BELT FILTERSharifah Nur Adila bt Syed Nasir55102215010

BELT FILTER

What is Belt Filter???Belt Press Filter or Belt filter press An industrial machineSolid/liquid separation processes Dewatering of sludges (chemical

industry), mining and water treatment

Used in production of apple juice, cider and winemaking

How Belt Filter works??? Before sludge enters the press for dewatering with an

emulsion polymer flocculant that helps form stronger flocs. A transfer pump will drops the sludge onto a preliminary dewatering belt (free water molecules separate by gravity and fall into a collection trough).

Sludge is conveyed along the belt, ploughs roll it around to help water drain out. A guide plates will position the sludge towards the middle of the belt and ensure nothing is squeezed out the side of the filter. A second gravity thickener will repeats the process before sludge is fed into a pressing zone.

How Belt Filter works???

At the pressing zone, sludge is sandwiched and squeezed between two belt filters which slowly convey over and under rollers that force excess water out of the sludge and through the filter mesh.

Finally, the pressed sludge is scraped off the belt and collected in a bin. All filtrate and wash water is captured and transferred back to the front of the wastewater system for re-processing.

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Advantages of Belt Filter  belt filters use relatively lower pressures  belt filters tend to make less noise and have much quicker

startup and shutdown times Belt filters are considered simple and reliable, with good

availability, low staffing, easy maintenance and a long life  high capacity throughput, as it is designed to handle excess

capacity.  low initial costs low energy running costs,