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.
Open seawater intake for 5,000 m3/day SWRO desalination plant. Raw seawater has SDI 12, turbidity 15 NTU, oil 3 mg/L, and seasonal algae blooms. SWRO membranes require SDI <3 and turbidity <1 NTU. Membrane fouling was requiring monthly CIP, reducing plant availability to 85%.
Step-by-step process configuration from raw wastewater to compliant discharge.
Travelling water screens at intake remove debris and marine organisms. Chlorination at 2 mg/L prevents biofouling in intake pipeline. Flow measurement and automatic control.
High-rate DAF with coagulant and polymer dosing removes algae, oil, and suspended solids during bloom events. Achieves consistent effluent turbidity <2 NTU and oil <0.5 mg/L. Protects downstream filtration.
Dual-media anthracite/sand filters operate at 10 m/h filtration velocity. Backwash triggered by headloss or timer. Effluent turbidity <0.5 NTU. SDI reduced to 4-5.
5-micron pleated cartridge filters provide final protection for RO membranes. Differential pressure monitoring triggers change-out at 1 bar. SDI consistently <3 achieved.
Complete pretreatment train extends SWRO CIP interval from 30 to 90 days. Membrane replacement interval extended from 3 to 5 years. Plant availability increased to 97%. Annual O&M cost reduced by 35%.
The specific equipment selected for this application, sized for the flow rate and contaminant load.
High-rate DAF, 250 m3/h, coagulant/polymer dosing, SS construction, marine-grade coating.
View EquipmentDual-media anthracite/sand, 3.0 m diameter, 10 m/h velocity, automatic backwash.
View Equipment5-micron pleated cartridges, 8x40 inch, stainless steel housing, differential pressure monitoring.
View EquipmentSodium hypochlorite day tank, metering pump, residual chlorine analyser.
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.
Antiscalant dosing to prevent calcium sulphate precipitation on membranes.
View EquipmentDiscover 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.
For the depth-filtration step in this process we use multimedia filters with graded anthracite/sand/garnet beds. The technical detail behind sizing, media specification, backwash hydraulics and field troubleshooting lives in a dedicated library — pick the topic:
Product page with design parameters and process-train context.
ViewSizing, freeboard, distributors, nozzle-plate underdrain.
ViewAnthracite, sand, garnet specifications — ES, UC, SG.
ViewAir scour, fluidisation hydraulics, valve sequencing.
ViewWhere MMF fits in pretreatment, polishing, reuse trains.
ViewMudballs, channelling, breakthrough, media loss diagnoses.
ViewOur expertise spans multiple industries with sector-specific water treatment solutions.