Autotrophic Denitrification ADN

 
autotrophic denitrification filter ADN 600 with energy saving circulation pump

Function of the Filter
Advantages of the AquaCare ADN Filters
Technical data

Function of the Filter

The ADN filter is compact de-nitrification system for fresh and sea water. On the sulfur granules specialized autotrophic bacteria will grow, "eat" the sulphur and respire the nitrate. Organic substances are not necessary. The AquaCare ADN filter has a build in automatically driven flushing system to prevent blocking the filter bed. Every time you can see the condition of the filter bed because the main tube is made of transparent PETG. The de-aeration is made with the water outlet. The filter is equipped with modern high-efficiency pump and an electronical control.

Spülvorgang des ADNs

Advantages of the AquaCare ADN Filters
  • stable nitrate reduction without complicated measuring technique
  • compact design
  • high-efficiency circulation pump with controler and timer programms for flushing
  • pass meters for water inlet flow
  • transparent housing for optical control of the filter

Technical data:

Model ADN 400 ADN 600 ADN 1000 ADN 1500
Picture  
Order number
 301-041 301-061 301-101 301-151
Volume in litres
 70 200 480 1150
Maximum aquarium size  1) in m3 75 200 500 1000
Maximum daily elimination in kg N/d 3)
in kg protein / d 4)
in kg food / d 5)		 1.0
6.3
10.5		 3.0
19
31.3		 7.2
45
75		 16.8
105
175
Total height in cm 115 130 170 130
Foot print size, wide x depth in cm 115 x 50 140 x 70 200 x 100 230 x 160
Materials PVC gray and crystal clear PETG, NBR sealing, stainless steel screws
Connectors inlet / outlet
 d25 / d40 d50 / d50   d63 / d63  d140 / d140
Drain d20  d25 d32 d40
Electrical connection
 230 V, 50 Hz 
Maximum power consumption (during flushing)
 0.32 kW 0.5 kW 1.5 kW 4.4 kW
Typical  consumption (normal operation)
   0.20 kW    
Filter material sulphur granules, size 3-5 mm, purity 99,8%
Recommended water flow in l/h 200...900 600...2500 1500...6000 3600...14000
Transport weight in kg 160  400  900  2200
Operation weight in kg 260  500  1300 3800
pH value in outlet water2) approximal 0.5 to 1.0 lower than inlet water (depending on N-load)
Maximum operation pressure 0.1 bar (a free outlet is necessary)
Redox (ORP) sensor connector for all sensors with 12 mm diameter

1) depending on food input; the values are for normal aquaristic tanks;
2) depending on buffer capacity (KH value) and nitrate concentration;
3) at 50 mg/l Nitrate aquarium concentration, 20°C;
4) calculated with 16% N in protein;
5) calculated with 60% Protein in dry mass

Details