High-rate coagulation, flocculation and inclined-plate clarification for potable water — achieving sub-1 NTU turbidity at high surface loading in a fraction of the footprint of conventional sedimentation basins, enabling in-building plant upgrades.
Inclined-plate settling delivering a large effective area in a compact footprint.
The charge-neutralisation and floc-formation chemistry ahead of clarification.
Source-water destratification and aeration for raw drinking-water reservoirs.
Treating a borehole or groundwater supply? See our full approach — aeration and catalytic multimedia filtration for iron and manganese, ultrafiltration for SDI and RO pre-treatment, and disinfection for potable supply — with example arrangements by application.
Borehole TreatmentLow-solids surface water demands high area efficiency and tight turbidity control
Coagulation–flocculation–lamella clarification reliably achieves < 1 NTU clarified turbidity ahead of filtration and disinfection, both a regulatory requirement and the key to effective downstream pathogen control.
By stacking inclined plates to multiply the projected settling area, lamella clarifiers replace conventional horizontal sedimentation basins with an 80–90% footprint reduction — enabling capacity upgrades within existing treatment buildings.
For low-solids drinking water, plate spacing of 50–60 mm maximises the area per unit volume while keeping blinding risk low, supporting surface loading rates of 6–10 m³/m²·h.
Particle capture in an ideal clarifier depends on the surface overflow rate q = Q/A, where A is the projected settling area — not on tank depth. A lamella pack of N plates inclined at angle θ contributes an effective area Aeff = N · w · L · cosθ per unit plan area, so stacking plates raises A several-fold within a fixed footprint and drops the effective q below each particle's settling velocity. For drinking water this allows q of 6–10 m³/m²·h at 50–60 mm spacing and 55–60° while still capturing the light, coagulated floc that low-turbidity surface water produces.
Each stage tuned to deliver filter-ready, low-turbidity water
Rapid mixing of a metal coagulant (alum, ferric or PACl) at the charge-neutralising dose and optimum pH destabilises colloidal turbidity and natural organic matter.
Tapered, gentle mixing grows strong, settleable floc without shearing it, sized to the lamella pack's capture velocity.
Inclined plates settle the floc to a sub-1 NTU clarified water while sludge slides to the hopper for withdrawal.
Rapid-gravity or membrane filtration polishes the clarified water, followed by disinfection to deliver compliant potable water.
Reynolds & Bauhm designs coagulation, flocculation and lamella clarification packages that hit sub-1 NTU within your existing footprint. Size your system with our lamella design calculations or speak to our engineers.
Our expertise spans multiple industries with sector-specific water treatment solutions.