Our Capabilities

Process Engineering

Coffey’s Process Engineering Team designs, validates, and optimises water and wastewater treatment systems for municipal and industrial clients across Ireland and the UK. Our approach combines first-principles design with piloting and data-driven controls to deliver compliant, operator-friendly plants with low whole-life cost.

Core Capabilities

Water Treatment

  • Raw water characterisation and optioneering

  • Coagulation and pH/alkalinity control

  • Flocculation, clarification and filtration

  • UV and chlorination with Ct verification

  • Tertiary polishing and sludge handling

Wastewater Treatment

  • ASP, SBR, IFAS/MBBR, trickling filters

  • Tertiary filtration and UV

  • Nutrient removal strategies

Industrial Applications

  • Process water treatment (RO, NF, UF)

  • High-strength trade effluent treatment

  • Experience across dairy, pharma/biopharma and distilling

Digital by Design

Digital and analytics are embedded in every project. Examples include:

  • Model-based coagulant and acid trim using UV254/DOC

  • THM/DBP prediction from sensor and lab data

  • Inflow forecasting for storm readiness

  • Predictive control of aeration, pumping and backwash

Our toolset includes BioWin, SUMO, CFD and full SCADA/historian integration.

Deliverables

We engage confidently at DQ, IQ, OQ and PQ stages, aligning with client gate reviews. Typical deliverables include:

  • Basis of Design (BoD), PFDs and mass balances

  • P&IDs and hydraulic profiles

  • Control philosophies and FDS

  • Sampling and commissioning plans

  • Performance test protocols

Scale and Results

Our portfolio ranges from small wastewater schemes to 81,000 PE works, and from compact water packages to 300 ML/d treatment plants.

A recent industrial project delivered a 2,000 m³/d high-end water treatment system for a dairy and nutrition client, supported by full validation. Outcomes included:

  • Robust compliance from day one

  • Reduced chemical and energy demand

  • Smooth, safe operation

Process Engineering Projects

All projects