01
Applications & Common Challenges
- For production-water polishing, utility water, cooling-tower make-up, washing and other evaluated reuse applications.
- Combining streams may increase salts, hardness, organics and membrane-fouling risk; each reuse point can require a different quality.
- Seasonal flow, batch discharge and concentrate destination strongly affect stability and lifecycle cost.
02
Information Needed Before Design
- Source, normal/peak flow, schedule and full water analysis for each stream.
- Reuse purpose, target quality, continuity, storage and redundancy.
- Existing process, chemical/sludge use, alarms, cleaning and operating records.
- Footprint, civil/corrosion scope, concentrate/sludge destination and applicable requirements.
03
Typical Process Logic
- Segregation & equalization → targeted pretreatment → physicochemical/biological treatment → membrane protection → UF/RO or other polishing → disinfection, storage and fit-for-purpose reuse.
- Softening, desalination, concentration, recycle or bypass are selected from the water balance, reuse purpose and concentrate route.
04
Instrumentation & Control
- Monitor flow, level, pressure, differential pressure, conductivity and selected pH/ORP/turbidity; interlock critical level, pressure and off-spec conditions.
- Trend product water, recovery, cleaning, chemicals and membrane pressure; isolate off-spec water from the reuse network.
05
Risks & Project Boundaries
- Reuse is not automatically zero liquid discharge; concentrate, sludge and cleaning waste still require compliant management.
- Recovery depends on water quality, reuse point and project boundaries; no universal rate is promised.
- Define sampling, methods, assessment period, redundancy and scope in the technical agreement.