Central NSW Sewage Treatment Plant -

Mixing & Dewatering

Projects > Municipal > Central NSW STP - Mixing & Dewatering

April, 2020

Situation:

Dredging Solutions were engaged to undertake a maintenance project on the sludge lagoons at this Sewage Treatment Plant (STP). The client requested that sludge sediment be dewatered and transported to the neighbouring storage facility. During the project, the pond was required to remain online

Our Approach:

Dredging Solutions removed material from the pond with our proprietary pontoon mounted mixer pump. The sludge was then fed directly to the Vitone V9 centrifuge for dewatering to a spadable level (~16% total solids w/w) and then deposited directly into 12 MT Sterling tipper trucks. 

Result:

The lagoon maintencance was successfully undertaken, returning a significant amount of capacity and causing  no interruption to daily operations. Once stacked in the tipper trucks, each load of dewatered sludge cake was confirmed to have a solids content of greater than 16% w/w, at which stage it was taken to the neighbouring storage facility for placement.

Dredging Solutions averaged production figures of 720m3 per day of feed sludge at ~2% solids w/w throughout the duration of the project.