http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.12Change: 0.06
R/$ = 10.51Change: 0.02
Au 1308.30 $/ozChange: 9.42
Pt 1479.50 $/ozChange: 6.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Jul 26, 2012

Decanting acid mine water could be an opportunity

Back
Johannesburg|AMD|Energy|Resources|Water|North-West University|Energy|Mining|Environmental|Frank Winde|Water|Mine Water
|Resources|Water||Energy|Mining|Environmental|Water|Mine Water
johannesburg|amd|energy-company|resources|water-company|north-west-university-facility|energy|mining|environmental|frank-winde|water|mine-water
© Reuse this



JOHANNESBURG (miningweekly.com) – Decanting acid mine drainage should be seen as an opportunity in the water-stressed Gauteng region, Professor Frank Winde from the North-West University said on Thursday.

Speaking at the yearly Sustainability Week in Johannesburg, Winde, who headed a research study into acid mine drainage (AMD) in 2011, said a range of opportunities had to be explored for the possible use of decanting mine water.

“Untreated acidic mine water has been used in the past by municipal sewage works in the Central Rand to aid nitrate digestion. Given the number of sewage works in Johannesburg and the volume of sewage to be treated, this alone could perhaps accommodate most, if not all, of the decanting water, resulting in no treatment costs while saving clean water otherwise used for this purpose.

“This is but one example from a range of other possibilities that should be explored,” he said.

Winde also reiterated that the mining industry and government had more time to find a solution for AMD in the Central basin than what has been reported over the past few years.

Citing his 2011 report, which downplayed the risk of AMD flooding in Johannesburg’s central business district, he said that there was a significantly slower rise of the underground mine-water table, a significantly lower volume of decant and a far less severe impact of untreated decant water on the quality of receiving streams than previously reported.

The research study called for a sustainable, low-cost, low-energy solution to the problem, rather than the proposed high-cost, high-energy, pump-and-treatment-option likely to be subsidised by society.

Mining companies argue that the responsibility of dealing with AMD, which is viewed as a mining legacy issue and an ownerless liability, should not be laid solely at the feet of mining companies.

Chamber of Mines head of environment Stephina Mudau said that ownerless and derelict mine sites were the sole responsibility of the State, which should manage the environmental impacts caused during historic mining operations and the effects thereof.

She pointed out that legislation, such as the Mineral and Petroleum Resources Development Act along with the National Environmental Management Act kept operational mines from repeating the mistakes from the past.

“There is also opportunity for partnership and cooperation in dealing with the legacies of acid mine drainage,” Mudau said.

AMD has already been decanting in the Western basin since 2002.
 

Edited by: Mariaan Webb
© Reuse this Comment Guidelines
 
 
 
 
 
 
 
 
 
Latest News
Updated 5 hours ago The head of economics and trade at the Delegation of the European Union (EU) in Pretoria has acknowledged South Africa’s trade negotiators won important concessions in the long-running Economic Partnership Agreement (EPA) trade talks. But he says it was South...
Responding in writing to a recent Parliamentary question by the Democratic Alliance, Transport Minister Dipuo Peters has provided an update for each of the country’s 13 bus-rapid transport (BRT) systems, noting that each network is at a different stage of...
The South African Real Estate Investment Trust (SA Reit) Association has called on the Competition Commission to intervene in undesirable exclusivity clauses in retail leases that were allowing retailers to stifle market share. The association’s members, which...
More
 
 
Recent Research Reports
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
Real Economy Insight: Steel 2014 (PDF Report)
This four-page brief covers key developments in the steel industry over the past 12 months. It provides an overview of the global and South African steel and stainless steel markets, South Africa’s major steel producers and events that have shaped these markets.
 
 
 
 
 
This Week's Magazine
Multinational semiconductor chipmaker corporation Intel announced its national campaign to further acquire partners to drive its She Will Connect programme, an initiative that aims to expand digital literacy skills to young women in developing countries, further into...
South Africa's MeerKAT radio telescope array programme should get back on schedule within a few months. This assurance has been given by SKA South Africa (SKA SA) associate director: science and technology Prof Justin Jonas. Early last month, Science and Technology...
The Passenger Rail Agency of South Africa’s (PRASA’s) Metrorail service will remain a subsidised service following its current multibillion-rand rolling stock, station, depot and signalling upgrade programme. PRASA group CEO Lucky Montana has allayed fears that...
GARYN RAPSON Contaminated Land Provisions in the National Environmental Management: Waste Act No 59 of 2008 will open the door for court battles to determine who will be held liable for the remediation
The uncertainties around the remediation of affected areas as addressed in the Contaminated Land Provisions in the National Environmental Management: Waste Act No 59 of 2008 will possibly spark litigation and disputes between landowners and businesses, contractors...
South Africa is currently the largest component of the African Development Bank’s (AfDB’s) active portfolio in Southern Africa, comprising 62.5% of the bank’s $7.9-billion exposure to the 12-country region – the second largest beneficiary is Mauritius, which...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks