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.
Speciality chemical plant generates acidic rinse streams (pH 1.5-3.0, 20 m3/h) from reactor cleaning and alkaline CIP effluent (pH 11-13, 8 m3/h) from equipment washdown. Combined effluent must meet sewer discharge pH 6-9 with no excursions. Highly variable flow and concentration requires robust automated control.
Step-by-step process configuration from raw wastewater to compliant discharge.
Two 50 m3 batch equalization tanks segregate acidic and alkaline streams. Online pH, conductivity, and flow monitoring feeds PLC control system. HMI displays real-time status and alarm history.
Acidic stream dosed with 33% caustic soda (NaOH) in first-stage reaction tank with 15-minute HRT. pH target 7.0. Alkaline stream dosed with 98% sulphuric acid in parallel first stage. Both controlled by independent PID loops.
Second 30 m3 tank provides flow balancing between reaction stages and acts as buffer for chemical dosing response time. Online pH verification triggers alarm if outside 5-9 range.
Second-stage caustic or acid dosing fine-tunes pH to 7.0 +/- 0.3. Redundant pH sensors with auto-calibration every 24 hours. Discharge interlock prevents out-of-spec release.
Complete data logging of all pH readings, chemical consumption, and discharge events. Automated batch reports for environmental compliance. Remote monitoring and SMS alarm notification.
The specific equipment selected for this application, sized for the flow rate and contaminant load.
33% NaOH day tank with cooling coil, magnetically coupled centrifugal pump, Coriolis mass flow meter.
View Equipment98% H2SO4 with PE tank, containment bund, titanium metering pump, leak detection.
View EquipmentSiemens S7-1200 PLC, dual redundant pH transmitters, PID control, touchscreen HMI.
View EquipmentPE-lined steel, 50 m3 and 30 m3, turbine mixer, level control, temperature monitoring.
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.
Industrial pH probes with automatic temperature compensation and buffer calibration.
View EquipmentDiaphragm and peristaltic metering pumps for precise chemical delivery.
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.
Our expertise spans multiple industries with sector-specific water treatment solutions.