MESP uses a charge grid to generate a corona discharge and release negative ions with a voltage of -10.2KV. The negative ions collide with air molecules to generate more negative ions, forming an avalanche effect.
Once away from the corona zone, the negative ions are attracted to the surrounding air, negatively charging the gas molecules, which then move towards the MESP positive plate under the action of a strong electric field.
The fine particles will block the negatively charged air molecules from flying and stick them together. The fine particles continue to absorb negatively charged molecules until they are saturated. The fine particles thus carry enough negative charges.
Once the fine particulates carry enough negative charges, they move to the positive plate under the action of the dense MESP matrix electric field – and are firmly attracted by it.
1824: Hohlfeld, a mathematics teacher in Büzig, Germany, first proposed that electricity can precipitate smoke particles.
1906: CF.G.Cottrell succeeded in experiments at the University of California, Berkeley, USA, and developed a Cottrell-type industrial electric dust collector.
1907: the first industrial electrostatic precipitator was built near San Francisco, USA, successfully processing industrial dusty gas.
1955 and forward: Electric dust removal technology has been widely used in industrial smoke and dust treatment and air purification.
1980: Masuda and others in Europe carried out the application of high-voltage narrow pulse power supply in the field of electrostatic dust removal.
1990: Bai Xiyao and others in China conducted research on the same-polarity soot-charged condensation technology of the DC electric field.
1996: Hever-9 Group successfully applied electrostatic technology to a large tunnel ventilation system for the first time.
1998: Pasic and others at Ohio University in USA first proposed the concept of "Membrane Electrostatic Precipitator. The film woven with advanced carbon fiber materials is used as the dust collecting electrode of ESP, and the dust collecting efficiency is remarkable.
2005: Woodruff and others in the United States first proposed the electrostatic dust collection air purification technology using an intense field dielectric.
2014: AirQuality Technology comprehensively promoted the application of MESP technology in industrial and civil fields, making significant progress in this area.