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Optimized mixed-bed ion exchange resin specifically engineered for electrodeionization (EDI) systems.
High regeneration efficiency with low chemical consumption during EDI stack operation.
Excellent physical stability and uniform particle size distribution for consistent flow dynamics and pressure drop control.
Low extractables and high purity to meet stringent ultrapure water (UPW) requirements in semiconductor and pharmaceutical applications.
Enhanced resistance to organic fouling and silica breakthrough under continuous DC current operation.
Ultrapure water production for semiconductor wafer fabrication facilities.
Pharmaceutical-grade purified water (PW) and water for injection (WFI) polishing loops.
Power plant boiler feedwater treatment systems requiring >18.0 MΩ·cm resistivity.
Biotechnology process water systems where low endotoxin and TOC levels are critical.
Electronics manufacturing cleanroom water supply networks.
| Chemical Type | Strong acid cation (SAC) / strong base anion (SBA) mixed bed resin |
| Product Form | Moist, spherical beads |
| Appearance | Uniform amber-to-light brown translucent beads |
| Primary Applications | Polishing stage in EDI-based ultrapure water systems |
| Key Features | High exchange capacity, low compaction tendency, optimized for DC electric field |
| Benefits | Extended EDI module service life, reduced downtime, stable conductivity performance |
| Storage Conditions | Store at 5–35°C; avoid freezing and direct sunlight |
| Regeneration Requirement | Non-regenerable on-site; designed for single-use in EDI stacks |
Q1: What is the primary function of Zhengguang ZGC 550 EDI Resin in water purification systems?
A: Zhengguang ZGC 550 EDI Resin is a mixed-bed ion exchange resin specifically engineered for use in electrodeionization (EDI) modules. It enables continuous deionization of feedwater without chemical regeneration, producing high-purity water suitable for pharmaceutical, semiconductor, and power generation applications.
Q2: How does ZGC 550 differ from conventional mixed-bed resins used in batch demineralization?
A: Unlike standard mixed-bed resins requiring periodic acid-base regeneration, ZGC 550 is optimized for stable performance under continuous DC current in EDI stacks. It features enhanced physical durability, low-pressure drop characteristics, and balanced cation/anion exchange capacity to support long-term electrochemical regeneration and consistent resistivity output.
Q3: What are the recommended pretreatment requirements before feeding water to an EDI system using ZGC 550?
A: Effective pretreatment is essential: feedwater should be polished by reverse osmosis (RO), followed by fine filtration (typically ≤ 1 µm) and removal of oxidants (e.g., chlorine/chloramine) via activated carbon or sodium bisulfite dosing. Total organic carbon (TOC) and silica levels should be minimized to prevent fouling and ensure optimal resin longevity.
Q4: Can ZGC 550 be used as a direct replacement for other EDI resins in existing modules?
A: ZGC 550 is designed to meet standard EDI module dimensional and hydraulic specifications, making it compatible with many common industrial EDI units. However, performance validation—including current efficiency, product water quality, and pressure response—should be conducted during commissioning to confirm full functional equivalence in your specific system configuration.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
