2 nd international conference graz october, 10 th 2012 effects on groundwater by mining adaptation...
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2nd International Conference GrazOctober, 10th 2012
Effects on Groundwater by MiningAdaptation Topic 1
PP8 – LfULG (speaker: Corina Niemand)PP7 – IRRIPP2 – RWM(PP6 – IMGW)
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LfULG - Areas of Work
Transfer of knowledge and technology
Support of policy
Future topics
Education
Financial support
Legal execution
Environmentalmonitoring
Research
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Turow, Poland Ptolemaida, Greece
Jänschwalde, Germany
http://img.fotocommunity.com/photos/12070483.jpg
ActiveAyrshire, Scotland
fotocommunity.de :Hardy Ulitzka
Where is know how existing ?
Where will be the
benefit?
mining
PP Mining Areas - Active Mining
www.kier.co.uk
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Poland (turow, Gwra)
Greece
After Mining
Radke, Peter (LMBV)
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http://moorbraun.twoday.net/stories/5055934
But:Way is long and difficult!
Quantity Quality
In which respect is it relevant to the donor
partner(s)?
Problems
(Enormous) groundwater deficit
• Lusatian mining area 1990: around 13 billion m³ GW deficit groundwater lowering funnels about 2100 km2
poor water quality of ground and surface waters•low pH values – acid mine drainage•high sulfate concentrations•high concentrations of dissolved iron•containing a high level of suspended solids• and others
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Visiting the mining area Schleenhain Germany (PP7, PP8)
Questionnaire for IRRI Answer to Questionnaire Involving/ using information from other projects
Visiting mine Turow/Poland and MWTP all PP Visit lake Berzdorf/Germany (flooded) all PP Draft structure adaptation report Visiting mining area Ptolemaida/ Greece Interest of PP2 on this adaptation topic Revised draft adaptation report Questionnaire for PP2-->
Multiple choice table of treatment methods
Draft adaptation report
Adaptation Process:
What is the role of the
receiving partner(s) in the
adaption process? Where were obstacles in
the transfer of the selected
methodology ?
More time
Table
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Before mining mining
After miningflooded by groundwater and surface water
filled
Groundwater – Quantity
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Acid mine drainage
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Mine water treatment plants
Before mining mining
What can be done? Active Mining
1. Quantity2. Quality
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Oxidative mine water treatment
Characteristics of
the good practicesWhat can be done?
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Characteristics of
the good practicesExample: Mining Area Schleenhain, Germany
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1. Quantity
flooded by groundwater and surface water
filled
http://www.kuehn-hjp.de/Meuro/e3-44-10b.jpg http://dabonline.de/wp-content/uploads/lmbv_1042-201x300.jpg
What can be done? After mining
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On siteIn lake
Seewasser
Mine water treatment plants
Microbial ammonium reduction
Electrochemical reduction of sulfate
Stationary entry above and below the water surface
Mobile entry above and below the water surface
Improve sustainability by buffering with CO2 and power plant ash
runoff water
In Situ
dump and groundwater
Microbial sulfate reduction by DSI
Sulfate reduction with fixed-bed reactor
Reduction of groundwater recharge
seawater
2. Quality
What can be done?
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Inlake method to neutralize the lake water
Characteristics of
the good practicesWhat can be done?
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Inlake - Technologies
reference LMBV
Use of remediation ships: alkaline buffering by entry of HCO3 generated on board in the surface water body (Inlake liming)
Characteristics of
the good practices
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Basic research
Applied research
(laboratory / pilot plant test)
Pilot test at the site
Use in rehabilitation
passive / active techniques
geotechnical, chemical, physical, biological, microbial processes
What exact steps were
needed for a potentially
successful transfer?
What should be done?
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1 Heterotrophic Sulphate-Reduction in the aquifer
2 Autotrophic Sulphate-Reduction
3 Membrane process (Nanofiltration)
4 Inlake Reactors for reductive sulphate separation
6 Conditioning of the lake system
7 Reaction carpets for inflow treatment
9 Membrane electrolysis facility
10 Iron sulphate precipitation
… … to be amended
supported by project VODAMIN
Groundwater
Surface water
wellInfiltration wellSubstrat
e
Substrate concentratetd groundwater flow
moraine clay
Rehabilitation technologies – state of research
What should be done?
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• „…Filling old mines with water must be…“ SHARP-Song Vers 3
• Enormous water deficit• need to know the water balance in the region
• Project of PP7 and PP8 2012-2014
The end of the project SHARP is not the end of cooperation
Transboundary catchment area Lusatian Neisse