| Records |
| Author |
Pettit, C.M.; Scharer, J.M.; Chambers, D.B.; Halbert, B.E.; Kirkaldy, J.L.; Bolduc, L. |
| Title |
Neutral mine drainage |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; mining and the environment II; Conference proceedings |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage drainage geochemistry mining mining geology models neutral mine drainage pH pollution remediation technology water management water quality water resources 22, Environmental geology |
| Abstract |
Acid mine drainage is recognized as a serious environmental issue at mine sites world wide. While sulphate and metal concentrations in acidic drainage can reach exceptionally high levels, these can also be elevated and of concern in neutral drainage from waste rock and tailings. “Neutral mine drainage” (NMD) has not yet received as widespread attention as acid mine drainage (AMD). The oxidation of sulphide minerals and the production of either acidic or neutral contaminated drainage is affected by many factors. This paper examines the specific factors that result in the production of “neutral mine drainage” from mine wastes. Several case studies are presented which involve predictive geochemical modelling to illustrate the possible time frame and magnitude of contaminated neutral drainage. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
Sudbury Environmental |
Place of Publication |
Sudbury |
Editor |
Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G.J. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
ISSN  |
|
ISBN |
0886670470 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Neutral mine drainage; GeoRef; English; 2000-043769; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 12; illus. incl. 3 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16589 |
Serial |
270 |
| Permanent link to this record |
| |
|
| |
| Author |
Parker, G.; Noller, B.; Waite, T.D. |
| Title |
Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; Conference proceedings |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage Australasia Australia buffers carbonate ion geochemistry Northern Territory Australia Pine Creek Geosyncline pollution pyrite sulfides surface water tropical environment water quality 22, Environmental geology |
| Abstract |
Surface waters in the Pine Creek Geosyncline (located in Australia's “Top End”, defined as the area of Australia north of 15 degrees S) are characterized by their low carbonate buffering capacity. These waters are buffered by silicate weathering and hence are slightly acidic, ranging in pH from 4.0 to 6.0. The Pine Creek Geosyncline contains most of the Top Ends' economic mineral deposits and characteristically shows no correlation between carbonate minerals and sulfidic orebodies hosting gold deposits (unlike uranium deposits). Thus many gold mines do not have ready access to carbonate minerals for buffering acid mine drainage (AMD). It is possible that locally available fast-weathering silicate minerals may be used to buffer AMD seeps. The buffering intensity of silicate minerals exceeds that of carbonate minerals, but their slow dissolution kinetics has ensured that these materials have received little attention in treating AMD. In addition, carbonate mineral dissolution is retarded when contacted with intense AMD solutions due to the formation of surface coatings of iron minerals. The lower pH range of silicate mineral dissolution may prevent the formation of such coatings. The Pine Creek Geosyncline consists of a complex geochemistry, and a number of fast-weathering silicate minerals have been noted in various areas. The difficulty in assessing such minerals for use in buffering AMD is the lack of kinetic data available under conditions prevalent AMD (i.e., low pH solutions saturated with aluminium and silica). This study sets out to evaluate the applicability of using such minerals to treat AMD surface seeps. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
Goldsack, D.E.; Belzile, N.; Yearwood, P.; Hall, G.J. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
0886670470 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia; GeoRef; English; 2000-048644; Sudbury '99; Mining and the environment II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 36; illus. incl. 2 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16594 |
Serial |
273 |
| Permanent link to this record |
| |
|
| |
| Author |
Mitchell, P.; Wheaton, A. |
| Title |
From environmental burden to natural resource; new reagents for cost-effective treatment of, and metal recovery from, acid rock drainage |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; Conference proceedings |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage Bunker Hill Mine cost decontamination Idaho metal ores mines mitigation natural resources pollution reagents recovery Shoshone County Idaho sludge United States zinc ores 22 Environmental geology 27A Economic geology, geology of ore deposits |
| Abstract |
Acid rock drainage remains the greatest environmental issue faced by the mining sector and as the new millennium approaches, low capital/operating cost treatments remain elusive. Therefore as part of an ongoing process to develop a leading edge, innovative and cost-effective approach, pilot trials were conducted by KEECO in collaboration with the New Bunker Hill Mining Company on a substantial and problematic metal-contaminated acid flow, emanating from underground workings at the Bunker Hill Mine, Idaho. The aims of the work were fourfold. First to assess the capacity of KEECO's unique Silica Micro Encapsulation (SME) reagents and associated dosing systems to cost-effectively decontaminate the acid flow to stringent standards set by the U.S. Environmental Protection Agency (USEPA), where alternative and standard technologies had failed. Second, to demonstrate that treatment using a compact system suitable for underground installation. Third, to demonstrate that the treatment sludge had enhanced chemical stability in absolute terms and relative to standard approaches. Fourth, to examine the potential for resource recovery via sequential precipitation. Although the focus to date has been the development of a cost-effective treatment technology, the latter aim was considered essential in light of the growing pressure on all industrial sectors to develop tools for environmentally sustainable economic growth and the growing demands of stakeholders for improved resource usage and recycling. Two phases of work were undertaken: a laboratory-based scoping exercise followed by installation within the mine workings of a compact reagent delivery/shear mixing unit capable of treating the full flow of 31 L s (super -1) . At a