An electrostatic precipitator (ESP) is an important part of thermal power plants, hich are mostly used to keep the air free from landbase pollution by collecting all particles Nitric oxide emissions came down threefold lower with one dehydrator in local exhaust gas through these machines There are, nevertheless some performance-wise place as well.Only ESP combusts An ESP has numerous functions including recovering and winnowing fly ash and other particulate from those flue gases that stem from combustion process. The techniques used in an ESP incorporate a low-voltage precharger for the particles, an alternated electric field to charge them and an intense electric field to draw them along channels into their destination point on the collecting plates.ESP manages to extract close to 99.9 percent of the particulate matter In practice, ESPs are an integral part of environmental management and air quality improvement, especially in coal-fired power plants where they significantly reduce the output of objectionable pollutants.