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RESIN for NITRATES ANION EXCHANGE Purolite A520E
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Purolite A520E is a macroporous, strongly basic anion exchange resin (anionite) in chloride form (Cl-), designed for the removal of nit Read moreShow less
Purolite A520E is a macroporous, strongly basic anion exchange resin (anionite) in chloride form (Cl-), designed for the removal of nitrates from water. It is intended for home and industrial de-nitrification systems with a structure similar to typical water softeners. The resin is regenerated with a salt solution (NaCl). The product has a PZH certificate for water treatment for drinking purposes. Packaging: 1 liter.
Specifications
A520-1L
In stock
- Application
- Industrial
- Filter media
- Ion-exchange resin
- Media volume
- 1 l
- Model
- Purolite A520E
- Product type
- Filter media / resin
- Resin volume
- 1 l
Description
Purolite A520E is a specialized anion resin for removing nitrates from water, designed for use in denitrification units built similarly to typical devices such as a water softener. This efficient water treatment media works well in both domestic and industrial installations. Regeneration is carried out with a NaCl salt solution, making operation practical and familiar to users of water filtration systems and devices operating similarly to a classic water filter in pressure-based systems.
Purolite A520E – an anion resin for effective nitrate removal
Purolite A520E is a macroporous, strongly basic anion exchange resin in chloride form (Cl-), specifically designed for the selective removal of nitrates from water. The media is made of hard, clear, spherical beads and stands out with high working capacity, which makes it suitable for drinking water denitrification systems and installations intended for contact with food.
The resin is designed for use in domestic and industrial denitrification units whose construction corresponds to typical water softeners. As a result, it can be used in solutions where predictable operation, convenient regeneration, and stable performance parameters of the entire water treatment system are important.
Main benefits
- effective removal of nitrates from water,
- macroporous, strongly basic anion resin with high capacity,
- Cl- ionic form intended for use in denitrification units,
- application in domestic and industrial installations,
- suitable for drinking water treatment and systems in contact with food,
- regeneration with common rock salt (NaCl) solution,
- operation similar to systems working like a standard water softener,
- PZH certification for water treatment intended for consumption purposes,
- 1 liter package – convenient for media replenishment or servicing.
Application
Purolite A520E is used wherever it is necessary to reduce the nitrate content in water. The media performs well in denitrification units used in homes, commercial facilities, and industrial installations. Due to the structural similarity of the devices to classic softeners, the resin can be implemented in proven pressure systems used in modern water filtration systems.
The product can operate as part of a specialized water treatment system where a standard reverse osmosis filter, osmotic filter, reverse osmosis system, or reverse osmosis is not the only or final solution for the entire installation. In practice, A520E is a good choice for dedicated denitrification units requiring a regenerable ion exchange media.
Construction and properties of the media
The resin is based on a macroporous polymer matrix made of styrene with DVB. This structure supports stable operation of the media and enables its use in systems intended for long-term operation. The beads have a spherical, transparent form, and the high sphericity promotes uniform flow through the bed.
Purolite A520E is a high-capacity media in the form of beads. The additional purification process used during production allows this resin to be used in installations intended for drinking water treatment and in systems in contact with food.
Physical and chemical characteristics
- polymer matrix structure: macroporous styrene with DVB,
- functional group: R-N-R3+Cl-,
- ionic form: Cl-,
- appearance and physical form: clear spherical beads,
- sphericity: min. 95%,
- particle size: 16-50 mesh, wet,
- bead size range: +1.2 mm < 5%, -0.3 mm < 1%,
- uniformity coefficient: max. 1.6,
- moisture content, Cl- form: 52-56%,
- bulk density, Cl- form: 680-730 g/l (42-45.5 lbs/cu.ft),
- total ion exchange capacity: 1.0 eq/l min,
- pH range: 0-14.
Operation and regeneration
After the working capacity of the resin is exhausted and nitrates appear in the effluent, the media is renewed by regeneration with a common rock salt solution. This process is analogous to regeneration known from other ion exchange media operating in devices built similarly to softeners. The achieved working capacity depends largely on the amount of salt used for regeneration.
