Bio-ceramic Filter

Introduction

• Bio-ceramic Filter, capable to improve the removing efficiency (Over 97%) of VOCs in air using the microorganism residing in soil, can be used as an alternative filter material with enhanced performance replacing the presently prevailing active carbon filters used as agents absorbing the harmful materials.
• By using the bio-ceramic filter material, the time for use of filters is increased allowing the reduction of waste at the same time.

VOC Filtratioin System

-VOC Flow Circuit System

1. VOCs are circulated and condensed through the recovery flow channel. While passing through the charcoal filter and ILWOO's "screens" the VOCs revert back to liquid form(become condensed). See Figure 1.
2. A damper valve directs the flow of the condensed VOCs. For example, if the parts washer is in use, the Flow Circuit System recycles the condensed VOC returning it to the parts washer. When the damper valve is closed, all VOCs are directed to the bio-ceramic filter.
3. When parts have been cleaned, the damper valve is adjusted along with the air handling fan to direct VOCs remaining in the parts washer to the bio-ceramic filter.

-Bio-Ceramic Filter

1. Prior to opening the parts washer cover, VOCs will have been treated and mostly eliminated by the bio-ceramic filter. Running the system an additional two minutes will eliminate VOCs in the washer bay prior to opening the cover.
2. ILWOO's bio-ceramic filter utilizes microorganisms that digest VOCs.
3. Under normal conditions, these microorganisms live 3-4months.
4. ILWOO's patented bio-ceramic filter was a joint research effort with professors at Myongji Univ. in Korea and ILWOO's own research team. In-house testing found that on average the Flow Circuit System and Bio-ceramic filter reduced more than 90% of VOC emissions compared to open-type part washers(see table 1). The research team is working on publishing the results. U.T has not validated these results.