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RECORD NUMBER: 324 OF 404

Main Title Study of Physical, Settling, and Thickening Characteristics of a Sludge.
Author Greene., M. H. ;
CORP Author Pacific Northwest Environmental Research Lab., Newport, Oreg. Marine Science Center.;Western Interstate Commission for Higher Education, Boulder, Colo. Resources Development Internship Program.;Portland State Univ., Oreg. Urban Studies Center.
Year Published 1974
Stock Number PB-241 231
Additional Subjects Sludge ; Test methods ; Sewage treatment ; Physical properties ; Settling ; Density(Mass/volume) ; Solids ; Salinity ; Sea water ; New York ; Suspended solids ; Nassau County(New York)
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NTIS  PB-241 231 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 34p
Abstract Tests were conducted to obtain the physical characteristics of sludge obtained from Nassau County's Bay Park sewage treatment plant, Long Island, New York. The settling characteristics of the sludge in seawater were determined by modified pipette analysis as a function of suspended solids concentration, salinity, and depth of settling. The sludge was subjected to tests to determine its thickening capability. The bulk specific gravity of the sludge was determined. The specific gravity of the liquid phase was constant at 1.000 g/cc. For different samples the precentage solids by weight varied from .8 to 2.2%. The specific gravity of the solids varied from 1.53 to 1.62 g/cc with corresponding volatile solids from 70.3 to 61.4%. The maximum solids concentration obtainable in laboratory tests was 5.5%.
Supplementary Notes Prepared in cooperation with Western Interstate Commission for Higher Education, Boulder, Colo. Resources Development Internship Program, and Portland State Univ., Oreg. Urban Studies Center.
PUB Date Free Form Aug 74
Category Codes 13B; 68D
NTIS Prices PC A03/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326603714
Origin NTIS
Type CAT