Drum Tray Filters

Drum Tray Filter

Double Drum Tray Filter

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