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Water Reuse & Recovery

Transform treated effluent into a valuable process water resource. Membrane filtration, RO protection, and advanced polishing systems that reduce freshwater consumption, lower discharge volumes, and improve overall water stewardship.

Turning Effluent Into Resource

Reducing freshwater consumption and discharge volumes through water reuse

Water reuse is no longer an environmental aspiration; it is a commercial necessity. Rising freshwater requirements, increasingly stringent discharge permits, and corporate sustainability commitments are driving industries to recover and recycle process water. Reynolds & Bauhm designs integrated reuse systems that treat effluent to the quality required for cooling tower makeup, boiler feed, process washing, irrigation, and even product-contact applications.

Membrane Filtration

Ultrafiltration and microfiltration provide an absolute barrier against suspended solids, bacteria, and colloidal matter, producing consistent filtrate quality regardless of upstream process variation.

RO Protection

Pre-treatment systems designed specifically to protect reverse osmosis membranes from fouling, scaling, and chemical damage. Proper protection extends membrane life and maintains permeate quality.

Water Recycling

Closed-loop and partial-recycle systems that return treated water to process applications. Custom-designed for each industry's water quality requirements and operational constraints.

Membrane Filtration Systems

UF, MF, and integrated membrane bioreactors for water reuse

Ultrafiltration

UF membranes with pore sizes from 0.01 to 0.1 micron remove suspended solids, bacteria, colloids, and macromolecules. Ideal for producing consistent filtrate for RO feed or direct non-potable reuse applications.

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Microfiltration

MF membranes with 0.1 to 10 micron pores provide an absolute barrier for suspended solids and bacteria in a lower-pressure, lower-cost configuration. Excellent for tertiary filtration and polishing duties.

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Membrane Bioreactors

MBR systems combine biological treatment with membrane filtration in a single integrated process. Produce very high-quality effluent suitable for direct reuse or as RO feed without separate clarification and filtration stages.

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Disc Tube RO

Disc tube reverse osmosis systems for challenging feed waters with high fouling potential. Open channel design tolerates high suspended solids and organics, making them ideal for landfill leachate and industrial effluent concentration.

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Spiral Wound RO

Conventional spiral wound reverse osmosis for high-purity water production from pre-treated effluent. Multiple membrane grades available for brackish water, seawater, and industrial process water applications.

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Electrocoagulation

Electrocoagulation pre-treatment for membrane protection. Removes oil, suspended solids, and dissolved metals through in-situ coagulant generation, reducing membrane fouling and extending cleaning intervals.

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Water Reuse Applications

Industry-specific water recovery and recycling solutions

Cooling Tower Makeup

Tertiary-treated effluent polished through membrane filtration provides reliable cooling tower makeup water. Reduces freshwater consumption, blowdown volume, and chemical treatment costs in industrial cooling systems.

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Boiler Feed Water

High-purity water for steam generation through multi-stage treatment including RO, ion exchange, and degassing. Protects boilers from scaling, corrosion, and carryover while reducing freshwater and chemical requirements.

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Process Washing & Rinsing

Recycled water for vehicle wash, parts washing, and process rinse applications. Removes suspended solids and oil to prevent streaking, spotting, and contamination of washed surfaces.

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Irrigation & Landscaping

Biologically treated and disinfected effluent suitable for agricultural irrigation, golf course watering, and landscape irrigation. Nutrient content in treated water provides fertiliser value to crops and turf.

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RO Pre-Treatment

Comprehensive pre-treatment trains protecting RO membranes from fouling and scaling. DAF, filtration, and chemical conditioning ensure sustained membrane performance and extended element life.

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Oil & Gas Produced Water

Produced water treatment for reinjection, discharge, or reuse in upstream oil and gas operations. Remove oil, suspended solids, and dissolved organics to meet environmental and operational requirements.

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Process Fundamentals & Design

This treatment stage is engineered to achieve specific contaminant removal targets while providing stable, predictable performance across variable inlet conditions. Design parameters are calculated from wastewater characterisation data, regulatory requirements, and site-specific constraints including footprint, energy availability, and operator capability.

Process Optimisation

Design validated by CFD modelling and pilot testing to confirm performance guarantees.

Mechanical Reliability

Equipment selected for 20-year design life with minimal wearing parts and easy access.

Chemical Efficiency

Automated dosing and feedback control minimise reagent consumption and sludge production.

Compliance Assurance

Online monitoring and data logging demonstrate continuous consent compliance.

Design Parameters

Design Flow10 – 5,000 m³/h (application specific)
Inlet VariabilityDesigned for 1:3 peak-to-average flow ratio
Removal Efficiency85 – 99% depending on target contaminant
Hydraulic RetentionCalculated from kinetic constants and safety factors
Power Consumption0.5 – 5.0 kWh/100 m³ (process dependent)
Chemical DoseAuto-controlled based on online analysers
Sludge Production0.2 – 1.5 kg DS/kg contaminant removed
MaterialsSS304, SS316L, or carbon steel with coating

Integration with Treatment Train

No treatment stage operates in isolation. This process is designed to receive conditioned influent from upstream stages and deliver effluent quality suitable for downstream processes. Hydraulic and organic loading rates are balanced across the complete treatment train to prevent bottlenecking and ensure overall plant efficiency. Our engineers model the complete flowsheet to optimise Capital expenditure and Operating expenditure across the plant lifecycle.

Upstream Protection

Screening, equalisation, and pre-treatment protect this stage from damage and overload.

Downstream Conditioning

Effluent quality ensures downstream biology, filtration, or disinfection performs optimally.

Recycle Streams

Reject streams, filtrate, and centrate are routed back to appropriate upstream points.

Related Pages & Equipment

Equipment Catalogue

Browse our full range of water treatment equipment and systems.

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DAF Systems

Dissolved air flotation for solids and oil separation.

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Lamella Clarifiers

High-rate settling for primary and secondary clarification.

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Biological Treatment

Activated sludge, MBBR, and SBR systems for organic removal.

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Sludge Dewatering

Belt press, centrifuge, and screw press dewatering.

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Chemical Dosing

Automated coagulant, flocculant, and pH correction systems.

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Pilot Testing

Validate process performance with on-site pilot trials.

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Speak to Our Engineers

Request a consultation or quotation for your project.

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Develop Your Water Reuse Strategy

Speak with our process engineers to evaluate your effluent quality, identify reuse opportunities, and design a water recovery system that reduces costs and environmental impact.

Industries We Serve

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