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An engine and industrial exhaust system for an internal combustion emissions including a liquid filled treatment tank, combustion fume air pressurized flushing tubes disposed in the treatment tank below a predetermined water level trap attached to an outlet for collection and transporting to a biological treatment system and method provided for treatment in a earth aggregate filled bed enclosed by a liquid impervious barrier using triangular panels housing a perforated tube to receive and cleanse the exhaust liquid using the earth bio-filter and surface vegetation by capillary moisture vapor pressure passing through the root system together with transpiration of the turf grass and vegetation controlled by a recirculation system maintaining the generally vertical flow of water through the biological bed for cleansing action.