The present invention relates to the filtering of fumes emitted by industrial processes such as those used in iron and steel works, refineries, waste-to-energy plants and the like and in particular relates to a filtering device for fine and ultrafine dust particles and other polluting agents.

Provided is a recombinant microorganism having enhanced activity of at least one protein selected from 6-phosphogluconate dehydrogenase (6PGD) and foldase protein PrsA, a method of reducing a concentration of a fluorine-containing compound in a sample by using the recombinant microorganism, and a method of preparing the recombinant microorganism.

Provided is a recombinant microorganism having enhanced activity of at least one protein selected from 6-phosphogluconate dehydrogenase (6PGD) and foldase protein PrsA, a method of reducing a concentration of a fluorine-containing compound in a sample by using the recombinant microorganism, and a method of preparing the recombinant microorganism.

Provided is a recombinant microorganism including an exogenous gene encoding a bacterial cytochrome P450 protein or a variant thereof, a composition including the recombinant P450 protein or the variant thereof, which is used for removing CH.sub.nF.sub.4-n (n is an integer of 0 to 3) in a sample, and a method of reducing a concentration of CH.sub.nF.sub.4-n in the sample.

A microorganism including a foreign gene encoding a protein having a hydroxylase activity that reduces the concentration of CH.sub.nF.sub.4-n (n is an integer of 0 to 3) in a sample, as well as a composition including the microorganism or lysate thereof, and a method of reducing the concentration of CH.sub.nF.sub.4-n in a sample using the microorganism or lysate.

A microorganism including a foreign gene encoding a protein having a hydroxylase activity that reduces the concentration of CH.sub.nF.sub.4-n (n is an integer of 0 to 3) in a sample, as well as a composition including the microorganism or lysate thereof, and a method of reducing the concentration of CH.sub.nF.sub.4-n in a sample using the microorganism or lysate.

The present invention relates to an advanced system for the removal of air pollutants from combustion and non-combustion processes that generate air pollutants that are regulated by environmental agencies. The pollutants include, but are not limited to, particulate matter; acid gases including sulphur dioxide, hydrogen chloride and hydrogen fluoride; metals such as mercury, dioxins, VOCs and reagents such as ammonia. The system collects and processes the polluted gas stream through two forms of wet method scrubbing technology. The gas is first passed through a wet scrubbing reactor capable of complete interaction between the gas and the selected liquid scrubbing reagent at one or more interfaces. The scrubbing medium is selected for its reactivity with the pollutants targeted in the process, its cost and impact on the environment. From the exit of the scrubbing reactor the gas is directed through a wet electrostatic precipitator to remove the remaining targeted pollutants to very high removal efficiency.

The present invention relates to an advanced system for the removal of air pollutants from combustion and non-combustion processes that generate air pollutants that are regulated by environmental agencies. The pollutants include, but are not limited to, particulate matter; acid gases including sulphur dioxide, hydrogen chloride and hydrogen fluoride; metals such as mercury, dioxins, VOCs and reagents such as ammonia. The system collects and processes the polluted gas stream through two forms of wet method scrubbing technology. The gas is first passed through a wet scrubbing reactor capable of complete interaction between the gas and the selected liquid scrubbing reagent at one or more interfaces. The scrubbing medium is selected for its reactivity with the pollutants targeted in the process, its cost and impact on the environment. From the exit of the scrubbing reactor the gas is directed through a wet electrostatic precipitator to remove the remaining targeted pollutants to very high removal efficiency.

The present invention relates to a vacuum pumping and abatement system for evacuating processing gas from a process chamber and removing noxious substances from the processing gas. The present invention also relates to a method of purging a vacuum pumping arrangement. The present invention seeks to reduce the cost of ownership and operation and carbon footprint of such systems, by providing a vacuum pumping and abatement system for evacuating processing gas from a process chamber and removing noxious substances from the processing gas, comprising a vacuum pumping arrangement for evacuating processing gas from a process chamber; a source of compressed air for purging the vacuum pumping arrangement during evacuation; and a burner for receiving processing gas and compressed air from the vacuum pumping arrangement and removing noxious substances therefrom by burning the processing gas in oxygen wherein at least some of the oxygen that supports combustion is derived from the compressed air.

The present invention relates to a vacuum pumping and abatement system for evacuating processing gas from a process chamber and removing noxious substances from the processing gas. The present invention also relates to a method of purging a vacuum pumping arrangement. The present invention seeks to reduce the cost of ownership and operation and carbon footprint of such systems, by providing a vacuum pumping and abatement system for evacuating processing gas from a process chamber and removing noxious substances from the processing gas, comprising a vacuum pumping arrangement for evacuating processing gas from a process chamber; a source of compressed air for purging the vacuum pumping arrangement during evacuation; and a burner for receiving processing gas and compressed air from the vacuum pumping arrangement and removing noxious substances therefrom by burning the processing gas in oxygen wherein at least some of the oxygen that supports combustion is derived from the compressed air.