In the pharmaceutical and biotechnology industries, the stable operation of GMP purified water systems relies on the efficient functioning of key components. HeShuo Water Treatment combines GMP compliance requirements with practical experience to outline the maintenance focus and replacement cycles for critical components, helping enterprises avoid water quality risks and ensure production compliance.
### 1. Pre-treatment System: Maintenance and Cycle of Key Components
Pre-treatment is the "first line of defense" of the system, requiring focused prevention of blockage and failure:
**Multimedia Filter Cartridge (Quartz Sand / Anthracite)**
- **Maintenance:** Backwash once every 24 hours (water backwash + air scouring); backwash immediately when the pressure difference between inlet and outlet ≥ 0.1 MPa.
- **Replacement Cycle:** 6-8 months; if the turbidity of the raw water is high (>10 NTU), shorten to 4 months.
**Activated Carbon Filter Cartridge**
- **Maintenance:** Check the effluent residual chlorine weekly (must be ≤0.05 mg/L); regenerate immediately if residual chlorine exceeds the limit.
- **Replacement Cycle:** 5-6 months; replace earlier if the TOC adsorption capacity decreases (effluent TOC > 0.3 mg/L).
**Security Filter Cartridge (5μm PP Folded Filter Cartridge)**
- **Maintenance:** Daily check the pressure difference; if ≥ 0.15 MPa, stop and replace.
- **Replacement Cycle:** 1-2 months; do not exceed the usage period (to avoid particle damage to the RO membrane).
### 2. Central Desalination System: Maintenance and Cycle of Key Components
The RO membrane and EDI module are the main components for ensuring water quality, requiring precise control of pollution and aging:
**RO Membrane (Spiral-wound Polyamide Membrane)**
**Conductivity / Resistivity Meter**
- **Maintenance:** Calibrate monthly using standard solutions (e.g., 1.413μS/cm standard solution).
- **Calibration Cycle:** Every 3 months; calibrate immediately if data deviation exceeds ±2%.
**TOC Detector**
- **Maintenance:** Validate weekly with standard solutions (e.g., 1 mg/L TOC standard water).
- **Calibration Cycle:** Every 6 months; recalibrate if detection error exceeds ±5%.
**Pressure / Flow Sensors**
- **Maintenance:** Check wiring and sealing every month.
- **Calibration Cycle:** Annually; calibrate if deviation exceeds ±3%.
### 3. HeShuo Maintenance Recommendations: Balancing Compliance and Efficiency
- **Establish Electronic Files:** Record installation time, maintenance records, and replacement cycles of each component, complying with GMP data traceability requirements.
- **Preventive Maintenance:** Prepare key components (e.g., RO membranes, UV lamps) 1-2 weeks in advance to avoid downtime.
- **Professional Service Support:** Invite the HeShuo team annually for a full system "check-up," including component performance testing and compliance assessment to reduce the risk of unexpected failures.
Strictly adhering to the maintenance and replacement cycles of key components is essential for the long-term stability and water quality compliance of GMP purified water systems, which is also a crucial aspect of compliant production in pharmaceutical and biotechnology enterprises.