dose rate of 2.0 g L (super -1) (equivalent to a final treated water pH range of 7-9), the SME reagent KB-1 reduced metal concentrations to levels approaching the U.S. Drinking Water Standards, which no other treatment piloted at the site had achieved. Based on the USEPA's Toxicity Characteristic Leaching Procedure, the sludge arising from the treatment was classified as non-hazardous. Operating costs compared favourably with those of lime use, while estimated capital costs were considerably lower due to the compact nature of the reagent delivery system and the rapid settling characteristics of the treatment sediment. Resource recovery was attempted using a two-stage selective precipitation approach. The first stage involved pH adjustment to 5.5 (by addition of 1.5 g L (super -1) of KB-1) to produce a sludge enriched in aluminium, iron and manganese, with lesser amounts of arsenic, nickel, lead and zinc. Further KB-1 addition to a total of 2.1 g L (super -1) generated sludge enriched in zinc (33% by dry weight), demonstrating that resource recovery is theoretically feasible. Further work on downstream processing is required, although it is considered that the most likely route for zinc metal recovery will be high temperature/pressure due to the chemically inert nature of the zinc-rich sediment. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
Goldsack, D.E.; Belzile, N.; Yearwood, P.; Hall, G.J. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
0886670470 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
From environmental burden to natural resource; new reagents for cost-effective treatment of, and metal recovery from, acid rock drainage; GeoRef; English; 2000-048642; Sudbury '99; Mining and the environment II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 3; illus. incl. 5 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16593 |
Serial |
296 |
| Permanent link to this record |
| |
|
| |
| Author |
Berthelot, D.; Haggis, M. |
| Title |
Application of remote monitoring and data management systems to environmental management of tailings facilities |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; conference proceedings |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage Algoma District Ontario applications Canada cost data management data processing Eastern Canada efficiency effluents Elliot Lake Ontario environmental analysis environmental management information management land management mining monitoring Ontario planning pollution remediation solid waste Stanleigh Mine tailings technology waste disposal 22, Environmental geology |
| Abstract |
The mining industry has made tremendous strides in the last 20 years in the prevention and control of acid mine drainage. However, there remain a number of circumstances where the long-term operation, care and maintenance of tailings management facilities will be required. The application of progressive environmental technologies and management systems is key to cost control and environmental liability management at these sites. Mine Waste Management Inc. currently operates Rio Algom Limited's five effluent treatment plants and seven waste management areas in the Elliot Lake, Ontario region using a Remote Plant Monitoring and Control Network (RPMCN). This system, based on Intellutions's “Fix 32” technology, enables the monitoring and control of these plants from a centralized location thus reducing labour costs while providing 24-hour surveillance. Scheduling, auditing and reporting of plant operating and environmental monitoring programs are integrated and controlled using the Envista (super TM) environmental information management system. Proper application of these technologies and management systems facilitates delivery of cost-effective environmental monitoring, and care and maintenance programs at these sites and provides tools to demonstrate compliance with all environmental performance criteria. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
0886670470 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Application of remote monitoring and data management systems to environmental management of tailings facilities; GeoRef; English; 2002-060870; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 2; illus. incl. sketch map |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16575 |
Serial |
449 |
| Permanent link to this record |
| |
|
| |
| Author |
Berg, G.J.; Arthur, B. |
| Title |
Proposed mine water treatment in Wisconsin |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; mining and the environment II; Conference proceedings |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
metals mines pollutants pollution remediation tailings United States waste water water water management water quality water resources water treatment Wisconsin 22, Environmental geology |
| Abstract |
Water quality standards are driving wastewater effluent limits to ultra-low levels in the nanogram/L range. Standards are proposed that require discharges to match background water quality. The new ultra-low level standards require cautious sampling techniques, super clean laboratory methods and more advanced treatment technologies. This paper follows a case history through water quality standards for ultra-low metals, laboratory selection, and the design of a wastewater treatment system that can meet the water quality standards which are required to permit a proposed copper and zinc mine in Northern Wisconsin. A high degree of care must be taken when sampling for ultra-low level metals. Both surface water and treated effluent samples present new challenges. Sampling methods used must assure that there are no unwanted contaminants being introduced to the samples. The selection of a laboratory is as critical as the construction of a state of the art wastewater treatment system. Treatment methods such as lime and sulfide precipitation have had a high degree of success, but they do have limitations. Given today's ultra-low standards, it is necessary to assess the ability of reverse osmosis, deionization, and evaporation to provide the high level of treatment required. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
Sudbury Environmental |
Place of Publication |
Sudbury |
Editor |
Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G.J. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
0886670470 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Proposed mine water treatment in Wisconsin; GeoRef; English; 2000-043747; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement II, Sudbury, ON, Canada, Sept. 13-17, 1999 illus. incl. 5 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16588 |
Serial |
451 |
| Permanent link to this record |
