Main Title |
Anaerobic-aerobic treatment process for the removal of priority pollutants |
Author |
Slonim, Z. ;
Lien, L. T. ;
Eckenfelder, W. W. ;
Roth, J. A. ;
Slonim, Zahava
|
Other Authors |
|
CORP Author |
Vanderbilt Univ., Nashville, TN.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Publisher |
Robert S. Kerr Environmental Research Laboratory : |
Year Published |
1985 |
Report Number |
EPA 600/2-85/077 |
Stock Number |
PB85-226900 |
OCLC Number |
12594765 |
Subjects |
Water--Purification--Biological treatment
|
Additional Subjects |
Anaerobic processes ;
Aerobic processes ;
Herbicides ;
Water pollution control ;
Activated sludge process ;
Fluidized bed processors ;
Industrial waste treatment ;
Pesticides ;
Microorganisms ;
Sucrose ;
Biodeterioration ;
Cresol/dinitro ;
Municipal wastes ;
Biological processes ;
Pretreatment(Water)
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EMBD |
EPA/600/2-85/077 |
|
NRMRL/GWERD Library/Ada,OK |
10/27/1995 |
NTIS |
PB85-226900 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xii, 109 p. : ill. ; 28 cm. |
Abstract |
The removal of 4,6-dinitro-o-cresol (DNOC) was investigated using an anaerobic recycle fluidized bed reactor as a pretreatment stage followed by an activated sludge reactor. The DNOC was completely converted during the anaerobic pretreatment stage for influent DNOC concentrations as high as 600 mg/1. While complete conversion of DNOC occurred during the anaerobic pretreatment stage, there was only 25% COD removal. The subsequent aerobic activated sludge stage reduced the anaerobic stage effluent COD by 80%, resulting in about 85% overall removal. Batch tests established a range of DNOC loading rates for the anaerobic fluidized bed. The batch tests also indicated that DNOC did not degrade in the absence of a readily biodegradable co-substrate, and could not be used as a single carbon source by the anaerobic bacteria. This investigation used sucrose as the co-substrate. Anaerobic DNOC biodegradation was found to be a function of sucrose concentration. Previous investigation of aerobic treatment of DNOC using conventional activated sludge process showed that DNOC removal is less than 25% and the concentration of DNOC that is tolerated by activated sludge microorganisms is only about 50-60 mg/1. The present investigation demonstrated that anaerobic-aerobic treatment is an effective treatment process for the removal of DNOC. |
Notes |
Bibliography: p. 64-69. |