Alum Tannin/Gas Separator Tank
Discoloration in water is often caused by tannins in the water. Tannins are microscopic particles of vegetation that come from either coal beds in deeper or shallower formations or from decaying vegetation or sacrificial vegetation of some kind.
The discoloration you see from tea is coming from microscopic particles of the tea leaves which are basically tannins. Tannins can be tricky to remove in many situations and in certain areas of the continent where there is sodium or gas in the water, the tannins will separate and bind with very small particles of carbon dioxide gas or just air in general.
The common method to remove tannin from water is to use a clarifier or aluminum phosphate or alum. When using alum and it is injected into the water supply, it combines with the tannin, the tannin particles get sticky and when it is filtered out of the water, it sticks to the filter bed, making it difficult to clean the bed.
One thing that aggravates this situation is when the tannin and the alum combine with the air that’s in the water, then the air and tannin precipitate will rise to the top of the retention tank where the discharge line is and ends up going over onto the media bed in higher amounts than it should.
With the present invention, the tannin is flushed off the retention settling tank, not only from the bottom of the tank but also at the top of the tank so that it will not go over onto the filter bed. This system basically solves the significant problem of loading unwanted alum/tannin precipitate onto the filter bed.
This product is fully developed and is patent pending.