I have a means to regenerate liquid phase carbon while it is receiving contaminants such as hydrocarbons or certain chemicals. The carbon does not have to be removed for regeneration and it does not reduce in its ability to adsorb after regeneration. It is very inexpensive to regenerate and there is no breakdown in the carbon. It is regenerated by a special microbial product (all natural) and a product that uses the water in the carbon filter to supply oxygen to the microbes. There are no residual products left, such as, sludge and the byproducts are carbon dioxide and water.