Environmentally-compliant seawater intake and discharge for coastal facilities — low-impact abstraction, marine-life protection and a controlled return to sea, with the design and documentation to support abstraction, discharge and marine-licence applications (including Scotland’s CAR / SEPA regime).
Taking water from the sea and returning it is a regulated activity. In Scotland, abstraction and discharge are controlled by the Water Environment (Controlled Activities) Regulations (CAR) administered by SEPA, and works on the seabed or shoreline typically need a marine licence from Marine Directorate (Marine Scotland); similar regimes apply elsewhere in the UK and overseas. The smoothest route to consent is an intake and discharge that are designed to be low-impact from the outset — the right siting, a protective screen and approach velocity, and a discharge that meets quality and thermal limits. Reynolds & Bauhm builds that into the engineering and provides the supporting calculations and drawings your consultant or regulator needs.
A through-screen velocity ≤0.15 m/s (the EPA 316(b) benchmark) lets fish and larvae swim away rather than be drawn in — the single most effective measure against impingement and entrainment, and a strong point in any application.
Cylindrical wedge-wire screens with fine slots physically exclude larvae and small organisms while resisting blinding, often with an air-burst clean to keep them clear without chemicals.
Wedge-Wire ScreensCareful intake siting — depth, distance from sensitive habitat and from the discharge — and, where ground allows, a subsurface intake that draws through the seabed and all but eliminates entrainment.
Subsurface IntakesSolids removal and, where used, full de-chlorination / oxidant destruction so the discharge carries no residual disinfectant, treatment chemical or excess nutrients beyond consent limits.
Where heating or cooling is used, the return temperature and any mixing-zone effect are assessed and controlled to stay within the permitted thermal uplift.
Outfall location and diffuser design promote rapid dilution and keep the discharge clear of the intake, avoiding recirculation and minimising local impact.
We are the specialist seawater-systems designer behind your scheme. Working with your MEP consultant, architect or environmental adviser, we deliver: intake and discharge concept and siting options; screen and velocity calculations demonstrating marine-life protection; pump, filtration and discharge specifications; P&IDs, general arrangements and equipment schedules; and the supporting hydraulic and quality calculations that underpin a CAR licence, discharge consent or marine-licence application. The result is a system demonstrably designed for compliance, supporting a smoother regulatory determination.
Share the site, flows and what the water is used for — we’ll advise on a low-impact intake and compliant discharge and provide the engineering your application needs.
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