| Main Title |
A study of nitrification and denitrification / |
| Author |
Mechalas, B. J. ;
Allen, II, Paul H. ;
Matyskiel, Walter W.
|
| Other Authors |
|
| CORP Author |
Envirogenics Co., El Monte, Calif. |
| Publisher |
Advanced Waste Treatment Research Laboratory : For sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington, |
| Year Published |
1970 |
| Report Number |
FWQA-14-12-498; FWQA-17010-DRD; 04667,; 17010-DRD-07/70 |
| Stock Number |
PB-197 658 |
| OCLC Number |
54482501 |
| Subjects |
Nitrification ;
Sewage--Purification--Biological treatment ;
Sewage--Purification--Nitrogen removal
|
| Additional Subjects |
( Sewage treatment ;
Denitration) ;
( Chemical removal(Sewage treatment) ;
Nitrates) ;
Nutrients ;
Nitration ;
Biochemical oxygen demand ;
Reaction kinetics ;
Aerobic processes ;
Mathematical models ;
Ammonia ;
Oxidation ;
Tertiary sewage treatment ;
Chemical oxygen demand
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EMBD MF |
PB-197658 |
|
NRMRL/GWERD Library/Ada,OK |
05/07/2004 |
| NTIS |
PB-197 658 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 90 pages : illustrations ; 28 cm. |
| Abstract |
A program to incorporate biological denitrification into a waste water treatment system was undertaken with the objective of developing a process that depends exclusively on the carbon compounds contained in the waste water to supply metabolic energy to the microflora. In the experimental program the incoming nitrogenous material was oxidized to nitrate in an aerobic phase and reduced to nitrogen gas in an anaerobic phase. Conditions for developing a nitrifying microflora were investigated using a primary waste water effluent as feed. Anaerobic batch experiments were carried out to determine if stored reserves could support denitrification. Under appropriate conditions almost 100% of the nitrates could be reduced. The effluent from the aerobic unit served as the feed for the anaerobic process. At appropriate intervals this situation was reversed by switching the airflows and feed sources. Over 95% of the waste water nitrogen in waste water was removed. Nitrate-nitrogen removal rates ranged from 0.600 to 1.00 mg/hr/g MLVS. A mathematical model was developed which described the response to cycled aerobic-anaerobic operation. The alternating cycle approach was shown to be an effective method for removing nitrogen from waste water. (Author) |
| Notes |
"17010DRD07/70." Prepared for the Federal Water Quality Administration under contract #14-12-498. Includes bibliographical references (page 81). Microfiche. |
| Place Published |
Cincinnati, |
| Supplementary Notes |
Paper copy available from Superintendent of Documents, GPO, Washington, D.C. 20402. $1.00 as I67.13/4:17010DRD07/70. |
| Corporate Au Added Ent |
Advanced Waste Treatment Research Laboratory. ; United States. Federal Water Quality Administration. |
| PUB Date Free Form |
1970. |
| Series Title Traced |
Water pollution control research series |
| NTIS Prices |
PC SOD MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20040507165910 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01374nam 2200337Ka 45020 |
