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DESCRIPTION |
Phosphorus removal resins are a class of strong base anion (SBA) exchange resins specifically selected or specially formulated for the highly selective removal of phosphate anions (e.g., HPO₄²⁻, H₂PO₄⁻) from water. They function by exchanging phosphate ions for counter-ions (typically chloride or bicarbonate) attached to the resin's functional groups. Their key characteristic is a high affinity for phosphate, even in the presence of competing anions like sulfate or chloride, which is crucial for achieving low effluent concentrations.
Wastewater Treatment Plant (WWTP) Effluent Polishing: Used as a tertiary treatment step to meet stringent total phosphorus (TP) discharge limits (e.g., <0.1 mg/L) set to prevent eutrophication in receiving waters.
Industrial Wastewater Treatment: Effective for treating phosphate-laden streams from industries such as fertilizer production, metal finishing, food processing, and detergent manufacturing.
Agricultural and Urban Runoff Remediation: Deployed in packed columns or reactive barriers to treat diffuse-source pollution from farms or stormwater.
Water Reuse and Recycling: A reliable technology for removing phosphorus to high levels in advanced water purification trains for industrial or indirect potable reuse.
Landfill Leachate Treatment: Used to remove phosphorus and other contaminants from complex landfill leachate.
Note: These are general guidelines. Specific parameters must be confirmed with the manufacturer's data sheet for the particular resin.
1. Operating Conditions
Service Flow Rate: 2 - 10 Bed Volumes per hour (BV/h).
Influent P Concentration: Optimal for low to moderate concentrations (e.g., 1 - 10 mg/L) following secondary treatment.
pH Range: Effective in a wide range, typically pH 5 - 9. Efficiency may decline outside this range.
Operating Temperature: Up to 40°C - 50°C.
2. Regeneration
Regenerant: A concentrated salt solution is most common. Sodium Chloride (NaCl) brine at 5-12% is often effective and economical. For higher efficiency, a mixed NaCl/NaOH solution may be used.
Regenerant Dosage: 100 - 200 g NaCl per liter of resin.
Regeneration Flow Rate: Slow flow, typically 2 - 4 BV/h.
Contact Time: 30 - 60 minutes.
3. Rinsing
Rinse Flow Rate: Slow rinse followed by a fast rinse at service flow rate.
Rinse Volume: Approximately 2 - 3 Bed Volumes, or until the effluent conductivity and pH are close to the influent values.
4. Performance Indicators
Operating Capacity: Highly dependent on influent water chemistry. A typical range is 1.5 - 6.0 grams of P per liter of resin per run.
Breakthrough: The end of the service cycle is signaled when the effluent phosphate concentration reaches a pre-set limit (e.g., 0.1 mg/L).
5. Important Considerations
Competing Ions: High concentrations of competing anions, particularly sulfate (SO₄²⁻), can significantly reduce the phosphate removal capacity and shorten run times.
Suspended Solids: Pre-filtration (to < 10-20 µm) is critical to prevent clogging of the resin bed.
Organic Fouling: The presence of high Natural Organic Matter (NOM) can foul the resin, requiring pre-treatment or the use of specially designed resins.
ADVANTAGES |
Consistently Low Effluent Levels: Capable of achieving very low and stable phosphorus concentrations (< 0.1 mg/L), which can be challenging for biological or chemical precipitation methods alone.
Low Operational Cost at Scale: While the capital investment exists, the primary advantage is the low operating cost per treated volume. The resins are regenerable hundreds of times, minimizing chemical waste and consumable costs compared to single-use adsorbents.
Resistance to Fouling and Physical Degradation: These resins are typically macroporous, providing greater resistance to organic fouling and robust physical stability for long service life in challenging wastewater streams.
Selectivity for Phosphate: Engineered to have a higher selectivity for phosphate over common anions like chloride and sulfate, leading to higher efficiency and longer run times between regenerations.
Compact Footprint and Simplicity: Ion exchange systems have a relatively small footprint and can be easily automated, offering a simple, space-efficient solution for adding polishing capacity to existing plants.
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
Water Tech 2023
Water Tech 2024
Canton Fair
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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