| Main Title |
Studies on densification of coal mine drainage sludge / |
| Author |
Streeter, Robert C., ;
Streeter, R. C. ;
Streete, R. C. ;
Glen, R. A. ;
Youn, R. K.
|
| Other Authors |
|
| CORP Author |
Bituminous Coal Research, Inc. |
| Publisher |
United States Environmental Protection Agency, Water Quality Office, |
| Year Published |
1971 |
| Report Number |
W7113515; EPAWQO-14010-EJT-09/71; US1 RL550.8 71S725 |
| Stock Number |
PB-203 189 |
| OCLC Number |
00241479 |
| Subjects |
Acid mine drainage ;
Sewage sludge--Drying
|
| Additional Subjects |
( Mine waters ;
Neutralization) ;
( Coal mines ;
Mine waters) ;
( Sludge disposal ;
Mine waters) ;
( Dewatering ;
Sludge) ;
( Water pollution ;
Mine waters) ;
Calcium oxides ;
Waste disposal ;
Materials handling ;
Magnetic separators ;
Carbonation ;
Dewatering ;
Filtration ;
Precipitation(Chemistry) ;
Coagulation ;
Aluminum ;
Contaminants ;
Magnesium ;
Concentrating ;
Magnetic precipitation ;
Mine acid drainage ;
Water pollution control
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 14010-EJT-09/71 |
|
Headquarters Library/Washington,DC |
04/10/2015 |
| ELBD ARCHIVE |
EPA 14010-EJT-09/71 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 14010-EJT-09-71 |
repository copy |
AWBERC Library/Cincinnati,OH |
05/21/2019 |
| ELBD |
EPA 14010-EJT-09-71 |
|
AWBERC Library/Cincinnati,OH |
08/26/2020 |
| NTIS |
PB-203 189 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
x, 113 pages : illustrations, charts, plans ; 28 cm |
| Abstract |
Bench scale batch experiments were performed on sludges obtained from line neutralization of coal mine drainage in an attempt to alleviate present problems in sludge handling and disposal. Tests were of an exploratory nature and did not afford sufficient data for cost analyses. Ferro Magnetic sludge densification, filter aids, coagulant aids, heating, freeze drying, and coprecipitation of calcium carbonate through addition of CO2 were tested. Of these, freeze drying, CO2 addition, and ferro magnetic treatment were shown to be feasible alternatives to present disposal methods. Each of these methods resulted in settled sludge volume reducation of approximately 90% and increases in sludge solids contents of from 0.5 to about 5% after 30 min. settling periods. The ferro magnetic process has the advantages of possible recovery of a useful product, and elimination of costly settling lagoons, but is very sensitive to aluminum and requires a considerable amount of heat. Sludge freezing is the simplest conceptual approach and is apparently effective for any lime produced sludge. The CO2 addition method offers the possibility of partial recovery and recycling of both CaO and CO2 through sludge calcination. |
| Notes |
"September 1971." Includes bibliographical references (pages 111-113). |
| Contents Notes |
Bench scale batch experiments were performed on sludges obtained from line neutralization of coal mine drainage in an attempt to alleviate present problems in sludge handling and disposal. Tests were of an exploratory nature and did not afford sufficient data for cost analyses. Ferro Magnetic sludge densification, filter aids, coagulant aids, heating, freeze drying, and coprecipitation of calcium carbonate through addition of CO2 were tested. Of these, freeze drying, CO2 addition, and ferro magnetic treatment were shown to be feasible alternatives to present disposal methods. Each of these methods resulted in settled sludge volume reduction of approximately 90% and increases in sludge solids contents of from 0.5 to about 5% after 30 min. settling periods. The ferro magnetic process has the advantages of possible recovery of a useful product, and elimination of costly settling lagoons, but is very sensitive to aluminum and requires a considerable amount of heat. Sludge freezing is the simplest conceptual approach and is apparently effective for any lime produced sludge. The CO2 addition method offers the possibility of partial recovery and recycling of both CaO and CO2 through sludge calcination. |
| Place Published |
Washington, D.C. |
| Supplementary Notes |
Paper copy available from GPO $1.25 as stock no. 5501-0101. |
| Access Notes |
Also issued online. |
| Corporate Au Added Ent |
Bituminous Coal Research, Inc.,; United States. Environmental Protection Agency. Water Quality Office. |
| Title Ser Add Ent |
Water pollution control research series. |
| PUB Date Free Form |
1971 |
| Series Title Traced |
Water pollution control research series |
| Series Title Untraced |
Water pollution control research series |
| NTIS Prices |
PC-GPO/MF A01-NTIS |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| LCCN |
78614574 |
| Merged OCLC records |
150482553 |
| OCLC Time Stamp |
20190514062831 |
| Language |
eng |
| SUDOCS Number |
EP 2.10:14010 EJT 09/71 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
03550cam 2200553 i 45010 |
