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Analysis of suspended solids by single-particle scatteringLight scattering by individual particulates is used in a multiple-detector system to categorize the composition of suspended solids in terms of broad particulate categories. The scattering signatures of red clay and taconite tailings, the two primary particulate contaminants in western Lake Superior, along with two types of asbestiform fibers, amphibole and chrysolite, were studied in detail. A method was developed to predict the concentration of asbestiform fibers in filtration plant samples for which electron microscope analysis was done concurrently. Fiber levels as low as 50,000 fibers/liter were optically detectable. The method has application in optical categorization of samples for remote sensing purposes and offers a fast, inexpensive means for analyzing water samples from filtration plants for specific particulate contaminants.
Document ID
19790051206
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Diehl, S. R.
(Minnesota Univ. Duluth, MN, United States)
Smith, D. T.
(Minnesota Univ. Duluth, MN, United States)
Sydor, M.
(Minnesota, University Duluth, Minn., United States)
Date Acquired
August 9, 2013
Publication Date
May 15, 1979
Publication Information
Publication: Applied Optics
Volume: 18
Subject Category
Instrumentation And Photography
Accession Number
79A35219
Funding Number(s)
CONTRACT_GRANT: NGL-24-005-263
CONTRACT_GRANT: EPA-R-804361-02-0
Distribution Limits
Public
Copyright
Other

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