Record Display for the EPA National Library Catalog


Main Title Sewage sludge entrenchment system for use by small municipalities /
Author Walker, J. M., ; Ely, L. ; Hundemann, P. ; Frankos, N. ; Kaminski., A.
Other Authors
Author Title of a Work
Walker, J. M.,
CORP Author Agricultural Research Service, Beltsville, Md. Biological Waste Management and Soil Nitrogen Lab.;Municipal Environmental Research Lab., Cincinnati, Ohio.
Publisher United States Environmental Protection Agency, Municipal Environmental Research Laboratory, Office of Research and Development,
Year Published 1978
Report Number EPA 600/2-78-018
Stock Number 22161
OCLC Number 03922589
ISBN pbk.
Subjects Sewage sludge. ; Cities and towns.
Additional Subjects Land reclamation ; Sludge disposal ; Municipalities ; Ditches ; Soil properties ; Drainage ; Earth handling equipment ; Cost estimates ; Manpower ; Calcium oxides ; Odors ; Surface water runoff ; Monitoring ; Viruses ; Metals ; Nitrogen ; Feasibility ; Trenching
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600/2-78-018 Headquarters Library/Washington,DC 03/31/2009
EJBD  EPA 600/2-78-018 Headquarters Library/Washington,DC 05/02/2013
ELBD RPS EPA 600-2-78-018 repository copy AWBERC Library/Cincinnati,OH 11/16/2016
ESAD  EPA 600-2-78-018 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-280 662 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 71 pages : illustrations, figures, tables ; 28 cm.
A method of disposing of dewatered sewage sludge by entrenching it into soil was developed for small communities. Readily available and relatively inexpensive equipment was used. Included were a tractor equipped with a loader and backhoe, and dump truck or concrete mixer truck. A tractor operator and a truck driver were required. Trenches, dug with the backhoe, were 60 cm wide, 60 cm deep, and 60 cm apart. The time required to entrench 12 tons of dewatered sludge was one hour. The estimated cost of sludge incorporation was less than $15.00 per ton of dewatered sludge. Cost items included equipment, personnel, hauling (64 km round trip), land, drainage monitoring, and cultivation. Reuse of a previously trenched site indicated that about 2 years is the minimum satisfactory time lapse between the first and second entrenchment. Trenching of limed sludge cake can be done without odor or surface water runoff problems. Trenching is most appropriate on low quality land where surface application is not feasible.
"Interagency Agreement No. EPA-IAG-D4-0510." "February 1978." Includes bibliographical references (page 71).