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The electrohydrodynamically-assisted(EHD)plasma electrostatic precipitator (called plasma ESP hereafter)was developed not only to collect low-resistive fine particles generated from diesel engine but also to incinerate captured particulates within the same reactor.The plasma ESP is to utilize EHD to transport the charged particles effectively into the low electrostatic field region where electrostatic repulsion force acting on particles by induction charge is very small,resulting in suppression of PM reentrainment.At the same time,collected particulates are incinerated by ozone and oxidation product of NO2 in the flue gas by the surface discharge plasma in the same unit so that no particle storage and handling device are required.