S3S removes spoils from your bentonite or polymer drilling fluid, allowing continuous reuse throughout your operation. When required, we dewater the fluid on site, producing dry, stackable solids for disposal and clarified water for reuse or sanitary sewer discharge. This reduces reliance on vac trucks and significantly lowers the volume of waste hauled off site.
Slurry drilling and jet grouting generate costly liquid waste. S3S processes it on site to recover reusable fluid and produce dry, stackable solids, cutting haul-off volumes and disposal costs.
Diaphragm wall excavation relies on bentonite slurry to support the trench, but accumulating sand can compromise slurry quality. The S3S BE-300 slurry treatment plant screens and desands the fluid, removing particles down to 30 microns to support continuous reuse and help maintain the required sand content before concrete placement.
Bored and secant piles installed under slurry require effective fluid management to maintain drilling fluid quality and control waste volumes. S3S removes drilled solids so the slurry can be reused, then dewaters spent fluid into clean effluent and stackable solids. CFA and driven piles typically do not use drilling slurry and generally do not require this treatment.
Jet grouting generates a backflow of soil, grout, and water that begins to set if left untreated. S3S screens out sand and gravel, then uses an integrated tank, centrifuge, and flocculant system to separate the remaining slurry into effluent and dry, stackable solids, reducing reliance on holding pits and vacuum trucks.
On the Eglinton Crosstown project in Midtown Toronto, this approach enabled water reuse and eliminated the need for vacuum trucks.
For two-phase CSM, S3S can desand returning soil-bentonite slurry for reuse at the rig and dewater surplus spoil to reduce liquid waste hauling. We assess your process, ground conditions, and spoil requirements to determine the right equipment for your operation.
Drilled shafts excavated under polymer or bentonite slurry require controlled fluid quality before concrete placement. On the Gordie Howe International Bridge, S3S used a BOS tank system and two large-bowl centrifuges to remove clay, sand, and silt from polymer slurry daily. A dedicated technician managed fluid quality and polymer mixing, enabling reuse across successive shafts. Separated solids passed the paint filter test and were accepted at a clean landfill.
We assess your construction method, slurry characteristics, site constraints, and performance targets, then configure a separation system to maintain fluid quality, maximize reuse, and reduce disposal costs.
We define the scope around your construction method, fluid properties, anticipated volumes, site constraints, and performance targets. Where needed, our lab tests your material to establish separation requirements, so equipment, staffing, and operating plans are grounded in your project’s actual demands.
S3S turns your project requirements into an integrated separation system, designing the site layout and deploying the right combination of tanks, desanding equipment, and centrifuges to meet your throughput and treatment targets.
Your project specification sets the limit. FHWA guidance identifies typical maximum sand contents of 4% for bentonite slurry and 1% for polymer slurry, but some DOT and project specifications require lower levels. S3S configures the treatment system around your required limits.
The paint filter test checks for free liquid draining from a sample over 5 minutes and helps determine landfill acceptance. On the Gordie Howe Bridge project, S3S’s processed solids passed the test and were accepted at a clean landfill. Dewatering results vary with material characteristics.
Yes. Many of our subway-related projects (such as the Eglinton Crosstown expansion in Midtown Toronto) are located in congested urban centres with limited space for spoils pits.
We can partner with you in numerous ways. Most jobs run with S3S technicians. If your crew wants to run the equipment, we can train them first.
We tailor separation systems to your method, slurry, site, and targets, maximizing reuse and reducing disposal costs.
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