Record Display for the EPA National Library Catalog
RECORD NUMBER: 32 OF 43
|OLS Field Name||OLS Field Data|
|Main Title||Sludge conditioning using SO2 and low pressure for production of organic feed concentrate /|
|Author||Weinberg, Myron S. ; Weinber, Myron S. ; Weis, Hans K. ; Palanke, Allen L. ; Sheffne, A. Leonard|
|CORP Author||Snell (Foster D.), Inc., Florham Park, N.J.|
|Publisher||U.S. Environmental Protection Agency, National Environmental Research Center for the Office of Research and Monitoring,|
|Report Number||EPA-670/2-73-062; PB223343|
|Stock Number||PB 223 343|
|Subjects||Sewage sludge--Conditioning--Costs. ; Feeds--Analysis. ; Teratogenicity testing.|
|Additional Subjects||( Sludge disposal ; Utilization) ; ( Sewage treatment ; Sulfur dioxide) ; ( Feeding stuffs ; Sludge disposal) ; Animal nutrition ; Operating costs ; Filterability ; Sludge drying ; Solubility ; Dewatering ; Cost estimates ; Fertility ; Congenital abnormalities ; Supplements ; Laboratory animals ; Sludge treatment ; Food supplements ; Lactation|
|Collation||xvii, 155 pages : illustrations|
Activated sludge from four municipal sewage plants was treated with 0-5% SO2 at pressures of 50-100 psig. The filterability of the treated sludges was improved and the treatment solubilized from 26 to 44% of the initial insoluble solids. The clear, light yellow filtrates were concentrated and then spray-dried to flowable, hygroscopic, tan powders having nutritional value as an animal feed supplement. Capital investment and manufacturing costs for a plant producing a 50% concentrate or dry product were estimated. Effects on reproductive performance of this organic feed concentrate (OFC) were investigated in rats, rabbits and chickens using nutritionally balanced diets.
Technical report. Environmental Protection Agency. Contract Number: Contract #14-12-813 "Project officer Dr. Robert B. Dean." "September 1973." Includes bibliographical references (page 155). "EPA-670/2-73-062." Photocopy.