This is an illustrative scenario showing how Reynolds & Bauhm equipment can be configured for this application. Every site has unique requirements — contact us for a solution tailored to your specific wastewater characteristics.
Combined-cycle power plant with cooling tower blowdown of 200 m3/day. TDS 4,500 mg/L, hardness 800 mg/L as CaCO3, silica 120 mg/L, conductivity 7,200 microS/cm. Blowdown represents 15% of total makeup water. Target: 75% water recovery for cooling tower makeup reuse.
Step-by-step process configuration from raw wastewater to compliant discharge.
Lime-soda softening removes calcium and magnesium hardness with lime slurry; precipitated calcium carbonate settles in the clarifier, with silica co-precipitated.
A lamella clarifier separates the softening precipitates. Settled sludge is dewatered on a screw press and the clarified overflow is directed to filtration.
A multimedia sand / anthracite filter captures residual suspended solids, while 5-micron cartridges give the RO membranes their final line of protection.
Brackish-water RO with anti-scalant dosing in a two-pass configuration delivers high-quality reuse water; the concentrated reject is sent to the evaporation pond.
Permeate pH is trimmed to 7.5–8.0 with caustic soda for corrosion control, then a corrosion inhibitor and biocide are dosed before the water is pumped to the cooling-tower sump.
Compliant reuse water is returned to the cooling circuit and brine is routed to evaporation — cutting fresh make-up demand and closing the water loop.
The specific equipment selected for this application, sized for the flow rate and contaminant load.
Lime slurry preparation 10% w/v, day tank 10 m3, progressive cavity pump, flow control.
View EquipmentSoftening clarifier 60 m2, sludge rake, automatic desludging, 2h retention.
View EquipmentBWRO 8-inch vessels, 75% recovery, anti-scalant dosing, CIP system, 200 m3/day.
View EquipmentDual-media sand/anthracite, automatic backwash, turbidity monitor, 25 m3/h.
View EquipmentRepresentative performance data based on typical operating conditions for this equipment configuration.
Explore the full range of equipment used in this and similar applications.
Discover how these treatment processes connect to form complete wastewater treatment solutions.
Reynolds & Bauhm follows a structured engineering methodology for every project. We begin with detailed wastewater characterisation, process selection based on contaminant profiles, pilot testing where required, and full-scale design with performance guarantees. Our multidisciplinary team of chemical, mechanical, and electrical engineers ensures seamless integration of process, mechanical, and control disciplines.
Comprehensive influent analysis including COD, BOD, TSS, heavy metals, pH, temperature, and flow profiling.
Process flow development with P&IDs, mass balances, and hydraulic modelling validated by CFD where appropriate.
On-site pilot trials validate performance guarantees under actual operating conditions before capital commitment.
FAT, SAT, performance trials, operator training, and handover documentation ensuring operational readiness.
| Pre-Treatment | Screening, grit removal, and flow equalisation |
| Primary Treatment | DAF or lamella clarification for solids and oil removal |
| Secondary Treatment | Biological oxidation (activated sludge, MBBR, or SBR) |
| Tertiary Treatment | Filtration, UV disinfection, or chemical polishing |
| Sludge Management | Thickening and dewatering via belt press or centrifuge |
| Control System | PLC with HMI touchscreen and optional SCADA integration |
| Chemical Dosing | Automated coagulant, flocculant, and pH correction |
| Materials | SS316L, duplex, or rubber-lined carbon steel |
85 – 98% chemical oxygen demand reduction depending on process configuration and influent variability.
90 – 99% suspended solids reduction through combined physical and biological treatment stages.
Tertiary treatment enables up to 80% water recycling for non-potable process applications.
Our engineers will adapt this equipment configuration to your specific wastewater analysis, flow rate, and discharge requirements.
Our expertise spans multiple industries with sector-specific water treatment solutions.