Meeting stringent discharge standards for BOD, TSS, nitrogen, phosphorus, and pathogens. Our municipal treatment systems ensure Global Standards Reference with international regulations including EU Urban Wastewater Directive, US EPA standards, and local sewer discharge requirements.
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.
Municipal wastewater treatment plants must meet strict discharge permit requirements to protect receiving waters and public health. These standards vary by region but consistently require effective removal of organic matter, suspended solids, nutrients, and pathogens. Reynolds & Bauhm systems are designed to achieve compliance with international standards including ISO, CE marking, and regional environmental regulations.
Biochemical Oxygen Demand must be reduced to typically less than 25 mg/L to prevent oxygen depletion in receiving waters and protect aquatic ecosystems.
Total Suspended Solids typically limited to less than 30 mg/L to prevent sedimentation, turbidity, and habitat degradation in rivers and streams.
Nitrogen and phosphorus removal prevents eutrophication. Typical limits: Total Nitrogen less than 10-15 mg/L, Total Phosphorus less than 1-2 mg/L.
Fecal coliform and E. coli reduction greater than 99.9% required for public health protection. UV disinfection or chlorination typically used.
| Parameter | Typical Limit | EU UWWTD Standard | US EPA Standard | Our System Performance |
|---|---|---|---|---|
| BOD5 | Less than 25 mg/L | Less than 25 mg/L (95%ile) | Less than 30 mg/L (monthly avg) | Less than 10 mg/L |
| COD | Less than 125 mg/L | Less than 125 mg/L | Varies by permit | Less than 50 mg/L |
| TSS | Less than 30 mg/L | Less than 35 mg/L (95%ile) | Less than 30 mg/L (monthly avg) | Less than 10 mg/L |
| Total Nitrogen | Less than 10-15 mg/L | Less than 10-15 mg/L (sensitive areas) | Varies by permit | Less than 5 mg/L |
| Total Phosphorus | Less than 1-2 mg/L | Less than 1-2 mg/L (sensitive areas) | Less than 1 mg/L (some permits) | Less than 0.5 mg/L |
| Fecal Coliform | Less than 200-1000 CFU/100mL | Varies by receiving water | Less than 200 CFU/100mL | Less than 100 CFU/100mL |
| pH | 6.0 - 9.0 | 6.0 - 9.0 | 6.0 - 9.0 | 6.5 - 8.5 |
View our worldwide compliance certifications for regional standards in UK, EU, North America, Middle East, Asia-Pacific, and other markets.
Our municipal treatment systems consistently achieve superior removal rates across all key parameters, ensuring reliable compliance with sewer discharge standards. Each treatment stage is optimised for maximum efficiency with minimal operational costs.
Achieve greater than 95% BOD removal through advanced biological treatment with optimised activated sludge or MBBR processes. Reynolds & Bauhm systems consistently achieve effluent BOD less than 10 mg/L.
Key Equipment: Biological reactors, aeration systems
Achieve greater than 95% TSS removal through primary and secondary clarification. Final polishing with filtration ensures consistent compliance even during peak flows.
Key Equipment: Lamella clarifiers, filtration systems
Achieve greater than 85% nitrogen removal through nitrification-denitrification processes. Multi-stage advanced biological treatment with precise process control ensures consistent performance.
Key Equipment: Anoxic/aerobic reactors, fine bubble aeration
Achieve greater than 90% phosphorus removal through enhanced biological phosphorus removal (EBPR) and/or chemical precipitation with ferric or alum dosing.
Key Equipment: Chemical dosing systems, DAF units
Achieve greater than 99.9% fecal coliform reduction through UV disinfection or chlorination/dechlorination. Automated dosing ensures consistent disinfection performance.
Key Equipment: UV disinfection systems, chlorination systems
Advanced SCADA systems with online analysers provide real-time monitoring and automated control to maintain optimal treatment performance and compliance.
Key Equipment: SCADA systems, online analysers
Comprehensive monitoring and documentation systems support regulatory compliance and simplify reporting requirements. Our SCADA systems provide automated data logging, real-time alerts, and customizable reporting for environmental agencies.
Reynolds & Bauhm equipment meets international standards and regional regulations for municipal wastewater treatment worldwide. View our complete compliance portfolio for detailed certification information.
CE marking, EU Urban Wastewater Treatment Directive compliance, EN standards for equipment design and safety.
Explore Standards ReferenceUS EPA compliance, NSF/ANSI standards, state-specific permit requirements, Canadian environmental regulations.
Explore Standards ReferenceCompliance with local discharge standards in China, Japan, Australia, Southeast Asia, and Middle East markets.
Explore Standards ReferenceISO 9001 quality management, ISO 14001 environmental management, OHSAS 18001/ISO 45001 safety standards.
Explore Standards ReferenceCompliance solutions for demanding industrial wastewater applications discharge to municipal sewer systems.
Explore Pretreatment ComplianceGMP compliance for pharmaceutical manufacturing wastewater treatment.
GMP ComplianceEnvironmental compliance for mining operations with metals removal.
Explore Mining EnvironmentalComplete overview of international standards and regional certifications.
Explore Standards ReferenceLarge-scale centralised wastewater treatment plants for cities and municipalities.
View PageDecentralised wastewater treatment plants for villages, resorts and remote communities.
View PageProtect receiving waters with advanced municipal wastewater treatment.
View PageOur experts can design a compliant system tailored to your specific regulatory requirements with Global Standards Reference support.
Our expertise spans multiple industries with sector-specific water treatment solutions.