Adsorption

Bucher Unipektin adsorption- and ionexchanger are built by our sister company Bucher Alimentech Ltd. (New Zealand). The company obtains an excellent reputation for her competences covering various technologies.

Adsorber

Clarified or pulp reduced juice is pumped through an adsorbent polymer resin in a fixed bed. Selected components of the juice are adsorbed onto the vast surface of the resin matrix by physical interactions on the molecular level. Subsequently the resin is regenerated with bases and acids and prepared for the next juice process cycle. Before regeneration, the systems for cloudy juices transfer the resin into a unique external washing unit thereby effectively removing particles trapped in the resin bed.

Depending on the product and process requirements the adsorption systems can be operated multi-staged, in parallel or in series thus enabling e.g. a continuous process. Bucher is independent of resin manufacturers, ensuring that the optimum resin choice is used in each application.

Ion exchanger

Clarified juice is passed through vessels filled with selected combinations of ion exchange resins. Charged juice components are retained on the respective resin by ionic forces, releasing an equally charged ion (e.g. H+, OH-) into the product. When the deionising capacity of the resins is exhausted, the juice is displaced from the columns and the resins are independently regenerated with acids, bases or salts, preparing them for the next juice process cycle.
Optional adsorptive polymer vessels can be added for improved colour and organic molecules reduction.
Depending on the product and process requirements the ion exchange systems can be operated multi-staged, in parallel or in series. This allows e.g. a continuous process. Bucher is independent of resin manufacturers, ensuring that the optimum resin choice is used in each application.