A method to reduce emissions, the method comprising the steps of: (a) receiving a process stream into a lower end of a stack housing via a gas inlet manifold, the stack housing comprising a conditioning section, a collector section and an output section, the process stream comprising a gas and particulates; (b) introducing a first aqueous stream into the process stream via an inlet header adjacent the gas inlet manifold, the inlet header comprising one or more multiple throat venturi nozzles, thereby producing a saturated process stream; (c) passing the saturated process stream up through a media bed, wherein the media bed is above the lower end of the stack housing; (d) introducing a second aqueous stream into the saturated process stream via fog headers located above the media bed to provide a counter-current flow of the second aqueous stream down through the media bed, the fog headers comprising a plurality of nozzles, the second aqueous stream forming a liquor flowing down through the media bed, collecting the liquor in a liquor reservoir, circulating the liquor through a heat exchanger and back to the spray nozzles; (e) passing the saturated process stream up out of the media bed into an expansion area; (f) condensing water on a surface of the particulates in the saturated process stream in the expansion area, thereby creating a fog stream, wherein a fog stream comprises a super saturated air stream having 100% relative humidity; (g) passing the fog stream up into the collector section comprising a wet electrostatic precipitator; (h) controlling the airflow, temperature and humidity through the conditioning section to ensure that the fog stream is saturated as it passes into the wet electrostatic precipitator; (i) removing the particulates from the fog stream in the collector section, thereby creating a filtered stream; and (j) releasing the filtered stream out of an upper end of the stack housing though the output section. (a) receiving a process stream into a lower end of a stack housing via a gas inlet manifold, the stack housing comprising a conditioning section, a collector section and an output section, the process stream comprising a gas and particulates; (b) introducing a first aqueous stream into the process stream via an inlet header adjacent the gas inlet manifold, the inlet header comprising one or more multiple throat venturi nozzles, thereby producing a saturated process stream; (c) passing the saturated process stream up through a media bed, wherein the media bed is above the lower end of the stack housing; (d) introducing a second aqueous stream into the saturated process stream via fog headers located above the media bed to provide a counter-current flow of the second aqueous stream down through the media bed, the fog headers comprising a plurality of nozzles, the second aqueous stream forming a liquor flowing down through the media bed, collecting the liquor in a liquor reservoir, circulating the liquor through a heat exchanger and back to the spray nozzles; (e) passing the saturated process stream up out of the media bed into an expansion area; (f) condensing water on a surface of the particulates in the saturated process stream in the expansion area, thereby creating a fog stream, wherein a fog stream comprises a super saturated air stream having 100% relative humidity; (g) passing the fog stream up into the collector section comprising a wet electrostatic precipitator; (h) controlling the airflow, temperature and humidity through the conditioning section to ensure that the fog stream is saturated as it passes into the wet electrostatic precipitator; (i) removing the particulates from the fog stream in the collector section, thereby creating a filtered stream; and (j) releasing the filtered stream out of an upper end of the stack housing though the output section.