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Zero Liquid Discharge technology - water purification by F Cubed

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article image Zero Liquid Discharge technology - water purification by F Cubed

Carocell technology from F Cubed Australia features Zero Liquid Discharge technology. This converts waste brine into drinking water and valuable fractionalised salts and minerals.

Carocell panels run as a continuous operation with feed water travelling slowly down individual panels. During every pass approximately 30 - 40% of the flow is extracted as distilled water, thereby increasing the salt concentration of the waste water at every pass.

The heated waste water is then pumped to the next series of panels where the same process is repeated. The wastewater is treated as many times as required to bring the salt concentration up to a density of around 1.2 to 1.25.

The remaining fluid then goes to the salt production stage for NaCl crystallization. In the case of sea water the waste liquid after NaCl production will be approximately 30% MgCl which can be sold as a liquid or crystallized in a subsequent panel. Other salts and metals drop out in earlier stages and may also be harvested if they are of commercial value.

Additionally, sophisticated geometrical design allowing for easy maintenance, optimum performance and a self-controlling natural convection loop enabling widely superior energy recovery.

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