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Water Purification and Treatment

Stainless pump installed in lime slaker

20th August 2021 A stainless steel Grundfos booster pump is at work at water reclamation and desalination technology company Nafasi Water’s recently commissioned lime-slaking facility in the Mpumalanga coal mining region. 

Water management progress for KZN mine

By: Claire O'Reilly     20th August 2021 The conservation, protection and management of water have become top priorities for many mining companies, including the only South African anthracite-producing mine, Zululand Anthracite Colliery (ZAC), a subsidiary of mining investment company Menar. The primary objective of ZAC’s sustainable... 

ZAC, Menar, pollution control dam in Emakhalathini, KwaZulu-Natal mine
POLLUTION CONTROL DAM IN EMAKHALATHINI All water management measures implemented by ZAC protec freshwater resources against pollution, to provent contaminated water from being released from the Emakhalathini, KwaZulu-Natal mine.

Water stewardship gives mines the broader view

20th August 2021 With South Africa’s growing demand for water – and the impact of climate change on rainfall variability and water supply security – the need for a systematic approach to water stewardship in mining has never been greater.  

Sustainable management imperative for mining

20th August 2021 Effective and efficient water management is a key aspect of all mining operations and is often one of the single most important considerations for developing an environmentally safe and sustainable mining project, say consulting engineering firm Knight Piésold Southern Africa senior... 

Multiple approach plan to extend life cycle of mine water

By: Claire O'Reilly     20th August 2021 Environmental consulting firm Golder, a member of WSP in Africa, says a holistic approach to water management is essential to achieve resource sustainability. 

This is of a stock image of a mines pollution dam
EVERGREEN SOLUTIONS Golder's life-cycle approach helps with effective environmental planning to optimise and minimise water consumption

Water treatment technology available but costly

By: Darren Parker     21st August 2020 Although the technology to treat and purify mine water to acceptable standards already exists, the main challenge for the mining industry and society is affordability, says water and environmental consulting firm GCS regional director and senior hydrogeologist Pieter Labuschagne. Currently, the... 

AN EXPENSIVE ENDEAVOUR
Many factors involved in the treatment and purification of mine-impacted water make it a costly exercise
AN EXPENSIVE ENDEAVOUR Many factors involved in the treatment and purification of mine-impacted water make it a costly exercise

Industry welcomes new water management tool

By: Darren Parker     21st August 2020 The uptake of a tool to assist the mining sector in implementing the principles of water conservation and water demand management (WC/WDM), has been “overwhelmingly positive”, Minerals Council South Africa head of environment Stephinah Mudau tells Mining Weekly. The WC/WDM self-assessment... 

ACCURATE SELF-ASSESSMENT
The new tool assesses water requirements and the level of water reuse and recycling required, thereby reducing treatment costs
Photo by Creamer Media
ACCURATE SELF-ASSESSMENT The new tool assesses water requirements and the level of water reuse and recycling required, thereby reducing treatment costs

New sewage treatment plants planned

By: Darren Parker     21st August 2020 Following the successful commissioning of a sewage treatment plant for coal mining company Canyon Coal’s Khanye colliery, in Gauteng, in early 2019, plans are under way to build similar plants at the company’s planned De Wittekrans and Palmietkuilen collieries. In a statement issued by the... 

WASTE NOT The sewage treatment plant at Khanye colliery is designed to treat up to 30 000 ℓ/d of sewage water for discharge into an adjacent wetland system
WASTE NOT The sewage treatment plant at Khanye colliery is designed to treat up to 30 000 ℓ/d of sewage water for discharge into an adjacent wetland system

Company introduces paste thickener for efficient dewatering

23rd August 2019 Tailings dewatering and disposal is a challenge that Finnish-listed technology company Outotec has sought to address by introducing the Outotec 2nd Generation Paste Thickener, which is able to maximise underflow density regardless of challenging mineralogy and tailings feed rate variation. The... 

Metso drives new tailings management

23rd August 2019 Water conservation, efficient tailings management and responsible mine reclamation are becoming increasingly important for mines to ensure their licence to operate. Therefore global supplier of equipment Metso has introduced its comprehensive tailings management concept to enable and support... 

