How a Protein Skimmer works

Clarity™ consists of one integrated unit that can be installed either as a stand-alone unit or as an integrated part of a larger recirculation system. In both cases it performs several distinct functions:

Reduces nitrate level and total ammonium nitrogen

Aeration of water, restoring the right balance of O2, CO2 and N2 in the water

Formation of foam containing organic compounds (DOC), ammonium and nitrogen

Collects foam in the patented foam collection unit

Functions 1 – 3 occur in the trickle tower column, and function 4 is carried out in the patented foam collection unit.

Together, these functions result in a highly effective system for reduction of organic waste and result in high-purity water conditions.

In a recirculation system, which is commonly used at fresh water smolt producing facilities, the protein skimmer is installed between the bio filter and the aeration process. In addition to the skimmer’s distinct functions described above, it has another effect when installed in a recirculation system: It enhances the bio filter’s capability of removing particles. Because of this, it also increases the filter’s capability of transforming ammonia, which has a positive effect on the overall water condition. This allows the fish farmer to increase the fodder intensity and the economic returns.

The following illustration provides an overview over where the implementation of Claritys Protein Skimmer takes place in a recirculation system.