Carpet manufacturing process exhaust contains a variety of particle sizes ranging from submicron and larger, and the objective is to control the opacity and associated odor resulting from the particulate emissions.
In cases where VOC control is not required, Air Clear recommends the use of an Air Clear Coalescing Fiberbed Filter Mist Collector System to control opacity. Air Clear systems use fiberbed diffusion filters to collect the submicron particulate that is the cause of opacity. Fiberbed filters are designed to collect both solid and liquid particulate, and have been used successfully for many years to control the emissions from carpet manufacturing processes effectively and economically.
Air Clear installed three Filter Units in this carpet manufacturing plant. All three units have indexing pre-filters. Two of the units were installed inside of the building and one unit was installed outside. In most cases an Indexing Pre-Filter using a durable poly pre-filter material is offered to remove lint, waxes, and oil particulate from the exhaust to protect the main filters and extend their life. As the filter media gets dirty, the pressure drop increases. At a fixed point the drive motor indexes pulling off the dirty media and replacing it with clean media.
In cases where VOC control is required, Air Clear recommends the use of a Regenerative Thermal Oxidizer (RTO) with an Indexing Pre-filter using a durable poly pre-filter material to remove lint, waxes, and oil particulate prior to entering the RTO. The Pre-filter is used to protect the ceramic media from plugging which repeatedly saves a substantial amount of capital cost in replacement media.