UK HQ Your time

Our Engineering Services

From concept to commissioning and beyond. Integrated engineering, fabrication and automation under one roof โ€” eliminating interface risks and delivering water treatment systems backed by contractual performance guarantees.

Since 2016
Global Delivery
ISO 9001 Certified
Performance Guaranteed

Scientific Modelling & Simulation

Behind the design sits a full modelling toolkit โ€” CFD, process simulation, biokinetic (ASM/ADM), reaction-kinetics, hydraulic, limnological and data-driven digital-twin modelling. We pick, or combine, the disciplines that answer your question and validate them against real data.

Explore Scientific Modelling

Engineering Services at a Glance

Comprehensive capabilities across the entire water treatment project lifecycle

Bespoke Design

Custom equipment design from wastewater characterisation through 3D CAD, CFD validation, and manufacturing documentation.

  • Process design & mass balance
  • SolidWorks 3D modelling
  • CFD & structural analysis

Explore Design Services

From concept to fabrication docs

CFD Simulation

Computational fluid dynamics for contact zone hydrodynamics, white water distribution, and sludge removal optimisation.

  • Multiphase flow modelling
  • Bubble-particle attachment
  • Validation against pilot data

Visit CFD Hub

Simulation services & case studies

P&ID & Process Design

Professional piping and instrumentation diagrams, hydraulic profiles, and control narratives to industry standards.

  • ISA-standard P&ID drafting
  • HAZOP & SIL assessment support
  • As-built documentation

View P&ID Services

Documentation & process design

SCADA & Automation

Control system design, PLC programming, HMI development, and Industry 4.0 integration for water treatment plants.

  • PLC & HMI programming
  • Remote monitoring dashboards
  • Industry 4.0 integration

Automation Services

Control systems & integration

Turnkey Delivery

Single-point-responsibility project delivery from basic engineering through fabrication, installation, and commissioning.

  • Design + supply + install
  • Performance guarantees
  • 30% faster than fragmented

Turnkey Projects

Single-point delivery model

Aftermarket Support

Preventive maintenance, emergency response, spare parts, operator training, and plant optimisation services.

  • Annual maintenance contracts
  • 24/7 emergency response
  • Operator training programmes

Support Services

Maintenance & optimisation

Everything We Do โ€” Complete Service Directory

Our capability runs from the first water sample to lifetime support. Browse every service by stage below.

Design & Engineering

CFD, P&ID & Documentation

Automation, Control & Monitoring

Chemical Dosing & Treatment

Pilot, Manufacturing & Delivery

Installation & Commissioning

Operations, Aftermarket & Upgrades

How We Deliver Value

Specific challenges, engineered solutions, and accountable delivery

Unsure if DAF or Lamella is right for you
Jar testing + treatability study + technology selection matrix
Process Engineering
Our process engineers run jar tests and treatability studies on your actual wastewater samples, then produce a technology selection matrix comparing Capital expenditure, Operating expenditure, footprint, and effluent quality for each option.
Existing DAF underperforming
CFD diagnosis + retrofit design + fabrication
Bespoke Design + CFD
CFD simulation identifies hydraulic short-circuiting, dead zones, and white water maldistribution. We design retrofits โ€” new baffles, diffuser upgrades, or scraper modifications โ€” and fabricate them in-house.
Need treatment in 4 weeks, not 4 months
Containerised QuickDAF from stock or rapid-build program
Turnkey Delivery
Pre-engineered containerised DAF units held in stock for immediate dispatch. Custom configurations available through our rapid-build program with parallel engineering and procurement.
Plant must meet new phosphorus limit
Process audit + chemical upgrade + control modification
Retrofit Engineering
Comprehensive process audit identifies chemical dosing gaps and control inefficiencies. We upgrade coagulation systems, install tertiary filtration, and reprogramme PLC logic to hit phosphorus <0.5 mg/L consistently.
Downtime costs our
24/7 remote monitoring + guaranteed 4-hour response
Aftermarket SLA
SCADA-connected remote diagnostics with predictive maintenance algorithms. Critical spares held on-site or within 4-hour delivery radius. Emergency response team on standby.
No in-house treatment expertise
Full O&M outsourcing with performance guarantees
Operations Contract
We place trained operators on-site, manage chemical supply chains, run laboratory QA, and report directly to your environmental compliance team. Performance penalties and bonuses keep everyone aligned.

Our Service Process

A systematic approach from first contact to long-term support

We gather flow rates, wastewater analysis, space constraints, budget, and timeline to scope your project accurately.
Site visit, sampling protocol, jar testing, and treatability studies to validate technical assumptions.
Technical solution, process flow diagram, equipment list, Capital/Operating breakdown, and project schedule.
Design reviews (30/60/90/IFC), fabrication updates, FAT, shipping logistics, and installation management.
Commissioning, operator training, as-built documentation, O&M manuals, and warranty activation.
Preventive maintenance schedule, spare parts recommendation, performance monitoring, and upgrade roadmap.

Service Bundles & Engagement Models

Flexible engagement options from feasibility study to full O&M outsourcing

Integrated Project Delivery

Unlike fragmented project delivery where design, fabrication, and automation are subcontracted to separate vendors, Reynolds & Bauhm maintains engineering continuity from concept to commissioning. Our CFD engineers talk directly to our P&ID designers; our P&ID designers walk the fabrication floor; our SCADA programmers commission the systems they specified. This integration eliminates interface risks, compresses schedules, and ensures performance guarantees are backed by engineering accountability.

