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Hippowash has installed a Classic vehicle washing system at Cemex’s asphalt plant in Cumbria to stop vehicles taking mud and debris onto public roads.

Up to 50 vehicles enter or leave the coating plant every day.

Planning consent stipulated the plant must have a vehicle washing system to ensure surrounding roads remain clean.

A new concrete road was built for the Classic washer, which has a six metre wash platform constructed from inverted steel angle.

The vehicle wheels revolve twice over this wash section.

The wash system is automatic: vehicle detection sensors start the main wash pump as vehicles approach the wash.

Up to 1,600 litres of water a minute are delivered through 130 brass jet heads, which clean the wheels and under-chassis as the vehicle passes, with mud and debris-laden water falling into the integral sump.

As vehicles exit the wash and pass the second sensor, the main pump automatically switches off.

The sump pump grinds up the solid material and sends it with the dirty water to the external waste-water clarifying system.

The lamella design removes more than 95 per cent of solids, down to 15 microns, leaving clean water for the next wash cycle.

The settled sludge can then be easily disposed of by the hoppers at the bottom of the clarifier.

This closed-loop water system and the galvanised side screens minimise water wastage and remove the need for expensive and water-hungry lagoons.

The Hippowash Classic uses an inverter-driven main wash pump, which saves up to 50 per cent of energy compared with traditional motor-starting methods and allows unlimited pump startups.

The power to the main wash pump can be reduced during periods where only lighter dust-suppression type washing is required.

Typical annual savings in energy costs can be in excess of GBP10,000.


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