1. Why scheduled maintenance matters
Industrial water treatment systems (RO membranes, UF, multi-stage pre-treatment) operate continuously and are susceptible to fouling and biofouling. Regular maintenance preserves permeate flow, stabilizes pressure, extends equipment life and ensures output water meets specifications.
Key KPIs to monitor
- TDS — permeate quality control.
- SDI — feedwater fouling potential.
- Recovery rate — system recovery efficiency.
- ΔP — transmembrane pressure, fouling indicator.
2. Advanced technical workflow
Our workflow: site survey, TDS/SDI measurement, sample analysis, CIP (acid → alkali → neutral rinse) per membrane OEM parameters and retest permeate against QCVN or client specs.
Main operations
- Pressure & ΔP checks to locate fouling.
- SDI tests; SDI > 5 requires pretreatment upgrade.
- CIP: acid wash → alkali → neutralization per OEM guidance.
- Microbial control: sample for biofilm and disinfect safely.
3. Service packages & contracts
We offer SLAs with defined response times, service frequency, parts lists, post-service technical reports and electronic maintenance logs (QR traceability).
Suggested packages
- Essential: monthly inspection + basic filter replacement.
- Industrial: biweekly checks, SDI/TDS monitoring, annual CIP.
- Critical: 2-hour priority response, SCADA integration, predictive maintenance.
Pricing from 500,000₫/service. VAT invoicing available.
4. Integration & optimization
Recommend online TDS sensors, antiscalant dosing control, automated backwash, and PLC/SCADA telemetry for alarms and trend analysis.
5. Quality commitments
Trained technicians, OEM parts, detailed technical reports, maintenance logs and QR access for service history.
Short FAQ
Q: When to perform RO CIP?
A: When ΔP increases by 15–20% or SDI exceeds recommended levels.
Q: How often to replace pre-filters?
A: Typically every 3–6 months depending on feedwater quality.
