Iron and Manganese  (plus Aluminum and Hydrogen Sulphide)

Iron and Manganese can be removed from water by using a media which encourages reaction between the contaminant and oxygen present in water. This reaction forms an insoluble precipitate which can then be physically filtered out by the media bed. The media acts “catalytically” which means that although it triggers the reaction it is not used up as part of the process, thus giving long life from a single filter. A choice of media are available depending upon the
 exact chemicals make-up of the water to be filtered. The media most commonly used are:-
BIRM – which given good removal at a relatively low cost. Generally suited to waters that would have been considered hard in nature, its performance is adversely affected by the presence of chlorine, organic contaminants and some
chemical treatments.
FILOX R, has a much higher level of activity than BIRM, and is more suitable across a greater range of waters, it is chlorine resistant and can be used to help in the removal of hydrogen sulphide.
MANGANSES GREENSAND, generally only used in industry for iron and manganese removal, as it requires chemical regeneration (with Potassium Permanganate) to restore its activity.

Turbidity Removal

General turbidity removal at high flows can be achieved satisfactorily down to low micron levels using a multimedia filter with a layered bed of gravel, filter sand, garnet and anthracite or Filter AF media. Other specialist media may be needed to be added to the filter bed to improve polishing with certain types of water.
System Management & Backwashing
In order to remove accumulated deposits from the filter bed, the water flows through the filter is reversed ( backwashed) water is run to drain at a high flow rate to separate the deposits from the filter media. The control valve completes the backwash cycle automatically at the intervals and times set during the installation. The backwash and rinse cycle takes approximately 20 minutes, although these can be altered to suit individual conditions.

Call now to speak to one of our advisors for more information on 01937 844211.