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Decentralised Approach

Decentralised systems treat wastewater close to the source, eliminating the need for extensive sewer infrastructure. Thi

Engineered Performance

Every system is designed for your specific wastewater characteristics, flow profile, and effluent targets. No off-the-shelf assumptions — just validated process engineering.

Proven Reliability

Equipment selected from manufacturers with proven field performance in similar applications. Duty/standby arrangements and robust construction minimise unplanned downtime.

Environmental Compliance

Design targets are set at 50-70% of consent limits, providing a safety margin for process variation. Continuous monitoring and automated reporting demonstrate compliance.

Operator Friendly

Intuitive controls, clear instrumentation, and accessible maintenance points reduce training requirements. Standard operating procedures written in plain language.

Technical Support

Direct access to our process engineers for operational advice, troubleshooting, and optimisation. Remote diagnostics and rapid on-site response keep your plant running.

Quality Assurance

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.

Modular Design

Our modular treatment units can serve individual homes, small clusters, or entire subdivisions. Units can be added as de

Site Survey

Laser scanning, utility mapping, and soil investigation inform the design. We account for existing infrastructure, access constraints, and future expansion needs.

Process Modelling

Mass balance, hydraulic, and process models size equipment correctly for peak, average, and minimum flow conditions. Over-design wastes Capital expenditure; under-design fails.

3D Modelling

Revit and SolidWorks models show exactly how equipment fits in the available space. Clash detection resolves pipework conflicts before steel is cut.

HAZOP Review

Hazard and operability studies identify process safety risks, environmental releases, and equipment failure scenarios. Mitigation measures are designed in from the outset.

Peer Review

Independent chartered engineers review calculations, drawings, and specifications. Third-party verification adds confidence for boards, lenders, and insurers.

Value Engineering

Constructability reviews during design identify operational benefits and programme efficiencies. Early contractor involvement prevents expensive surprises during installation.

Applications

Decentralised systems are used for rural homes, recreational facilities, remote industrial sites, and new developments w

Industrial Process Water

Treatment for cooling towers, boilers, and process make-up. Removes hardness, silica, and organics to prevent scaling, fouling, and corrosion in heat transfer equipment.

Agricultural Irrigation

Effluent treated to crop-safe standards for irrigation of cereals, vegetables, and fodder. Nutrient content reduces fertiliser requirement while pathogen removal protects food safety.

Building Services

Treated water for HVAC make-up, toilet flushing, and landscape irrigation in commercial and residential developments. Reduces municipal water demand and sewer loading.

Vehicle Wash

Recycled wash water with oil separation, solids removal, and disinfection. Closed-loop systems reduce freshwater use by 80-90% in commercial truck and bus wash facilities.

Dust Suppression

Treated wastewater suitable for haul road and demolition dust control. Basic solids removal and pH adjustment sufficient for this non-potable, non-contact application.

Aquifer Recharge

Highly treated effluent used to replenish groundwater reserves. Requires advanced treatment including reverse osmosis and disinfection to meet drinking water standards.

Related Pages

Municipal Centralised

Large-scale centralised wastewater treatment plants for cities and municipalities.

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Municipal Compliance

Ensure municipal wastewater treatment compliance with discharge permits.

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Municipal Environmental

Protect receiving waters with advanced municipal wastewater treatment.

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Municipal Flow Variations

Handle wet weather flow variations in municipal WWTPs.

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Municipal Population

Municipal WWTP design based on population equivalents.

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Municipal Reuse

Tertiary treatment for municipal wastewater reuse.

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Municipal Wastewater Treatment Process

Municipal 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.

Preliminary Treatment

Screening, grit removal, and flow equalisation protect downstream processes from damage and overload.

Primary Clarification

Gravity separation of settleable solids achieving 50-70% TSS and 25-40% BOD removal.

Biological Treatment

Activated sludge, MBBR, or SBR processes remove dissolved organics and enable nutrient control.

Tertiary & Disinfection

Filtration, UV, or chemical disinfection guarantees compliance with bathing water and reuse standards.

Plant Design Parameters

Design Flow50 – 500,000 PE (population equivalent)
Dry Weather Flow150 – 250 L/PE/day
BOD Loading50 – 70 g/PE/day
TSS Loading60 – 90 g/PE/day
Nitrogen Loading8 – 12 g/PE/day
Phosphorus Loading1.5 – 3.0 g/PE/day
Hydraulic Retention4 – 12 hours (biological stage)
Sludge Production30 – 50 g DS/PE/day

Discharge Standards & Compliance

Urban Wastewater Directive

EU 91/271/EEC compliance for BOD, COD, TSS, and nutrient removal based on plant size and sensitivity.

Bathing Water Standards

Enhanced disinfection and nutrient removal for coastal and recreational water discharges.

Water Reuse Regulations

Compliance with REGULATION (EU) 2020/741 for agricultural irrigation and industrial reuse.

Need help with decentralised systems?

Our experts can design a system tailored to your specific requirements.

Industries We Serve

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