Innovative dewatering technology for power stations
This is based on an actual case study employing Flowmax dewatering techniques at Huntly Power Station. The application was mixed fly-ash, abrasive clinker and unburnt coal wash-down from ash boxes of the power station’s boilers.
The sludge was being pumped 5km to drying ponds in concrete-lined pipes, with diggers finally removing dried solids and dumping them on a site owned by the client. Slurry was fed to the Flowmax at around 380m3/h (max 480) and at a solids concentration of between 6-18%.
The key performance indicator was the dryness of the solids, and the Flowmax produced an average of 74% solids concentration, with a max of 80%, with no use of polymer. Filtrate was slightly cloudy but clean enough to reuse as process water.
We were dealing with run-off from a coal stockpile at the power station with very fine solids (<10 micron). Some polymer was used and the solids caked really well on the belt. A reasonably clear filtrate was achieved, which is an excellent result. A solids concentration of over 30-45% was achieved indicating Flowmax’s industry leading dewatering techniques.
This trial got produced an exciting result since it demonstrated a level of dryness and throughput that had not been achieved before. This is due to the innovative dewatering techniques developed by AquaClear with the Flowmax.
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