High-efficiency inclined plate clarifiers for superior solids separation. Available in deployable, mobile, and containerised configurations from 5 to 500 m³/hr.
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Full mechanical, physico-chemical, biological and sludge equipment range.
Our Lamella Plate Clarifiers use inclined plate settling technology to achieve superior solids removal in a compact footprint. The parallel plate design increases the effective settling area, allowing for significantly higher flow rates than conventional clarifiers of the same size.
Designed for rapid deployment and minimal civil works, our clarifiers are ideal for temporary projects, remote locations, and applications requiring quick installation, commissioning and handover.
Up to 90% smaller footprint than conventional clarifiers
Operational within hours of delivery
Skid, trailer, or container mounted options
Gravity-driven with minimal power requirements
Flexible Configuration Options
Choose the deployment method that best suits your project requirements and site conditions.
Skid-mounted systems ready for rapid deployment to any site.
Trailer-mounted clarifiers for maximum mobility between sites.
Custom-designed clarifiers for specific project requirements.
Detailed engineering guides for Lamella Plate Clarifier design and optimisation.
Explore how plate width, length, spacing, and inclination angle influence settling performance, hydraulic capacity, and effluent quality in rectangular lamella configurations.
Read GuideUnderstand the hydraulics of conical lamella designs, cone angle effects on radial flow distribution, critical radius optimisation, and sludge compression advantages.
Read GuideStep-by-step engineering calculations covering Stokes' Law, Hazen velocity, surface loading rates, Reynolds number checks, and complete worked design examples.
Read GuideFrom Stokes’ Law to the Hazen Equivalence
A lamella clarifier multiplies effective settling area by stacking plates inclined at θ = 55–60° from horizontal. A particle only needs to settle the short perpendicular distance between two plates, then it slides down the plate surface under gravity and discharges into the sludge hopper.
For a discrete particle in the laminar regime (Re < 1): vs = g(ρp − ρw)dp2 / 18μ. For a 50 µm sand particle (ρp = 2,650 kg/m³) in 15 °C water this gives vs ≈ 2.2 mm/s; for a 100 µm chemically conditioned floc (ρ ≈ 1,030 kg/m³) it falls to ≈ 0.16 mm/s.
Particle capture requires vs ≥ SLR, where SLR = Q / Ap and Ap = N·w·L·cos θ is the projected horizontal area. Stacking N plates at 55° inclination yields up to 10–15× the projected area of an open tank of the same footprint, so SLR can be as aggressive as 0.8–2.5 m³/(m²·h) for coagulated flocs — an order of magnitude above conventional clarifiers (0.5–1.0 m/h).
To avoid floc shear and re-suspension the flow between plates must remain laminar: Re = (4·v·Rh) / ν < 500, where Rh is the hydraulic radius of the inter-plate channel. Typical plate spacing is 50–100 mm with inter-plate velocities of 4–8 mm/s, yielding Re = 150–350. Below this threshold, parabolic Poiseuille flow develops and settled solids slide downwards along the plate without entrainment.
The 55–60° angle is the engineering compromise between Boycott-effect area gain (which favours shallow plates) and gravity sludge slide (which requires inclination above the solid’s angle of repose, typically 45–55° for hydrated flocs). Below ~50° sludge accumulates on the plates; above ~65° the projected-area benefit collapses. Plate length is set so the residence time t = L·cos θ / vs > L / v allows even the smallest design particle to reach the underside.
Sizing in one line: Ap,required = Q / vs,design. Once Ap is known, the number of plates N follows from N = Ap / (w·L·cos θ). For Q = 100 m³/h, vs = 1.2 m/h and 2.5 m × 1.0 m plates at 55°: Ap = 83 m², N = 58 plates. See the design calculator for full worked example.
Manufactured from premium corrosion-resistant materials selected for your specific water chemistry. All weld seams are pickled and passivated to extend service life in aggressive industrial environments. Modular skid-mounted configurations simplify installation and future expansion.
Pre-piped and pre-wired on structural steel skids with lifting lugs and fork pockets.
SS316L, duplex, or rubber-lined construction selected based on wastewater chemistry.
Factory acceptance tested (FAT) before dispatch. Connect power and inlet/outlet to commence operation.
Siemens or Allen-Bradley PLC platforms with custom logic developed for your specific sequencing and interlock requirements.
4G/WiFi/Ethernet connectivity to our support centre for predictive diagnostics and remote troubleshooting.
Prioritised alarm hierarchy with SMS and email notifications to maintenance and operations personnel.
12-month rolling data storage with automated compliance report generation for regulatory submissions.
Reynolds & Bauhm provides lifetime technical support for all equipment. Our spare parts inventory covers critical wear components with next-day delivery across Europe. Planned maintenance contracts include quarterly inspections, predictive replacement of wearing parts, and annual performance audits to guarantee sustained efficiency.
Quarterly inspections and preventive replacement of seals, bearings, and wearing surfaces.
Critical components held in stock. Next-day dispatch to UK, Netherlands, Germany and Poland.
On-site commissioning and hands-on training for your operations and maintenance teams.
Comprehensive SLA options including 24/7 response, quarterly visits, and annual efficiency audits.
Contact Our Engineers to discuss your clarification requirements and get a customised quotation.
Side-by-side comparison of clarification technologies: rise rates, footprint, TSS removal, and capital cost.
Compare technologies →Root-cause diagnostics for carry-over, plate fouling, uneven flow distribution, and sludge hopper blockages.
View troubleshooting guide →Our expertise spans multiple industries with sector-specific water treatment solutions.