Dredging & Dewatering
| Northern Western Australia |
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CRS Industrial Water Treatment Systems P/L recently provided it’s Geotube® sludge dewatering technology for containment and dewatering of 25,000m³ of sewage sludge.
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The project was initially hampered by a series of cyclones which ensured that the earthworks involved in the creation of bunds and pump sumps was a laborious and lengthy process. Once the weather settled and the infrastructure was finished, pumping of the first of 16 Geotube® dewatering containers began.
Using an unique continuous loop style unmanned dredge, pumping of the 5% solids sewage sludge was undertaken for 12 hours / day over the ensuing 8 weeks. Polymer, dosed at ~ 100ppm, was added to the sludge in-line, prior to containment and dewatering in the Geotube® dewatering containers .The solids concentration of the sludge was increased from 5% to 25% over the initial 60-day period.