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Main Title An approach for comparing health risks of wastewater treatment alternatives : a limited comparison of health risks between slow rate land treatment and activated sludge treatment and discharge /
Author Crites, Ronald W. ; Uiga, Ants
Other Authors
Author Title of a Work
Uiga, Ants.
Seabrook, Belford L.
Lim, Lam K.
CORP Author Environmental Protection Agency, Washington, DC. Municipal Construction Div.
Publisher U.S. Environmental Protection Agency, Office of Water Program Operations, Municipal Construction Division,
Year Published 1979
Report Number EPA 430/9-79-009; MCD-41; EPA/MCD-41
Stock Number PB-298 228
OCLC Number 05854564
Subjects Sewage disposal. ; Sewage--Purification.
Additional Subjects Sewage treatment ; Water pollution control ; Comparison ; Activated sludge process ; Humans ; Recommendations ; Public health ; Dosage ; Responses ; Risk ; Assessments ; Waste water ; Surface waters ; Ground water ; Health risks ; Environmental health ; Pathogens
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 430-9-79-009 Headquarters Library/Washington,DC 02/15/2011
EJBD  EPA 430-9-79-009 Headquarters Library/Washington,DC 08/13/2013
EJDD  EPA 430/9-79-009 Env Science Center Library/Ft Meade,MD 03/14/1997
EJED  EPA 430-9-79-009 OCSPP Chemical Library/Washington,DC 04/13/2020
EKCD  EPA 430/9-79-009 CEMM/GEMMD Library/Gulf Breeze,FL 05/01/2018
ELBD RPS EPA 430-9-79-009 repository copy AWBERC Library/Cincinnati,OH 04/06/2015
NTIS  PB-298 228 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 66 pages : illustrations ; 28 cm.
The objective of this report is to develop an approach for comparing the health effects of land treatment and conventional treatment and discharge systems. An example assessment between activated sludge and slow rate land treatment of wastewater was presented based on the following assumptions: Flow of 3 Mgal/d of domestic wastewater. Activated sludge flowsheet with (1) disinfection and (2) surface water discharge. Slow rate land treatment flowsheet with (1) aerated lagoon preapplication treatment, (2) storage, (3) no disinfection, and, (4) percolate water recovery by underdrains and surface water discharge. The qualitative results indicate that both conventional and land treatment systems, which are well maintained and have good operating conditions, provide a large measure of safety for public health. Land treatment systems that involve slow infiltration offer greater protection against parasites and viruses, trace metals, nitrate, trace organics, and halogenated organics.
"September 1979." Includes bibliographical references (pages 61-66).