The physical absorptionchemical scrubbing to remove odorsvolatile organic compounds (VOCs) have high cost of consumptive suppliesproduced pollutions. Thus, we have developed a novel bio-filtration system which can remove odors, reduce VOCs emissionfor biogas purification. The advantages include lower energy consumption, high removal efficiencylow cost for maintenance.

The new technics have been published on peer review journals. The total citations by other papers are more than 1400 times. This bio-filtration system has been reported by IEEE Spectrum in 2012 which was the largest bio-system in the world to reduce VOCs waste gases. Also, the specific microorganisms used for bio-filtration system are ten times efficiency higher than active sludge.

The bio-filtration system has been used in composting fieldswastewater treatment. Also, this system has been applied to reduce VOCs waste gases produced from electronic industries. To establish the wastes recyclingbioenergy production technics in Taiwan, we constructed a demonstrated fielded of biogas purification system to remove H2Sused for electricity generation.