A method for improving effectiveness of a steam generator system includes providing air to an air preheater in excess of that required for combustion of fuel and providing the air at a mass flow such that the air preheater has a cold end metal temperature that is no less than a water dew point temperature in the air preheater and such that the cold end metal temperature is less than a sulfuric acid dew point temperature. The method includes mitigating SO.sub.3 in the flue gas which is discharged directly from the air preheater to a particulate removal system and then directly into a flue gas desulfurization system. Flue gas reheat air is fed from the air preheater to heat the flue gas prior to entering a discharge stack to raise the temperature of the flue gas to mitigate visible plume exiting and to mitigate corrosion in the discharge stack.

An air pollution control system includes adenitration device that removes nitrogen oxide in flue gas from a boiler; a heat transfer tube for recovering part of heat of the flue gas after denitration; a precipitator that removes soot and dust in the flue gas after heat recovery; a desulfurization device that removes sulfur oxide in the flue gas discharged from the precipitator; a heat transfer tube for heating the flue gas discharged from the desulfurization device; a circulation pump that circulates a heat medium between the heat transfer tubes; a heat medium heater provided to the circulation pipe to heat the heat medium; and a control device that controls the heat medium heater based on an ammonia concentration at an outlet of the denitration device. The control device causes the heat medium heater to heat the heat medium when the ammonia concentration is higher than a certain value.

An active temperature measurement system includes at least one grounded thermocouple and a processor in communication with the at least one grounded thermocouple. The processor is configured to receive measurements from the at least one grounded thermocouple. The at least one grounded thermocouple is biased by an isolated voltage when the processor is receiving a measurement from the at least one grounded thermocouple.

The present disclosure provides a method for recycling soil contaminated with mercury and dioxin. The method includes: desorbing mercury and dioxin from the contaminated soil by an indirect rotary furnace; condensing the mercury and discharging it by a condensing and discharging unit; and a secondary indirect burner for decomposing dioxin at a high temperature, so as for the concentration of the contaminants in the exhaust being examined to meet regulation standards and the treated soil to meet the current regulations. The present disclosure also provides an apparatus for recycling contaminated soil containing mercury and dioxin.

The present disclosure provides a method for recycling soil contaminated with mercury and dioxin. The method includes: desorbing mercury and dioxin from the contaminated soil by an indirect rotary furnace; condensing the mercury and discharging it by a condensing and discharging unit; and a secondary indirect burner for decomposing dioxin at a high temperature, so as for the concentration of the contaminants in the exhaust being examined to meet regulation standards and the treated soil to meet the current regulations. The present disclosure also provides an apparatus for recycling contaminated soil containing mercury and dioxin.

A device of capturing a sintered product after sintering a waste gas in a semiconductor manufacturing process includes: a cover disposed at a top of a reaction chamber formed on a waste gas treatment tank; a waste gas introducing pipe and a heater respectively disposed in the reaction chamber, a waste gas reaction end being formed at the heater in the reaction chamber corresponding to an outlet of the waste gas introducing pipe; a ring-shaped water disk disposed between the cover and the waste gas treatment tank, an inlet pipe located outside of the reaction chamber being formed on the ring-shaped water disk; and a plurality of nozzles spaced apart at a circumferential distance distributed in the reaction chamber.

A device of capturing a sintered product after sintering a waste gas in a semiconductor manufacturing process includes: a cover disposed at a top of a reaction chamber formed on a waste gas treatment tank; a waste gas introducing pipe and a heater respectively disposed in the reaction chamber, a waste gas reaction end being formed at the heater in the reaction chamber corresponding to an outlet of the waste gas introducing pipe; a ring-shaped water disk disposed between the cover and the waste gas treatment tank, an inlet pipe located outside of the reaction chamber being formed on the ring-shaped water disk; and a plurality of nozzles spaced apart at a circumferential distance distributed in the reaction chamber.

Several embodiments of the present technology are directed to the removal of one or more air pollutants using cooling and/or calcium-containing particles. In some embodiments, a method for removing air pollutants comprises flowing a gas stream having calcium-containing particles and one or more of mercury or hydrochloric acid molecules, and cooling the gas stream, thereby causing at least a portion of the calcium-containing particles to adsorb to the mercury and/or hydrochloric acid molecules in the gas stream. The method can further comprise, after cooling the gas stream, filtering the gas stream to remove at least a portion of the calcium-containing particles having adsorbed mercury and hydrochloric acid.

The present disclosure relates to a smoke processing device for processing smoke, which is generated by an indoor industrial site, a restaurant, or a heating means that applies heat and generates smoke, the device including at least: a smoke purification means comprising a smoke collector equipped with a smoke movement duct, the smoke movement duct comprising a smoke purifier for purifying smoke, which has been collected by the smoke collector, and discharging the purified smoke, the smoke purification means comprising a hot air movement duct for moving the smoke purified and discharged by the smoke purifier; and a heat exchange means installed on the smoke movement duct to promote heat exchange of smoke collected by the smoke collector such that the smoke is converted to high-temperature smoke and is moved to the smoke purifier.

The present disclosure relates to a smoke processing device for processing smoke, which is generated by an indoor industrial site, a restaurant, or a heating means that applies heat and generates smoke, the device including at least: a smoke purification means comprising a smoke collector equipped with a smoke movement duct, the smoke movement duct comprising a smoke purifier for purifying smoke, which has been collected by the smoke collector, and discharging the purified smoke, the smoke purification means comprising a hot air movement duct for moving the smoke purified and discharged by the smoke purifier; and a heat exchange means installed on the smoke movement duct to promote heat exchange of smoke collected by the smoke collector such that the smoke is converted to high-temperature smoke and is moved to the smoke purifier.