2 nd International Conference Graz October, 10 th 2012 Effects on Groundwater by Mining Adaptation...

2nd International Conference GrazOctober, 10th 2012

Effects on Groundwater by MiningAdaptation Topic 1

PP8 – LfULG (speaker: Corina Niemand)PP7 – IRRIPP2 – RWM(PP6 – IMGW)

LfULG - Areas of Work

Transfer of knowledge and technology

Support of policy

Future topics

Education

Financial support

Legal execution

Environmentalmonitoring

Research

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

Poland (turow, Gwra)

Greece

After Mining

Radke, Peter (LMBV)

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

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

Before mining mining

After miningflooded by groundwater and surface water

filled

Groundwater – Quantity

Acid mine drainage

Mine water treatment plants

Before mining mining

What can be done? Active Mining

1. Quantity2. Quality

Oxidative mine water treatment

Characteristics of

the good practicesWhat can be done?

Characteristics of

the good practicesExample: Mining Area Schleenhain, Germany

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

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?

Inlake method to neutralize the lake water

Characteristics of

the good practicesWhat can be done?

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

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?

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?

• „…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