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Clean-up complete at Queensland mine (23/05/2001)

... prepared and a clay core constructed on the downstream wall adjacent to the tailings dam.Underneath the liner, two drainage pipes 450mm wide were placed to collect any solutions flowing under the liner in order to channel the solution towards ...

Simple and efficient sludge thickening (22/05/2001)

... simple concept of flocculating a sludge and then straining the water off by gravity.The Sernagiotto/Supaflo gravity drainage tables are finding many applications in the thickening of biosolids.Outokumpu technology's manager, Ian Bane, says ...

Remediation of orphan mines tackled (15/05/2001)

... tunnels and exploration excavations. Each of these was catalogued and evaluated with regard to safety issues, acid mine drainage, water pollution, erosion issues, loss of vegetation, heritage values and visual intrusion.Remedial measures were ...

Longwall mine to get $106m investment (11/05/2001)

... 2000, improved development rates will ensure the timeframe is met.Scheduling of the expansion is well advanced. Gas drainage operations will begin in the June quarter this year and work will commence in the fourth quarter to refurbish and ...

BHP foresight diverts deluge (2/05/2001)

... four times the normal average, particularly in relation to the appropriate identification and management of acid rock drainage (ARD) discharges.From December 1999 to March 2000, Mt Whaleback received in excess of 1,200mm of rain, compared with ...

A solution to acid mine drainage (2/05/2001)

... Dr Aro Arakel, Geo-Enviro (Aust) Pty Ltd is about to put a portable unit on the road for trials in areas like acid mine drainage neutralisation.The SALT-PROC technology, which has already been trailed in an area of salinity at Kerang in ...

Mats with true grip (11/04/2001)

... gains in worker anti-fatigue levels do not come at the expense of safety—particularly in very wet areas where adequate drainage has been overlooked by designers of premises.Moulded from rubber to hold shoe and boot grit, and safely drain high ...

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