CARBON FILTRATION

WGSI's backwashing carbon filters use porous Bituminous coal carbon for the removal of tastes, odors, chlorine, color and other organic materials from water. The carbon media is durable for long service life. Carbon filters require periodic backwashing to eliminate accumulated suspended matter, remove precipitates, and regrade the filter bed.

The most common use for carbon filters is the removal of undesirable taste and odor present in chlorinated water supplies. The carbon media removes chlorine from city water supplies.

BIRM FILTRATION

Birm is a granular filter media that is used for the reduction of dissolved iron and/or manganese from raw water supplies. Birm acts as a catalyst to precipitate the iron compounds so that they are easily filtered. The media is then cleaned by an automatic backwashing cycle. Birm does not require chemicals for regeneration, and only needs periodic backwashing depending upon the concentration of iron in the feed water. Birm is not consumed in the iron removal operation and has a long life. The feedwater should have a pH of greater than 6.8, and dissolved oxygen should be at least 15% of the iron content.

Birm filters provide a simple, cost-effective method of removing iron and manganese from well water supplies.

SEDIMENT FILTRATION

WGSI's backwashing sediment filters use either a aluminum silicate (Filter Ag) media or an engineered combination of media which may include Filter Ag, Multiple grades of Gravel, Anthracite, or filter sand for the removal of suspended materials from water. The filtration media has a long life for low maintenance costs. Sediment filters require periodic backwashing to eliminate accumulated suspended matter, remove precipitates, and regrade the filter bed.

Sediment filters will remove particulate matter down to 10 microns under ideal conditions. Backwashing sediment filtration offers a cost-effective alternative to disposable sediment filtration cartridges on turbid water supplies..