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Intelligent floating filters



HYDROAUTOMATIC GRAVITY FILTER

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The hydro-automatic gravity filters based on the polymer floating media is a superior alternative to heavy media filters in water treatment applications.

The two most important advantages of the hydro-automatic gravity filter are the floating capacity of the filtering media and the hydro-automatic backwash function, which bring along both an improvement of the overall working characteristics of the system and a significant reduction in capital, operational and maintenance costs.

Specific physical properties of the polymer floating filtering media (PFFM) made it possible to prolong the filtration cycle and to considerably reduce duration of the backwash process, thus bringing losses of treated water to the minimum.

The backwash process in units with polymer filtering media self-adjusts to changing contaminants loads in feed water without any operator's intervention. Therefore, the process produces stable and repetitive results.


Quality backwash of polymer filtering media is achieved without use of air and in a much shorter period comparing to sand media. During the backwash, the filter bed is expanded by 20-40%, and the combination of a downward gravity flow of water and upward movement of floating media produce a vigorous agitation/scrubbing effect resulting in the fast (up to 2 minutes) regeneration of the filtering media.

The polymer filtering media is chemically and physically stable, works in a wide range of temperatures and pH, and is very easy to handle and store.

The "automation" of the polymer media filtration process is based entirely on gravity force and difference of water levels with no electronic or moving parts involved. Therefore, the process is extremely reliable, durable and virtually maintenance-free.

Absence of additional equipment (pumps, compressors, etc.) in the polymer media filtration process leads to a small size of the filtration unit. Furthermore, the filtration unit itself does not consume any electricity. Electricity is supplied only to the feed pump (well pump in case of ground water).

Hydro-automatic floating filters can be fabricated in non-specialised conditions of an ordinary workshop. Only a few types of materials are required: carbon steel sheet (or plastic sheet), pipes, metal or plastic mesh, media - all of which are inexpensive and widely available. The process of fabrication is very simple and straightforward, and does not require highly skilled or specially trained labour. The small size and absence of electric components also contribute into the appreciably low fabrication costs.






 

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