Customer: Rio Tinto Coal Australia
Location: 120km south west of Mackay, QLD
Specifications & Features:
Dowdens Pumping and Water Treatment was engaged by Rio Tinto to engineer and design an upgrade for their Hail Creek Mine's current Sewage Treatment Plant (STP). The existing system had became overloaded due to a large increase in the workforce.
In conjunction with both consultants and Rio Tinto engineers Dowdens Pumping and Water Treatment investigated many options to upgrade the STP, including distributing the treated waste water through an onsite irrigation system.
Rio Tinto's Hail Creek Mine supplies steel mills in Asia and Europe with up to eight million tonnes of hard coking coal per year.
The Dowdens Pumping and Water Treatment Project Department successfully completed the upgrade overcoming many technical challenges along the way.
Dowdens team of specialised engineers and CAD draftsmen were able to design the STP upgrade in great detail, with the aim of reducing as much "on site" work as possible - whilst also reducing risk. The results spoke for themselves with the site work going smoothly and all the equipment coming together without a hitch.
Rio Tinto's expectations were met with the project being delivered on time and on budget, with the upgrade now treating 255,000L of domestic sewage every day from the village and the administration complex.
Key Plant Features:
- Dual WILO FAC Submersible Pumps housed in a Aquatec AFPS Fibre Polymer Chamber with a 415v Control Panel
- Four 45,000L In Series Balance Tanks c/w 200mm & 160mm Electro-fusion Welded Fittings
- Two WILO Submersible Jet Aerator Pump Assemblies in Aeration Tank 2
- Emergency Bypass Control / Pipe System
- Specially fabricated SS316 "Stilling Baffle" within Aeration Tank 1
- Specially designed "Automatic Decanting System" on Balance Tank 4
Daily Treated Water Volume: 255,000L / day