Slag discharge capacity and chemical properties of fish farm biofilter media

- Jan 16, 2019 -

The slag-removing ability of the fish farm biofilter media of the fish farm refers to the ability to remove the filter cake from the surface of the medium by means of the filter cake's own strategy or compressed air blowing after mechanical filtration. Continuous filters such as drums, turntables, and belt vacuum filters are prerequisites for maintaining normal operation.

In the filtration process of the fish farm biofilter media, a small amount of filter residue particles are blocked in the pores of the medium, and the particles must be washed away from the pores of the surface of the medium by rinsing, purging, etc. after the end of the unloading process in each operation cycle. To maintain the filtration efficiency and performance of the medium. The regeneration performance mainly depends on the constituent materials of the filter medium and the weaving and processing methods (manufacturing processes).

The fish farm biofilter media will have various chemical properties due to the various materials processed in the filtration process. They are acidic, alkaline, strong oxidizing, organic solvents, etc. during operation. Filter at the temperature.

This requires the selected filter media structural material to have good chemical stability, chemical resistance, temperature resistance, and microbial resistance in the material to be treated.

In general, polypropylene fibers have good acid resistance. Alkali resistance and oxidant resistance, polyethylene fiber has stability to acid and alkali solution at room temperature, and polyester material has good acid resistance.