WATER MANAGEMENT
month in a mine using 1 million cubic metres in the same time period, robust yet flexible engineered pipework solutions are essential in minimising lost and wasted water. For mine water management systems, polyethylene (PE) is the ideal choice for pipework. PE pipes offer inherent strength combined with the reduced weight and flexibility needed for transport to and installation in remote mining environments – unlike traditional metal or concrete pipes which are cumbersome to move.
While the chemicals used in
water treatment processes can have a corrosive effect on many traditional pipe materials, modern PE piping offers the resistance required to cope with even the most aggressive acids, bases and salts. Suitable for use in tailings pipelines, mineral extraction and treatment applications, it can also be used to transport treated and potable water as it is resistant to both galvanic corrosion and bacterium sediment build-up – unlike steel or concrete pipes which can be badly damaged.
Its inherent strength offers protection against abrasion from metals or mineral particles, including rock fragments, while its exterior surfaces are impact- resistant and suitable for underground installation if necessary. PE withstands UV degradation temperatures from -40˚C to +60˚C. Te interior surfaces of PE pipes
resist bacterial growth, an attribute which is essential for the supply of drinking water to remote mines where no mains supply is available. Concrete and metal pipes, meanwhile, can be badly damaged by both bacterium sediment build-up and galvanic corrosion, to which PE is resistant. l
INDEX OF ADVERTISERS ABB
CarlStahl CDE Mining Corzan HP DRA Operations Grindex Hilliard Motion Control Division KATI
58
www.engineerlive.com
50/51 IFC
10/11 49 25 33
38/39 4/5
Only around 35% of water discharged to a tailings dam is reused in the process plant.
Philip Wood is with Polypipe, Doncaster, UK.
www.polypipe.com/mining
Magotteaux Monarch Vulcanising Systems Netzsch Pumpen & Systeme Normet OringOne RUD System/Erlau SpinTek Filtration
OBC 21
30/31 37 IBC 45
54/55
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