Fly Ash Settlement Pond Dredging – QLD
A secondary fly ash pond required ongoing sediment management due to overflow from upstream thickening processes, with fine ash impacting settling performance and storage capacity.
Project Overview
Location: Queensland
Industry: Energy
Asset: Settlement Pond
Accumulation of fine fly ash within the settlement pond was reducing available storage capacity and impacting settling performance.
Scope
- Ongoing removal of overflow fly ash from secondary pond
- Management of fine, non-compacted ash with high water coverage
- Operation within active industrial environment
- Water level controlled to optimise dredging performance
- Slurry transfer to adjacent discharge point
- Controlled dredging approach suited to pond configuration
Outcome
- Maintained continuous sediment management within the pond
- Restored and sustained effective storage capacity
- Improved settling performance and water reuse conditions
- Minimized re-suspension of fine ash during removal
- Efficient extraction of non-compacted material using jetting and suction
Related Services
Process Pond and Dam Dredging
Sediment, Sludge & Slurry Removal
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