|
Records |
Links |
|
Author |
Dillard, G. |
|
|
Title |
A win-win way to clean up by changing ionic state, new process can precipitate heavy metals |
Type |
Journal Article |
|
Year |
2000 |
Publication |
Pay Dirt |
Abbreviated Journal |
|
|
|
Volume |
734 |
Issue |
|
Pages |
10-11 |
|
|
Keywords |
acid mine drainage; California; chemical composition; companies; environmental analysis; environmental management; heavy metals; ion exchange; ions; metal ores; metals; mining; pollutants; pollution; precipitation; processes; remediation; soils; surface water; United States; water treatment 22, Environmental geology |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
A win-win way to clean up by changing ionic state, new process can precipitate heavy metals; 2004-029026; illus. United States (USA); GeoRef; English |
Approved |
no |
|
|
Call Number |
CBU @ c.wolke @ 5822 |
Serial |
401 |
|
Permanent link to this record |
|
|
|
|
Author |
Aube, B.C.; Zinck, J.M. |
|
|
Title |
Comparison of AMD treatment processes and their impact on sludge characteristics |
Type |
Journal Article |
|
Year |
1999 |
Publication |
|
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
acid mine drainage cost decontamination density discharge geochemistry hydrochemistry leaching lime metals mine dewatering neutralization pH pollution remediation sludge stability tailings toxicity viscosity waste disposal water treatment 22, Environmental geology |
|
|
Abstract |
Lime neutralisation for the treatment of acid mine drainage is one of the oldest water pollution control techniques practised by the mineral industry. Several advances have been made in the process in the last thirty years, particularly with respect to discharge concentrations and sludge density. However, the impact of different treatment processes on metal leachability and sludge handling properties has not been investigated. A study of treatment sludges sampled from various water treatment plants has shown that substantial differences can be related to the treatment process and raw water composition. This study suggests that sludge densities, excess alkalinity, long-term compaction properties, metal leachability, crystallinity and cost efficiency can be affected by the neutralisation process and specific process parameters. The study also showed that the sludge density and dewatering ability is not positively correlated with particle size as previously suggested in numerous studies. The treatment process comparisons include sludge samples from basic lime treatment, the conventional High Density Sludge (HDS) Process, and the Geco HDS Process. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Sudbury |
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
Mining and the Environment II |
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
2002-060865; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 10; illus. incl. 6 tables; GeoRef; English |
Approved |
no |
|
|
Call Number |
CBU @ c.wolke @ 16574 |
Serial |
473 |
|
Permanent link to this record |