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DESCRIPTION |
Weakly Basic Anion Exchange Resins are ion exchange materials containing primary, secondary, or tertiary amine functional groups that can operate effectively in acidic to neutral pH conditions. These resins excel at removing strong mineral acids but cannot remove weak acids such as carbon dioxide and silica.
Acid Removal: Efficient absorption of mineral acids (HCl, H₂SO₄, HNO₃) from aqueous solutions.
Organic Matter Removal: Effective for removing organic acids and color bodies from various process streams.
Decolorization: Widely used in sugar, chemical, and pharmaceutical industries for solution decolorization.
Acid Recovery: Recovery and purification of acids from industrial waste streams and process solutions.
Pre-treatment Protection: Serving as guard beds to protect strong base anion resins from organic fouling.
Type: Weak Base Anion Exchange Resin
Matrix: Polystyrene-DVB (Macroporous) or Polyacrylic
Functional Group: Tertiary Amine
Ionic Form As Shipped: Free Base
Total Exchange Capacity: ≥1.8 eq/L
Moisture Retention: 50-65%
Particle Size Range: 0.3-1.2 mm
Shipping Weight: 650-720 g/L
Specific Gravity: 1.05-1.10 g/ml
Uniformity Coefficient: ≤1.7
Maximum Operating Temperature: 100°C
Effective pH Range: 0-9
Note: These are general guidelines. Specific parameters must be confirmed with the manufacturer's data sheet.
1. Operating Conditions
Service Flow Rate: 5 - 20 BV/h
Operating Temperature: Up to 100°C
pH Range: 0 - 9 (effective operation)
Maximum Operating Pressure: 6 bar
2. Regeneration
Regenerant: NaOH (2-4%), Na₂CO₃ (3-5%), or NH₄OH
Regenerant Dosage: 60 - 120 g NaOH/L resin
Regeneration Flow Rate: 2 - 5 BV/h
Contact Time: 30 - 90 minutes
3. Rinsing
Rinse Flow Rate: 5 - 15 BV/h
Rinse Volume: 2 - 4 Bed Volumes
Rinse Endpoint: Effluent pH 7-9
4. Performance Indicators
Operating Capacity: 1.0 - 1.5 eq/L (depending on application)
Acid Removal Efficiency: >90% for mineral acids
Pressure Drop: Typically 0.5 - 1.5 bar/m bed depth
5. Important Considerations
pH Limitation: Cannot remove weak acids (CO₂, SiO₂)
Alkali Consumption: Regeneration efficiency decreases with incomplete alkali dosage
Organic Loading: Regular cleaning recommended for heavy organic loads
Thermal Stability: Avoid prolonged exposure to temperatures above 100°C
ADVANTAGES |

High Regeneration Efficiency: Require less alkali for regeneration compared to strong base resins.
Excellent Chemical Stability: Resistant to organic fouling and oxidative degradation.
High Capacity for Acids: Substantial capacity for mineral acid removal under appropriate conditions.
Economic Operation: Lower regeneration costs and longer service life in suitable applications.
Good Physical Stability: Robust mechanical properties with good resistance to osmotic shock.
PACKING |
25Liter Bag
25kg Bag
50kg Plastic Barrel

OUR FACTORY |





| WHY UMEK |
With 28 years in water treatment and 16 years of international market experience, UMEK delivers one-stop solutions trusted in over 120 countries for efficient and reliable results. As the largest industrial water treatment wholesaler in the north, backed by 30+ professionals and a unique culture of mentorship and excellence, we are committed to providing high-quality products and customized services.
We partner with top-tier suppliers like Runxin Valve and Pentair, ensuring certified products with strict quality control. UMEK also offers a value-driven environment, comprehensive training, and growth opportunities, empowering employees and achieving mutual success. Choose UMEK – your partner in expertise, innovation, and sustainable development!

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EXHIBITION |
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| FAQ |
A1. Why choose UMEK for industrial water treatment solutions?
Q: With 28+ years in water treatment and 16+ years of global expertise, UMEK combines innovation, certified quality, and tailored services. As the largest wholesaler in the north, we deliver trusted solutions across 120+ countries, backed by 30+ professionals and partnerships with industry leaders like Runxin Valve and Pentair.
A2. Are UMEK products certified for international standards?
Q: Yes. All products undergo strict quality control and comply with global certifications (e.g., ISO, CE, WRAS). Our partnerships with top-tier suppliers ensure reliability and performance in diverse industrial applications.
A3. Can UMEK provide customized water treatment solutions?
Q: Absolutely. We specialize in tailored services, designing systems to meet unique client needs. Our team collaborates closely with you to ensure optimal efficiency, cost savings, and compliance.
A4. How does UMEK ensure product quality?
Q: Every product is rigorously inspected, tested, and certified. We work exclusively with vetted suppliers like Runxin Valve and Pentair, adhering to international quality benchmarks at every production stage.
A5. What industries does UMEK serve internationally?
Q: We serve 120+ countries across sectors like manufacturing, energy, municipal water, and agriculture. Our solutions adapt to regional regulations, climates, and operational demands for seamless global delivery.
A6. Does UMEK prioritize sustainability in its solutions?
Q: Yes. Sustainability drives our innovation. We optimize water reuse, reduce chemical waste, and integrate energy-efficient technologies to support clients’ environmental and ESG goals.
A7. What post-purchase support does UMEK offer?
Q: Clients receive lifelong technical support, including system maintenance guidance, troubleshooting, and employee training. Our mentorship-driven team ensures your operational success long after installation