Main Title |
Development of on-shore treatment system for sewage from watercraft waste retention system / |
Author |
Robins, James H., ;
Robbins, James H. ;
Green., Arthur C.
|
Other Authors |
|
CORP Author |
FMC Corp., San Jose, Calif. Advanced Products Div. |
Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1974 |
Report Number |
EPA-670/2-74-056; EPA-68-32-0220 |
Stock Number |
PB-234 645 |
OCLC Number |
02032049 |
Subjects |
Ships--Waste disposal ;
Sewage--Purification
|
Additional Subjects |
Boats ;
Harbor facilities ;
Sewage treatment ;
Additives ;
Suspended sediments ;
Performance evaluation ;
Biochemical oxygen demand ;
Nutrients ;
Cost estimates ;
Operating costs ;
Zinc inorganic compounds ;
Recreation ;
Physical chemical treatment ;
Chemical oxygen demand
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 670-2-74-056 |
c.1 |
Headquarters Library/Washington,DC |
07/17/2013 |
ELBD ARCHIVE |
EPA 670-2-74-056 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 670-2-74-056 |
|
AWBERC Library/Cincinnati,OH |
01/02/1998 |
NTIS |
PB-234 645 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
x, 114 pages : illustrations ; 27 cm. |
Abstract |
A two-phase program developed and demonstrated a new method for on-shore treatment of sewage from recreational watercraft. Phase I characterized wastes and chemical additives associated with recirculating/retention systems. Statistical analysis determined probable ranges of waste characteristics as a function of watercraft type and location. Typical wastes had suspended solids and biochemical oxygen demand of 2000 mg/l. Respirometer studies evaluated toxicity of additives to activated sludge. Treatability of chemical/sewage mixtures was determined from pilot-scale activated sludge plant operations. Cell yield coefficients were calculated. Photomicrographs recorded physical changes to activated sludge. Phase II field tested full-scale physical-chemical treatment equipment operating on watercraft wastes. Average removal efficiencies for suspended solids, biochemical and chemical oxygen demand, phosphate, and zinc were greater than 90 percent. Discharge solids were nonodorous and innocuous. Postchlorination increased total-nitrogen removal from 30 to 70 percent. Operating costs were determined. |
Notes |
"Contract no. 68-32-0220; Program element no. 1BB038." Includes bibliographical references (pages 81-82). "July 1974." Report prepared by FMC Corporation, Advanced Products Division, San Jose, California. |
Contents Notes |
Conclusions -- Recommendations -- Introduction -- Characteristics of watercraft wastes -- Characteristics of chemical additives -- Treatability of sewage containing chemical additives -- Activated sludge treatment of chemical wastes -- Process description -- Laboratory process studies -- Process field testing -- Process evaluation -- Discussion. "A two-phase program developed and demonstrated a new method for on-shore treatment of sewage from recreational watercraft"--Page iv. |