level is reached and then valve 42 is opened and valve 40 is allowed to close of course a separate level sensor may also be utilized an electronic control module ecm 36 determines that regeneration of an associated particulate filter 10 is required regeneration utilizing reverse flow of filtered exhaust gas removes particulate matter from the filter the separated particulate and exhaust gases are blown into the embedded settling tank 22 and pressurizing settling tank 22 to some degree the pressure is relieved by the vent return line 30 allowing most of the gases minus the particulate matter to be vented back to upstream of the particulate filter the ecm after a determined time turns on the ultrasonic mixer 38 the particulate matter 46 fed to the receptacle or settling tank 22 can be described as nano particles which are agglomerated hereafter these are referred to as agglomerated particulate matter particles 46 the agglomerated particulate matter particles 46 are then hit with alternating high and low ultrasonic pressure waves created by a deagglomerater for example the ultrasonic mixer 38 these waves cause cavitation in the fuel and effectively deagglomerate the particulate matter particles to an absolute level below 6 7 microns if a fuel filter 50 is used in the fuel system the deagglomeration level is advantageously to a micron size where the particles 46 will pass through the fuel filter 50 it is believed that the disclosed arrangement can deagglomerate to the original particle size preferably a second ultrasonic mixer 38 u2032 is placed at the fuel filter 50 to assure deagglomeration of particles 46 to no more than the 2 micron size it is perceived possible to deagglomerate the particles even to lower levels if only one ultrasonic mixer is to be utilized it preferably is.