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DESCRIPTION |
Denitrification Ion Exchange Resin is a specialized strong base anion exchange resin specifically engineered for the selective removal of nitrate (NO₃⁻) and nitrite (NO₂⁻) ions from water. These resins feature functional groups with high affinity for nitrate ions, allowing them to preferentially remove nitrate over other common anions like sulfate and chloride.
Drinking Water Treatment: Removal of nitrate from groundwater and municipal water supplies to meet health standards.
Municipal Wastewater Treatment: Advanced treatment for nitrate removal to meet stringent discharge regulations.
Agricultural Runoff Treatment: Treating nitrate-contaminated water from agricultural drainage and irrigation return flows.
Industrial Wastewater Treatment: Removing nitrate from wastewater in fertilizer, explosives, and chemical manufacturing industries.
Landfill Leachate Treatment: Treating high-nitrate leachate from municipal solid waste landfills.
Type: Strong Base Anion Exchange Resin (Nitrate-Selective)
Matrix: Polystyrene-DVB (Gel or Macroporous)
Functional Group: Quaternary Ammonium (Specialty Formulation)
Ionic Form As Shipped: Cl⁻
Total Exchange Capacity: ≥1.0 eq/L
Nitrate Selectivity Coefficient: >4 (relative to chloride)
Moisture Retention: 50-60%
Particle Size Range: 0.3-1.2 mm
Shipping Weight: 670-720 g/L
Specific Gravity: 1.06-1.10 g/ml
Uniformity Coefficient: ≤1.6
Maximum Operating Temperature: 60°C (OH⁻ form)
Note: These are general guidelines. Specific parameters depend on the resin type and water chemistry.
1. Operating Conditions
Service Flow Rate: 5 - 20 BV/h
Optimal pH Range: 6 - 8
Operating Temperature: 5 - 40°C
Influent Nitrate Concentration: Effective for a wide range, typically 10 - 100 mg/L NO₃-N
2. Regeneration
Regenerant: Sodium Chloride (NaCl) brine
Regenerant Concentration: 8 - 12%
Regenerant Dosage: 150 - 300 g NaCl/L resin
Regeneration Flow Rate: 2 - 4 BV/h
Contact Time: 30 - 60 minutes
3. Rinsing
Rinse Flow Rate: 5 - 15 BV/h
Rinse Volume: 2 - 4 Bed Volumes
Rinse Endpoint: Effluent chloride concentration matches influent level
4. Performance Indicators
Operating Capacity: Highly dependent on water composition; typically 0.5-1.5 eq/L
Nitrate Breakthrough: Defined by target effluent concentration (e.g., 10 mg/L NO₃-N)
Regeneration Efficiency: 70-90% depending on brine dosage and contact time
5. Important Considerations
Competing Anions: High sulfate concentrations can significantly reduce nitrate removal capacity.
Biological Growth: Potential for bacterial growth in resin beds; periodic disinfection may be required.
Spent Brine Management: Regeneration waste contains high nitrate and salt concentrations requiring proper disposal.
Pre-treatment: Filtration recommended if suspended solids are present.
ADVANTAGES |

High Nitrate Selectivity: Specifically formulated to preferentially remove nitrate ions even in the presence of competing anions.
Consistent Low Effluent Levels: Capable of reducing nitrate concentrations to below regulatory limits (typically <10 mg/L as N).
Regenerable Operation: Can be efficiently regenerated with sodium chloride brine, allowing for multiple use cycles.
High Exchange Capacity: Substantial nitrate removal capacity ensures economical operation.
Proven Technology: Well-established process with predictable performance in various applications.
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 |
Water Tech 2023
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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