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High throughput nut shell filters for purification of
oily process water and industrial wastewater.
Hydromation Nut Shell Filter Cycle
Operation
Engineered and supported to meet
your needs. Hydromation nut shell filters provide operation with pressure,
vacuum or gravity flow to meet your specific onsite requirements. Engineered
and built-to-spec units are also available. Petreco provides worldwide
engineering, lab analysis, installation, and service support.
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Filtration
Cycle
The Clean Discharge valve "B" is
opened.
Dirty liquid enters through the
top of the vessel, flowing through the media and discharging through the clean
water discharge "B".
Solids are captured in the media
bed. |
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Agitation Cycle
The Clean Discharge
valve "B" is closed.
The Filter By-Pass
valve "C" is opened and the agitator is started.
The media bed is
agitated freeing the solid particles that the media has captured.
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Backwash Cycle
The Backwash Discharge
Valve "A" is opened, and backwash begins.
A small amount of
liquid is used to carry the solid particles out of the filter through the
Backwash Discharge. |
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Delay
Cycle
All valves are closed and the
Agitator is stopped.
The media bed is
allowed to settle down before proceeding. |
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Recirculation Cycle
The Recirculation
Discharge Valve "D" is opened.
The media bed is packed
down and filtration has begun. Recirculation allows for dirty water to be
cleaned from the support screens and clean water discharge piping of the
filter. |
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Cycle
Times
This chart shows the
approximate cycle times and valve positions during each cycle.
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