1
Single Point of Responsibility
30%
Faster Delivery vs. Fragmented
Zero
Design-Fabrication Interface Risk
100%
Performance Guarantee Backed

Bespoke Equipment Design & Engineering

From wastewater characterisation to manufacturing documentation

Our in-house engineering team delivers custom water treatment equipment through a gated design process: process design โ†’ 3D CAD modelling โ†’ CFD validation โ†’ structural/thermal analysis โ†’ manufacturing documentation. Every design is backed by material certifications, weld procedures, and hydrostatic testing.

3D CAD & Digital Twin

SolidWorks-based 3D modelling with clash detection, BOM generation, and LOD 400 fabrication detail. BIM-compatible exports available for integration with existing plant models.

CFD-Integrated Design

Computational fluid dynamics validates contact zone hydrodynamics, white water distribution, and sludge removal efficiency before steel is cut. See our brewery CFD case study.

Design Standards Compliance

ASME VIII Div.1 pressure vessels, PED 2014/68/EU, Eurocode 3 structural steel, ATEX/IECEx for hazardous areas. Full design review gates: 30% conceptual โ†’ 60% preliminary โ†’ 90% detailed โ†’ IFC issue.

Explore Bespoke Design Services

Design Methodology

  • Wastewater characterisation & mass balance
  • Heat & material balances
  • Hydraulic profiles & pipe sizing
  • Pump & instrument specification
  • 3D CAD modelling (SolidWorks)
  • CFD validation of flow patterns
  • Thermal & structural analysis
  • Material selection matrix
  • Fabrication isometrics & BOMs
  • O&M manual compilation

Material Selection

SS304 / SS316General wastewater ยท EN 1.4301 / 1.4401
SS316L / Duplex 2205Chloride-rich / seawater ยท EN 1.4404 / 1.4462
SS316L + CoatingAcidic effluent ยท Halar / PTFE lining
Hardox / Rubber-linedAbrasive slurry ยท HB 400-500

Plant Upgrades, Retrofits & Revamps

Extend plant life, increase capacity, and meet evolving regulatory requirements without greenfield construction

Condition Assessment

Performance benchmarking against original design, bottleneck identification, and remaining useful life estimation for critical equipment.

  • Hydraulic & organic load audits
  • Equipment condition surveys
  • Energy consumption baseline

Capacity Debottlenecking

Scale up existing infrastructure through hydraulic upgrades, additional treatment processes, and process intensification.

  • Parallel train additions
  • Equipment upsizing & replacement
  • Modular skid integration

Regulatory Compliance Upgrades

Bring aging facilities into compliance with new discharge limits, nutrient regulations, and emerging contaminant standards.

  • Nutrient removal (TN/TP)
  • Micropollutant & PFAS treatment
  • Disinfection enhancements

Energy Optimisation

Reduce operating requirements with VFD retrofits, aeration optimisation, advanced process control, and biogas recovery integration.

  • VFD retrofits on blowers/pumps
  • DO-based aeration control
  • Biogas recovery & CHP

Specialised Treatment Services

Engineering expertise for difficult-to-treat wastewater, emergency response, and water reuse

Difficult-to-Treat Wastewater

High-strength industrial effluent, toxic shock loads, extreme pH, recalcitrant organics, and emerging contaminants.

  • COD >10,000 mg/L treatability
  • PFAS & micropollutant removal
  • High salinity (>50 g/L) processes

Emergency & Temporary Treatment

Containerised rapid deployment for plant failures, bypass treatment during maintenance, and disaster response.

  • QuickDAF mobile units from stock
  • 48-hour deployment capability
  • Short-term rental & leasing

Water Reuse & Resource Recovery

Treatment processes for industrial process reuse, nutrient recovery, energy recovery, and zero liquid discharge.

  • Process water & cooling tower makeup
  • Struvite & phosphorus recovery
  • Zero liquid discharge (ZLD) design

Process Water & Ultrapure

Boiler feed water, cooling tower treatment, closed-loop systems, and ultrapure water for pharmaceutical & electronics.

  • RO / EDI polishing trains
  • Scale & corrosion inhibition
  • CIP & sanitation integration

Engineering Capabilities

The technical disciplines that underpin every project we deliver

Turnkey Project Delivery

Single-point responsibility for engineering, procurement, construction, and commissioning. One contractor. One guarantee.

  • Risk allocation & interface management
  • Parallel engineering & procurement
  • Factory acceptance testing (FAT)
  • Site acceptance testing (SAT)
  • Performance guarantee contracts
Explore Turnkey Delivery

Aftermarket Services & O&M

Protect your investment with scheduled maintenance, critical spares inventory, and guaranteed response times.

  • Recommended & critical spares lists
  • Scheduled inspections & calibration
  • 24/7 remote diagnostics hotline
  • Operator training & certification
  • Equipment refurbishment & rebuilds
Explore Aftermarket Support

Global Service Network

Local presence with global supply chain and engineering capability

United Kingdom

Headquarters, design centre, and primary fabrication facility. Handles complex bespoke projects and regulatory compliance for UK & Commonwealth markets.

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Netherlands

Water technology hub serving Benelux and Northern EU. Specialist in desalination, process water, and circular economy.

CET (UTC+1)

Poland

Cost-competitive manufacturing centre with full ASME & PED certification. Enables high-quality fabrication at competitive Capital expenditure for mid-size projects.

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Germany

Engineering excellence for automotive, chemical, and industrial clients. ATEX compliance and Industry 4.0 integration.

CET (UTC+1)

Need a Custom Engineering Solution?

We design solutions tailored to your process, budget, and timeline โ€” from feasibility study to full turnkey delivery. Speak to our engineers for a no-obligation consultation and preliminary sizing.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.