Traditional VOCs control technologies such as incineration, absorption, adsorption, and condensation have been commonly used to remove VOCs vapors in air streams. The use of biofiltration technology for controlling air contaminated with various VOCs vapors is a new application and has been researched by a number of investigators. These studies have proven that the biofiltration technology is a more cost-effective process for treating medium-strength and low-strength VOCs vapors in air streams tha...