Based on the study of SO2

NOx and dust temoval mechsnisims and regularities by pulse corona

it is found that positive pulse corona is very effective for removing SO2 and NOx

the end product can be used as fertilizers

and the dust collection is also better than that by dc energization mode used in traditional ESP.There is a good synergistic effect between ash and gaseous components

which enhances the removal of each other. Results of experiments and analyses affirm the possibility to incorporate SO2

NOx and dust removal functions into one traditional ESP. The way to do that is to introduce the energization mode that exerts positive Pulse voltage and dc-bias voltage simutaneously.