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EVERZIT - Model N -Natural Anthracite for Single and Dual Media Filtration
EVERZIT® N is a natural anthracite filter material produced in Germany. Especially favorable geological processes formed anthracite with a particularly special structure. Our unique refining process of cleaning, crushing and sieving ensures our capability to convert anthracite to premium-quality filter media for single-layer and multi-layer filtration. It has a proven track record spanning more than 45 years in successful water treatment worldwide.
EVERZIT® N has by nature ideal characteristics for a filter media:
- High abrasion resistance
- Withstands high-speed backwashing without media wash-out
- Optimum separation of filter layers during backwashing
- Good retention, even of particulates with high specific gravity
- No adhesion of precipitated ferrous- and manganese compounds
- No silicic acid leach-out into water
Dual media filtration avoids conventional "surface-only" filtration as found in sand filter beds. Particulate retention occurs throughout the media (in-depth filtration) which offers considerable advantages, i.e. lower investment costs and reduced operating costs:
- longer run time between backwashes
- reduced pressure drop
- higher filtration speeds feasible
- reduced backwash-related downtime and costs
- higher treatment capacity
- improved filtrate quality
- Drinking water treatment
- Sea water desalination
- Wastewater treatment
- Water treatment in swimming pools
- Process water treatment
- 50 litre PE bags on Euro or one-way pallets
- 1.65 m³ big bags
- Bulk transport in silo trucks
- Carbon: approx. 92.0 %
- Ash: approx. 5.5 %
- Volatile matter: approx. 8.5 %
- Specific density: approx. 1.35 - 1.55 g/cm³
- Bulk density: approx. 700 kg/m³
- Hardness: 3 - 4 Mohs
- Hardgrove (Hardgrove Grindability Index): approx. 44° HGI
Grain sizes
I) 0.8 - 1.6 mm
II) 1.4 - 2.5 mm
III) 2.0 - 4.0 mm
IV) 3.5 - 7.0 mm
Other grain-size ranges can be supplied in accordance with your specific requirements.
Quality and purity
EVERZIT®N meets the requirements of the following standards and regulations:
- EN 12909
- German Drinking Water Ordinance 2001
- AWWA B 100-16
- DIN 19643
- DVGW work sheet W 213
- ÖNORM 6216