Oscar, Removal of Tannins, ...

Oscar,

Removal of Tannins, all be it not at the concentration you are probably experiencing, is accomplished by dosage of a strong oxidant, such as hydrogen peroxide or bleach, followed by an organic coagulant such as poly-DADMAC's or polyamines.

What happens in this process is the oxidant oxidizes the dissolved tannins, transforming them into particulate matter known as pin floc. Once they have transformed into this form, the coagulant can bridge them together into significantly larger particles that are much easier to remove.

Please don't hesitate to contact me with any further questions.

Troy Davis