Veolia to treat, manage Obuasi water

23rd August 2019 French transnational Veolia has signed a new water treatment contract with gold mining company AngloGold Ashanti Limited’s Obuasi gold mine, in Ghana. AngloGold Ashanti Limited – a subsidiary of  South Africa-based gold miner AngloGold Ashanti, the world’s third largest gold producer – has... 

INCREASED PRODUCTIVITY
By optimising the process water treatment for the Obuasi gold mine, Veolia has an opportunity to improve the productivity of this crucial operation
INCREASED PRODUCTIVITY By optimising the process water treatment for the Obuasi gold mine, Veolia has an opportunity to improve the productivity of this crucial operation

Pilot water plants will monitor and treat quality of water

By: Khutso Maphatsoe     23rd August 2019 Environmental solutions company I-CAT is completing a 10 m3/h process water pilot plant for a client specialising in dense-media separation (DMS) and will trial the plant for the next three months. The data collected from the plant will be used to design a 170 m3/h process water plant, with... 

New pumps and valves to be used in mine water purification

By: Khutso Maphatsoe     23rd August 2019 As heavy-duty industrial valve manufacturing and services provider Flowrox continually develops and improves its product and service offering using state-of-the-art technology, the company has developed various new products for use in acid mine drainage and wastewater treatment in mining. These... 

Company’s Hydraspin separator to be used at mine’s workshop

By: Khutso Maphatsoe     23rd August 2019 Environmental engineering consultancy African Horizon Technologies has sold a Hydraspin oil-water separator to mining major Glencore’s Thorncliff mine in Steelpoort, Limpopo, to use in one of its workshops. African Horizon Technologies is waiting for the civil works to be completed before it can... 

Misconceptions around AMD remain a threat to the environment

By: Khutso Maphatsoe     23rd August 2019 Acid mine drainage (AMD) has become one of South Africa’s largest environmental threats, as AMD has caused considerable damage to the natural environment and communities living near mining areas, says engineering consultants WSP Africa’s hydrology, environment and energy senior associate Karen... 

Continuous ion exchange technology projects achieve milestones

By: Tasneem Bulbulia     31st August 2018 Minerals processing equipment supplier Multotec Process Equipment (Multotec) has secured its first two projects for the continuous ion exchange technology it offers, and is achieving notable progress in both, Multotec senior process engineer Carien Spagnuolo tells Mining Weekly. The technology is... 

PIONEER PROJECT  
Multotec installed and is commissioning an effluent treatment plant for the treatment of wastewater at an antimony roaster in Oman, in the Middle East
PIONEER PROJECT Multotec installed and is commissioning an effluent treatment plant for the treatment of wastewater at an antimony roaster in Oman, in the Middle East

Lithium mine water treatment plant designated

31st August 2018 Municipal and industrial water solutions provider Veolia Water Technologies has been selected to deliver the Greenbushes lithium mine water treatment plant in Western Australia; and while preliminary activities have already started, the construction of the Greenbushes lithium mine water treatment... 

New technologies to treat wastewater

31st August 2018 Scientific research and development organisation the Council for Scientific and Industrial Research (CSIR) has developed and patented two wastewater technologies. One of these technologies purifies mine wastewater to a standard that is suitable for domestic, agricultural and industrial use; while... 

INDUSTRY ISSUE 
Acid mine water is a by-product of the mining and mineral industry
Photo by Creamer Media
INDUSTRY ISSUE Acid mine water is a by-product of the mining and mineral industry

Mintek showcases developed water rehabilitation technologies

By: Erin Steenhoff-Snethlage     31st August 2018 South African research and development company, Mintek, showcased the Savmin, NICMembrane, biological sulphate reduction and MetRIX technologies on 14 to 16 March. They use different methods to deal with different types of mine water and rehabilitate water to different standards. At the Mintek... 

WATER WISE 
Mintek recently showcased its water rehabilitation technologies
WATER WISE Mintek recently showcased its water rehabilitation technologies
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