Biofilters recirculate aquaculture water and support the further growth of aquaculture products without excessive, environmentally unsustainable water demands.
We design and supply 5 different types of Aquaculture Biofilters:
Utilizing polyethylene micropore disk media with ultra high protected surface area. Highly effective and stable, compact,very low head, very economical media. Integrates CO2 stripping.
MOVING BED BIOFILTER
Utilizing conventional plastic media, agitated using air. Highly effective and stable.
Sand media fluidized by water flow. Highly effective, low cost media, higher pumping head required.
TRICKLE FILTER BIOFILTER
Passive filters with and without countercurrent air flow. Simple and effective, requires large area.
Multi-cell biofilters have automatic carbon source dosing. Bacteria are first starved of oxygen, then with the addition of supplemental carbon source remove the O from NO3. Carbon addition is controlled using an ORP sensor feedback loop.