Large-scale municipal WWTPs serving urban populations with comprehensive treatment processes.
CFD, P&ID, SCADA and commissioning for critical water treatment plants.
Plant layouts, piping isometrics and construction-ready engineering drawings.
Flow, mixing and thermal CFD across treatment and process equipment.
Full mechanical, physico-chemical, biological and sludge equipment range.
Centralised treatment plants serve entire communities with comprehensive treatment including preliminary, primary, secon
Laser scanning, utility mapping, and soil investigation inform the design. We account for existing infrastructure, access constraints, and future expansion needs.
Mass balance, hydraulic, and process models size equipment correctly for peak, average, and minimum flow conditions. Over-design wastes Capital expenditure; under-design fails.
Revit and SolidWorks models show exactly how equipment fits in the available space. Clash detection resolves pipework conflicts before steel is cut.
Hazard and operability studies identify process safety risks, environmental releases, and equipment failure scenarios. Mitigation measures are designed in from the outset.
Independent chartered engineers review calculations, drawings, and specifications. Third-party verification adds confidence for boards, lenders, and insurers.
Constructability reviews during design identify operational benefits and programme efficiencies. Early contractor involvement prevents expensive surprises during installation.
Our centralised plants include screening, grit removal, primary clarification, advanced biological treatment, secondary
Every system is designed for your specific wastewater characteristics, flow profile, and effluent targets. No off-the-shelf assumptions — just validated process engineering.
Equipment selected from manufacturers with proven field performance in similar applications. Duty/standby arrangements and robust construction minimise unplanned downtime.
Design targets are set at 50-70% of consent limits, providing a safety margin for process variation. Continuous monitoring and automated reporting demonstrate compliance.
Intuitive controls, clear instrumentation, and accessible maintenance points reduce training requirements. Standard operating procedures written in plain language.
Direct access to our process engineers for operational advice, troubleshooting, and optimisation. Remote diagnostics and rapid on-site response keep your plant running.
Materials certified to EN 10204 3.1, welding procedures qualified to ISO 9606, and pressure testing to 1.5x design pressure. Full traceability from mill to commissioning.
Reynolds & Bauhm provides comprehensive O&M support including operator training, maintenance programs, and spare parts i
Step-by-step start-up sequences for equipment commissioning, seasonal restart, and post-maintenance return to service. Checklists prevent missed steps.
Standard operating procedures for normal running, chemical preparation, and sampling. Shift handover logs ensure continuity between operators.
Scheduled servicing based on manufacturer recommendations and run-hours. Preventive tasks include lubrication, filter changes, and instrument calibration.
Clear protocols for power failure, equipment breakdown, effluent breach, and chemical spill. Automatic safe-state sequences protect personnel and environment.
Systematic fault diagnosis guides for common problems. From high effluent COD to pump cavitation, each symptom links to probable causes and corrective actions.
Controlled shutdown sequences for planned maintenance, extended holidays, and emergency stop. Drain-down, isolation, and preservation prevent damage during standstill.
Ensure municipal wastewater treatment compliance with discharge permits.
View PageDecentralised wastewater treatment plants for villages, resorts and remote communities.
View PageProtect receiving waters with advanced municipal wastewater treatment.
View PageMunicipal wastewater treatment protects public health and receiving waters by progressively removing solids, organic matter, nutrients, and pathogens from sewage. Our engineered solutions address the unique challenges of municipal flows including diurnal variation, stormwater ingress, seasonal population changes, and increasingly stringent discharge standards.
Screening, grit removal, and flow equalisation protect downstream processes from damage and overload.
Gravity separation of settleable solids achieving 50-70% TSS and 25-40% BOD removal.
Activated sludge, MBBR, or SBR processes remove dissolved organics and enable nutrient control.
Filtration, UV, or chemical disinfection guarantees compliance with bathing water and reuse standards.
| Design Flow | 50 – 500,000 PE (population equivalent) |
| Dry Weather Flow | 150 – 250 L/PE/day |
| BOD Loading | 50 – 70 g/PE/day |
| TSS Loading | 60 – 90 g/PE/day |
| Nitrogen Loading | 8 – 12 g/PE/day |
| Phosphorus Loading | 1.5 – 3.0 g/PE/day |
| Hydraulic Retention | 4 – 12 hours (biological stage) |
| Sludge Production | 30 – 50 g DS/PE/day |
EU 91/271/EEC compliance for BOD, COD, TSS, and nutrient removal based on plant size and sensitivity.
Enhanced disinfection and nutrient removal for coastal and recreational water discharges.
Compliance with REGULATION (EU) 2020/741 for agricultural irrigation and industrial reuse.
Our experts can design a system tailored to your specific requirements.
Our expertise spans multiple industries with sector-specific water treatment solutions.