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Difference between revisions of "Drum Tray Filters"
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[[File:Drum_Tray_Filters_01.jpg|thumb|right|Drum Tray Filter]] | |||
[[File:Drum_Tray_Filters_02.jpg|thumb|right|Double Drum Tray Filter]] | |||
[[File:Drum_Tray_Filters_03.jpg|thumb|right|Structure of Drum Tray Filter]] | |||
The '''drum tray filter''' is made to fit most open top drums. Different grades of filter fabric are available; unit comes in enameled steel with a powder-coated basket. | |||
==Working Principle== | |||
It works with the below principles | |||
-water gravity flows into the rotating drum | |||
-rotating filter element collects floating debris, solids and fibres | |||
-screen is cleaned with directed spray nozzles, filtered water is used for this purpose | |||
-dirt is collected in the integrated collection tray; equipped with a dewatering screw | |||
-collected dirt is forced out of the collection tray with a screw and subsequently collected in a suitable discharge system | |||
-water flows out of the filter through the lower placed outlet | |||
==Application area== | |||
It is used in the industries related to | |||
-intake water; river-, lake- & seawater | |||
-waste water treatment, effluent polishing in municipal and industrial WWT plants | |||
process water, removal of organic and fibrous solids | |||
-desalination plants | |||
-membrane filtration plants | |||
-UV – pre filter | |||
-power plants | |||
-communal and industrial waste water treatment plants | |||
-pulp & paper processing | |||
-food processing, re use of washing water | |||
-irrigation | |||
-aqua culture, fish farming | |||
==Advantages== | |||
The Drum Tray Filters have the following advantages | |||
-efficient and continuous removal of organic matter and light floating solids from river-, lake and sea water | |||
-completely automatic operation | |||
-easy installation | |||
-separation down to 20 micron | |||
-exchangeable elements | |||
-no pressure required, gravity fed system | |||
-low energy use, limited maintenance and labour requirement, low operational costs | |||
-level controls initiate motor functions only when required | |||
-no process interruptions | |||
-unlimited flow capacity in small footprint | |||
-efficient and high reduction of suspended solids | |||
-reduction of BOD5 and COD | |||
-reduction of phosphor, ammonia, nitrogen value | |||
==Video== | |||
<youtube>pusceOjVtBs</youtube> | |||