02 6260 1888 | 10 Raws Cres, Hume ACT 2620 Australia

Self-Cleaning Sand Filter With Zero Discharge Package

The Model 475 consists of the Hyperzone™ Sand Filtration System (Model 481/482), which includes an ozone disinfection package, and a Cascading Strainer (Model 290).

 

As contaminated liquid enters the sand filter, the debris is separated from the liquid. This is accomplished by the debris becoming entrapped within the downward-flowing sand media. The cleaned liquid travels up through the sand bed. As the cleaned liquid travels upward, ozone gas
(03) is injected to disinfect both the liquid and sand media. The clean, disinfected liquid flows into the outlet piping and continues down the process piping line.

 

The downward flow of the sand moves the entrapped debris to a fluidized bed at the bottom of the sand bed. Pressurized air lifts and separates the debris from the liquid and sand. The debris, liquid, and sand moves through the transfer section and into a fluidized two-stage separator.
One hundred percent of the debris laden wash reject liquid flows out of the sand filter to the Cascading Strainer (Model 290) for further filtration, while the clean sand is introduced back into the sand filter to use for further filtration.

 

The Model 290 separates the debris from the liquid at a predetermined micron level. The liquid is contained in the sump of the strainer and pumped to a bag filter. The debris flows down the wedge-wire screen to a debris catcher where the debris can be removed for disposal.

 

The liquid being pumped from the sump will be transferred to a bag filter that houses the MagnaFilt Bag that will remove all ferrous materials and other contaminates to the predetermined micron level. The liquid is then directed back to the sand filter for re-processing and the cycle is completed with no discharge of liquid.

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