Provides technical expertise on biological treatment processes for soil, air, groundwater, and wastewater cleanup applications. These applications range from municipal sewage/wastewater treatment systems to other industrial processes and manufacturing operations. PRD Tech’s specialty is in the design/build and installation of biotrickling filter system for treatment of odors and volatile organic compounds (VOCs). Compared to thermal oxidation (catalytic, regenerative), which generates nitrogen oxides (NOX) and has high operating costs due to consumption of natural gas, the biotrickling filter is environmentally friendly not generating by products, such as NOX, operates at ambient temperature and pressure, and has low investment and operating costs.