abstract in French.
69207|2gccst|aSediments
7001 |aKrishnappan, B. G., |d1943- |eauthor.
7001 |aOngley, Edwin D., |eauthor.
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada). |bRivers Research Branch.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 91-76.|w(CaOODSP)9.844121
85640|qPDF|s1.43 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-76-eng.pdf