Patent ID: 8475564

Claim:
A method for cleaning emissions from a biomass modification system to a level in compliance with government regulations for clean air, said method comprising the steps of: modifying biomass, the modification process of the biomass producing emissions having a contaminant level; spraying emissions exhausted from the modification process with water and chemicals, spraying emissions within a spray scrubber, the spray scrubber producing an air/water mixture; filtering the air/water mixture through at least one filter; pumping the air/water mixture into at least one collection tank, allowing the air/water mixture to settle thereby leaving a sediment on a floor of the collection tank; pumping the air/water mixture into a recirculation tank having a sensor, said sensor measuring the contaminant level; and pumping the air/water mixture back to the spray scrubber from the recirculation tank if the contaminant level is above a predetermined level; or exhausting the air/water mixture if the contaminant level is below a predetermined level.