System and method for combustion of multiple fuels

A co-fired combustion apparatus, comprising:

• a first fuel-introduction body configured to provide a first fuel to a first combustion reaction;
• a second fuel-introduction body configured to provide a second fuel to a second combustion reaction, wherein the second combustion reaction emits an exhaust flow having a plurality of combustion particle classifications and wherein the first fuel introduction body is positioned relative to the second fuel introduction body to cause the first combustion reaction to at least intermittently provide heat to the second combustion reaction;
• and
• an electrode assembly associated with the second fuel introduction body or a combustion volume to which the second fuel introduction body provides the second fuel, the electrode assembly being configured to be driven to or maintained at one or more first voltages selected to provide an electric field to the combustion volume;
• a charge source, separate from the electrode assembly, configured to supply electrical charges into the exhaust flow;
• a high voltage power supply (HVPS) configured to apply an electrical potential having a first polarity to the charge source;
• a collector plate including an electrical conductor coupled to receive an electrical potential having a second polarity from a node operatively coupled to the HVPS, the collector plate disposed above and a distal to the second combustion reaction and arranged to cause at least one combustion particle classification to flow to a collection location and to cause at least one different combustion particle classification to flow to one or more locations different from the collection location.