The present invention relates to a method and to an apparatus for separating an exhaust gas, in particular an exhaust gas of a boiler, comprising introducing a gas stream of exhaust gas inside a washing chamber, dispensing a pressurized liquid shaped as drops inside the washing chamber, wherein the delivery pressure is adjusted according to the specific particulate to be separated so as to provide, during the separating step, a physical interaction between the delivered liquid drops and the particulate particles.

A waste gas purification system includes a gas container, a gas input unit for intermittent entrance of waste gas into the gas container, a gas output unit for discharge of the waste gas out of the gas container after the waste gas is purified, and a contaminant capturing apparatus disposed in the gas container and including a capture device that purifies the waste gas by using an adhesive to adhere particulate matter in the waste gas. A length of an active time the gas input unit allows for entrance of the waste gas into the gas container does not exceed sixty seconds. A length of a pause time the gas input unit does not allow for entrance of the waste gas into the gas container does not exceed thirty minutes.

A scrubber system for removing odorous and/or harmful gases from polluted gases/air comprising a scrubber body, a blower to supply the polluted gas into the scrubber body under pressure enabling the supplied polluted gas to travel from lower portion of the scrubber body to upper portion of the scrubber body and one or more diffraction units provided with supply of wash solution accommodated inside of the scrubber body and disposed in pathway of the polluted gas within the scrubber body to diffract the polluted gases/air with the wash solution thereby to clean the polluted gases/air and discharge clean gases/air through a scrubber body outlet at its top. Each of diffraction units includes one or more modularly configurable diffraction plate having an assembly of spaced apart a perforated upper plate and a perforated lower plate wherein each said perforated upper plate and said perforated lower plate having plurality of passing holes on their planer surface and assembled one over the other enabling said passing holes in the perforated upper plate and the perforated lower plate are disposed in a zigzag pattern, whereby the polluted gases/air while moving upwards and upon contact with said wash solution in said diffraction unit while passing through said passing holes in said perforated upper and lower plates of said diffraction unit generate swirl bubbles within the wash solution under pressure of said polluted air/gases moving upwards for maximizing contact with said polluted gases/air and efficient cleaning of the polluted gases/air for release of clean gases/air through the scrubber body outlet.

A gas scrubber cone condition monitoring system has a sealed gas scrubber cone (9) moveably mounted in a gas pipe (1), a collar (5) fixedly mounted radially outward of the cone in the gas pipe and a pressure tap (12) into the sealed cone. The pressure tap is coupled to a condition monitor (17, 18) via an input line (16). An output line (14) from the condition monitor is coupled to a gas pipe (15), downstream of the sealed cone. The condition monitor includes at least one of a pressure gauge and a gas flow meter.

An air pollution control unit is configured to bring particle-containing gas and washing liquid into contact with each other to collect particles in the particle-containing gas. The air pollution control unit includes a gas washing column having a gas cleaning section in which the particle-containing gas and the washing liquid are brought into co-current contact with each other, a gas cooling column disposed downstream of the gas washing column along the gas flow and having a gas cooling section in which the particle-containing gas that has been cleaned (cleaned gas) and cooling liquid are brought into countercurrent contact with each other, and a gas communication path.

A novel methodology of air purification and apparatus uses thorough air-bath to trap airborne debris and gaseous molecules in the liquid. Incoming air are crushed repeatedly and thoroughly at various stages into tiny air bubbles in contact with liquid in the apparatus where airborne materials and gaseous molecules are trapped in the liquid. This novel cleaning system can effectively remove small or large airborne debris and gaseous molecules, in contrast to cleaning effectiveness limited by the filter pore sizes in traditional filter system. The liquid can be water, water mixed with any designed substances or other type of liquid phase of materials. In exemplary case, water is used as a part of filtration medium, the apparatus thus can be served as both air purifier and humidifier. A relatively high humidity in the air would help to trap more airborne debris, which makes the air purification apparatus more efficient.

An adaptive spray cleaning system includes a gas tunnel having a gas inlet and a gas outlet. A sprayer assembly is between the gas inlet and the gas outlet. The sprayer assembly includes at least one sprayer array having at least one spray nozzle. The at least one spray nozzle is directed into the gas tunnel. The sprayer assembly includes at least one variable spray configuration characteristic. A sprayer assembly control system is coupled with the at least one sprayer array. The sprayer assembly control system includes one or more sensors proximate at least one of the gas inlet or the gas outlet. The one or more sensors are configured to measure a pollutant characteristic. A controller is in communication with the one or more sensors and the sprayer assembly. The controller is configured to control the at least one variable spray configuration characteristic according to the measured pollutant characteristic.

The present invention relates to a wet scrubbing head design whose horizontal orientation and flooded operating characteristics allow complete wet scrubbing at multiple interaction zones each with different neutralizing reagents. The capacity for multiple scrubbing zones improves overall pollutant removal efficiency by adding polishing interaction zones for particulate and acid gas removal systems or by broadening the range of pollutants being removed by operating with a different neutralizing solution or a combination of these operating conditions. The flooded head design approach allows a single scrubber to accomplish high levels of removal efficiency for multiple pollutants which reduces cost, and footprint interaction complexities of the multiple devices it replaces. Flooded head scrubbers have application in combustion flue gas pollutant removal and in chemical and industrial applications that generate dust, odors and acid gases.

The invention proposes an apparatus for gas cleaning having a high gas cleaning efficiency at any relative humidity. The apparatus comprises a passage (10) for gas flow; a hydrophilic carrier (12) permeable for gas flow, at least part of which is positioned within said passage for gas flow, and configured for containing a reagent that contacts the gas in said passage for gas flow; a unit (14) for disposing liquid to said carrier; and a controller (16), associated with said unit for disposing liquid, configured for controlling the unit for disposing to dispose an aqueous solution of dissolved reagent to the carrier; and after that controlling the unit for disposing to dispose liquid in case the humidity of the gas is below a first humidity threshold, or to stop disposing liquid in case the humidity of the gas is above a second humidity threshold.

Indoor air is purified using a purifying solution in an arrangement capable of removing formaldehyde and other pollutants, such as, for example, particulates. The arrangement can prevent re-vaporization of volatile compounds and can generate air that has been humidified or dehumidified. In one approach, incoming air is contacted with the purifying solution in a packed bed.