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Hydraulic and Particle Size Characteristics of Some Diatomite Filter Aids
This study presents data pertaining to the hydraulic and particle size characteristics of commercial grades of diatomite used as filter aids. To achieve this, the specific study objectives were to: evaluate the reproducibility and relative simplicity of two ASTM methods for determining the grain size of soils when those methods are used to determine the particle size distribution of diatomite filter aids; determine the particle size distribution of different lots of commercial grades of diatomite filter aids; determine K3 values of different grades and of different lots of the same grade of diatomite (K3 is a constant for a given grade of diatomite at 20°C and is inversely proportional to its coefficient of permeability); and, determine whether a relationship exists between the K3 value and particle size distribution. The determination of the permeability of diatomite filter aids in this study was confined to the evaluation of K3 coefficients in the recently developed diatomite filtration equation. The ASTM Method for Grain Size Analysis of Soils‐Designation D422‐39 (Method 1) and ASTM Tentative Method for Grain Size Analysis of Soils ‐Designation D422‐61T (Method 2) were used in this study for determining particle size distribution.
Hydraulic and Particle Size Characteristics of Some Diatomite Filter Aids
This study presents data pertaining to the hydraulic and particle size characteristics of commercial grades of diatomite used as filter aids. To achieve this, the specific study objectives were to: evaluate the reproducibility and relative simplicity of two ASTM methods for determining the grain size of soils when those methods are used to determine the particle size distribution of diatomite filter aids; determine the particle size distribution of different lots of commercial grades of diatomite filter aids; determine K3 values of different grades and of different lots of the same grade of diatomite (K3 is a constant for a given grade of diatomite at 20°C and is inversely proportional to its coefficient of permeability); and, determine whether a relationship exists between the K3 value and particle size distribution. The determination of the permeability of diatomite filter aids in this study was confined to the evaluation of K3 coefficients in the recently developed diatomite filtration equation. The ASTM Method for Grain Size Analysis of Soils‐Designation D422‐39 (Method 1) and ASTM Tentative Method for Grain Size Analysis of Soils ‐Designation D422‐61T (Method 2) were used in this study for determining particle size distribution.
Hydraulic and Particle Size Characteristics of Some Diatomite Filter Aids
Dillingham, James H. (author) / Baumann, E. Robert (author)
Journal ‐ American Water Works Association ; 56 ; 793-808
1964-06-01
16 pages
Article (Journal)
Electronic Resource
English
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