PFAS Dewatering for Civil Construction and Tunnelling, Townsville QLD

Sector: PFAS
Location: Wulguru, Townsville, QLD

Newlands Civil Construction: 9,700 L/h, 23 ML over 3 months, sum of PFAS 13.1 to below 0.01 ug/L, six skids commissioned in one day.

Client: Newlands Civil Construction, excavation and tunnelling project at Wulguru, Townsville.

Duty: 9,700 L/h (168 L/min), 242,000 L/day, 24-hour operation, 23 ML treated over 3 months on skid hire with no space to batch and hold-test before release.

Plant: six skids (12.65 m x 1.85 m) connected by flexible hose; skid 1 pump, monitoring and backwashable regenerable media; skids 2 and 3 MyCelx filtration for lower PFAS, metals, hydrocarbons and organics; skids 4 to 6 Bulk Performer polishing in series. Setup 4 hours, commissioning 4 hours, one 1.5 kW pump, no chemicals.

Results: PFOS 2.39 to below 0.01 ug/L, PFHxS 7.10 to below 0.01 ug/L, PFOA 0.18 to below 0.01 ug/L, sum of PFAS 13.1 to below 0.01 ug/L, TSS 35 to 50 mg/L to below 5 mg/L; 99% species protection achieved and confirmed by weekly testing for the whole hire.

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