Biofilter media products
We supply a range of biofilter media. This product is sold by the cubic metre.
See commercial use of this media - video
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Floating biofilter media
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Picture
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Model
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Specification (mm)
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Specific surface area (m2/m3)
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Density (kg/m3)
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ECOBM-1 (4 rooms) high quality- modified material
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Φ10*10
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≥1200
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125
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ECOBM-2 (7 rooms)
high quality- modified material
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Φ13*10
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≥1000
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105
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ECOBM-3 (4 rooms) high quality- modified material
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Φ15*15
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≥760
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105
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ECOBM-4 (19 rooms) high quality- modified material
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Φ25*10
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≥620
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100
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ECOMAX-1 (4 rooms) No pure plastic
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Φ1Φ*8
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≥900
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160
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ECOMAX-2 (4 rooms) No pure plastic
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Φ10*10
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≥800
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150
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ECOMAX-3 (6 rooms) not pure plastic
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Φ12*8
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≥750
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150
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ECOMAX-4 (64 rooms) not pure plastic
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Φ28*5
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≥550
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90
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ECOMAX-5 (25 rooms) not pure plastic
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Φ25*12
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≥550
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100
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ECOMAX-6 (19 rooms) not pure plastic
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Φ25*12
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≥500
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95
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BFCL01 (4 rooms) Pure plastic
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Φ12*7
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≥750
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120
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BFCL02 (4 rooms) Pure plastic
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Φ11*7
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≥800
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140
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BFCL03 (5 rooms) Pure plastic
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Φ10*7
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≥850
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150
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BFCL04 (6 rooms) Pure plastic
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Φ14.5*10
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≥600
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120
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BFCL05 (1 room) Pure plastic
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Φ12*8
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≥700
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121
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These products are suited to fluidized or moving bed tank systems. These are also called “Biofilm Reactor”, “moving bed reactors (MBBR or MBR)” systems, polyethylene media and are used for the treatment of water and wastewater. Similare media are MB3 media, Kaldnes and EEC media. BFCL03 can support about 16 kilograms of fish per 50 liters of media, where fish are fed 1.5% of their body weight per day. Alternatively, a maximum of 0.75 kilogram of 40% protein food per 50 litres of media per day. A safer measure is a maximum of 0.25 kilograms of food per 50 litres used, in order to ensure the best possible water parameters are achieved.
The moving bed process is ideal for COD and BOD reduction as well as nitrification and denitrification. In nitrifying applications, use a blower to continuously circulate the elements, while simultaneously oxygenating the water and stripping the CO2. The self-cleaning action allows for the exfoliation of the older, less active bacterial layer and eliminates the need for backwashing.
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Model
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Size (mm)
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Density (g/cm3)
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Specific
Surface
Area (m2 /m3)
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Biofilm formation
duration (days)
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Nitrification
efficiency
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Preferential
temperature (oC)
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Services
life (years)
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BFCLO1
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Φ12 x 1 0
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1.3
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>800
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5-15
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750
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<65
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>10
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BFCLO2
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Φ11 x 1 0
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1.4
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>800
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5-15
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800
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<65
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>10
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BFCLO3
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Φ10 x10
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1.68
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>900
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5-15
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850
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<65
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>10
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BFCLO4
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Φ14 x 10
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1.25
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>650
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5-15
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600
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<65
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>10
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BFCL05
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Φ25 x 1 2
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>0.95
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>500
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5-15
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400
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<65
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>10
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Self cleaning due to turbulence
Due to the turbulent movement of the biofilter media in suspension, the filter medium is self-cleaning, requiring no maintenance. This allows the filter to reach optimum effectiveness without the disturbance of periodic maintenance, avoiding unnecessary loss of bacteria within the filter. This allows stable, low levels of ammonia and nitrite within the water.
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BFCLO1
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BFCLO2 (This is similar to Kaldness K1 media)
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BFCLO3 (This is similar to Kaldness K1 media, but with 5 radials). This can support about 16 kilograms of fish per 50 liters of media, where fish are fed 1.5% of their body weight per day.
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BFCLO4
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ECOMAX-6
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The first few of these products are similar to the patented Kaldnes media used in fish farming and waste water treatment. The design creates an environment for effective nitrification to take place. Water flow is created by aeration that circulates the media throughout the vessel. This high surface area of these products translates into a small physical area needed for the biofiltration unit.
Due to vigorous mixing of the Kaldnes-like media through aeration, the media is self-cleaning, requiring no maintenance. This allows the filter to reach optimum effectiveness. Periodic maintenance is not necessary, preventing the unnecessary loss of bacteria and subsequent ammonia and nitrite spikes in the system.
Media volume needed
With good turbulence and aeration, a feed rate of between 0.25kgs and 0.75kgs of 40% protein food per day requires 50 litres of media.
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