The resin is regenerated with NaCl solution. To maintain proper operation of the denitrification unit, the recommended regeneration, rinsing, and flow parameters must be followed. The working capacity obtained depends on the salt dose used during regeneration.
Suggested operating conditions
- maximum temperature: max. 100°C (212°F),
- working ion exchange capacity: ≥ 0.3 meq/l (wet),
- regeneration: NaCl,
- regenerant concentration: 8-10% NaCl; resin vol. = 2-3 : 1,
- flow rate: 4-6 m/h,
- contact time: 30-60 minutes,
- slow rinse flow rate: 15-25 m/h,
- slow rinse time: approx. 25 min.,
- service flow rate: 15-25 m/h.
Package contents
A520E anion resin is packed in bags and contains 1 liter of resin. One package corresponds to 1 liter of ion exchange media.
Technical specification
| Product type | Macroporous, strongly basic anion resin for nitrate removal |
|---|---|
| Model | Purolite A520E |
| Ionic form | Cl |
| Polymer matrix structure | Macroporous styrene with DVB |
| Functional group | R-N-R3+Cl |
| Appearance and physical form | Clear spherical beads |
| Sphericity | Min. 95% |
| Particle size | 16-50 mesh, wet |
| Bead size range | +1.2 mm < 5%, -0.3 mm < 1% |
| Uniformity coefficient | Max. 1.6 |
| Bulk density, Cl form | 680-730 g/l (42-45.5 lbs/cu.ft) |
| Total ion exchange capacity | 1.0 eq/l min |
| Working ion exchange capacity | ≥ 0.3 meq/l (wet) |
| pH range | 0-14 |
| Maximum temperature | Max. 100°C (212°F) |
| Regeneration | NaCl |
| Regenerant concentration | 8-10% NaCl; resin vol. = 2-3 : 1 |
| Flow rate | 4-6 m/h |
| Contact time | 30-60 minutes |
| Slow rinse flow rate | 15-25 m/h |
| Slow rinse time | Approx. 25 min. |
| Service flow rate | 15-25 m/h |
| Certification | PZH for water treatment intended for consumption purposes |
| Intended use | Domestic and industrial denitrification units built similarly to typical softeners |
FAQ
What is Purolite A520E resin used for?
Purolite A520E is used to remove nitrates from water. It is a specialized anion exchange media used in denitrification units for domestic and industrial installations.
In what devices can this media be used?
The resin is intended for denitrification units built identically or very similarly to typical domestic water softeners. This makes it well suited for classic pressure-based water treatment systems.
How is Purolite A520E regenerated?
The media is regenerated with a NaCl solution, i.e. common rock salt. Proper regeneration has a direct impact on the resin's recovered working capacity.
What does the resin's working capacity after regeneration depend on?
The achieved capacity depends largely on the amount of salt used for regeneration. It is also important to maintain the recommended regenerant concentration, contact time, and rinsing and flow parameters.
Is Purolite A520E suitable for drinking water?
Yes, the product has PZH certification for water treatment intended for consumption purposes. In addition, the resin can be used in installations in contact with food.
What is the form and appearance of the media?
Purolite A520E is supplied in chloride form (Cl-) and appears as clear, spherical beads. The minimum sphericity is 95%.
What is the packaging of the product?
The product is packed in a bag and contains 1 liter of resin. One package corresponds to 1 liter of ion exchange media.
Does this product replace a reverse osmosis filter?
Not always. Purolite A520E is a dedicated media for nitrate removal in denitrification units. A reverse osmosis filter, osmotic filter, or a complete reverse osmosis system works differently and may serve a different role in the water treatment installation.
What are the recommended operating parameters of the media?
The recommended parameters include NaCl regeneration, 8-10% NaCl regenerant concentration with a resin volume ratio of 2-3 : 1, flow rate of 4-6 m/h, contact time of 30-60 minutes, slow rinse flow rate of 15-25 m/h, average slow rinse time of 25 minutes, and service flow rate of 15-25 m/h.