Electrostatic precipitators - Import export

Dr. Frederick Cottrell developed the first wet electrostatic precipitator (WESP) in 1907 to control sulfuric acid mist from a copper smelting process in Pinole, California.Since that time WESP technology has become well-established in both industrial and utility applications around the world to remove sub-micron particulate, condensables, and acid mist as a final polishing device in an air pollution control system where an upstream dry ESP, fabric filter or wet scrubber cannot capture the sub-micron particulate due to its small size.

Since Dr. Frederick Cottrell's invention over a century ago, electrostatic precipitators (ESPs) have been a primary technology for controlling particulate emissions. ESPs can be designed to meet stringent particulate emission standards with minimal pressure loss and high equipment reliability for extended plant operation.

The Hybrid Collector is the combination of an Electrostatic Precipitator (ESP) with a Hamon Fabric Filter with suitable air to cloth ratio. In a Hybrid Collector, the fabric filter is located either downstream of the ESP or within the casing of the existing ESP by replacing one or more fields of collecting plates with the fabric filter modules. The Hybrid collector can help bring particulate emissions into compliance due to the fabric filter collecting higher levels of particulate, and finer particulate, than an ESP of an equivalent footprint