A ballast water treatment apparatus and a ballast water treatment system having a ballast water treatment apparatus are provided. The ballast water treatment apparatus includes a ballast water transport line configured to transport ballast water between a first location and a second location, the transported ballast water being passed through at least one injector, and a plasma generation device configured to be fed with a feed gas optionally comprising oxygen, and configured to generate a feed gas plasma by a streamer type discharge in a discharge area to provide a treated gas at a treated-gas outlet. The injector includes a liquid passage having an area constructed such as to increase a velocity of the passed-through water in a region of increased velocity, and an injector gas inlet provided in the region of increased velocity. The treated-gas outlet is in gaseous connection with the injector gas inlet.

A ballast water treatment apparatus and a ballast water treatment system having a ballast water treatment apparatus are provided. The ballast water treatment apparatus includes a ballast water transport line configured to transport ballast water between a first location and a second location, the transported ballast water being passed through at least one injector, and a plasma generation device configured to be fed with a feed gas optionally comprising oxygen, and configured to generate a feed gas plasma by a streamer type discharge in a discharge area to provide a treated gas at a treated-gas outlet. The injector includes a liquid passage having an area constructed such as to increase a velocity of the passed-through water in a region of increased velocity, and an injector gas inlet provided in the region of increased velocity. The treated-gas outlet is in gaseous connection with the injector gas inlet.

An ozone treatment device includes an ozone destruct module and an ozone generator mounted within a housing. The ozone destruct module and the ozone generator are mounted between corresponding air inlets and air outlets formed in the housing. The ozone treatment device also includes a controller mounted to the housing. The controller is configured to generate ozone with the ozone generator for a first time period and to automatically destruct ozone with the ozone destruct module for a second time period following the first time period. In certain implementations the treatment device includes an input device for receiving an operator input. In such cases the controller can determine the first and second time periods based on the operator input.

An ozone treatment device includes an ozone destruct module and an ozone generator mounted within a housing. The ozone destruct module and the ozone generator are mounted between corresponding air inlets and air outlets formed in the housing. The ozone treatment device also includes a controller mounted to the housing. The controller is configured to generate ozone with the ozone generator for a first time period and to automatically destruct ozone with the ozone destruct module for a second time period following the first time period. In certain implementations the treatment device includes an input device for receiving an operator input. In such cases the controller can determine the first and second time periods based on the operator input.

A gas treatment device that treats a gas to be treated, including oxygen, introduced at a gas inlet and that exhausts a treated gas at a gas outlet, the gas treatment device includes: a gas channel that communicates the gas inlet with the gas outlet; a blower that allows the gas to be treated to flow from the gas inlet to the gas outlet; an ultraviolet light source that is disposed in the gas channel and radiates ultraviolet light having a wavelength of 230 nm or less; a filter that is disposed at a side at which the gas outlet is located from the ultraviolet light source in the gas channel, and that adsorbs at least ozone; and a control unit that controls the blower to operate, wherein the control unit controls the blower to start a blowing operation after the ultraviolet light source starts radiating the ultraviolet light.

A gas treatment device that treats a gas to be treated, including oxygen, introduced at a gas inlet and that exhausts a treated gas at a gas outlet, the gas treatment device includes: a gas channel that communicates the gas inlet with the gas outlet; a blower that allows the gas to be treated to flow from the gas inlet to the gas outlet; an ultraviolet light source that is disposed in the gas channel and radiates ultraviolet light having a wavelength of 230 nm or less; a filter that is disposed at a side at which the gas outlet is located from the ultraviolet light source in the gas channel, and that adsorbs at least ozone; and a control unit that controls the blower to operate, wherein the control unit controls the blower to start a blowing operation after the ultraviolet light source starts radiating the ultraviolet light.

An aspirating smoke detection unit 1 for limiting the spread of airborne contaminants. The aspirating smoke detection unit 1 includes a smoke detector 5 for detecting the presence of smoke particles suspended in air from a monitored region; an ozone generator 7 for producing ozone from oxygen contained in air from the monitored region 20; and an ionizer 8 for ionizing air molecules within air from the monitored region 20. A methods of reducing the spread of airborne contaminants within a monitored region 20 using the aspirating smoke detection unit 1.

An aspirating smoke detection unit 1 for limiting the spread of airborne contaminants. The aspirating smoke detection unit 1 includes a smoke detector 5 for detecting the presence of smoke particles suspended in air from a monitored region; an ozone generator 7 for producing ozone from oxygen contained in air from the monitored region 20; and an ionizer 8 for ionizing air molecules within air from the monitored region 20. A methods of reducing the spread of airborne contaminants within a monitored region 20 using the aspirating smoke detection unit 1.

A compact lightweight air filtration system is disclosed. The air filtration system includes a hydrophobic particulate/coalescing filter and a cleanable ozone converter housed in a housing with an inlet and an outlet. Air flowing from the inlet to the outlet passes through the particulate/coalescing filter element and then the cleanable ozone converter to remove particulates, aerosols, liquids, and ozone. The air filtration system may comprise a fuel tank inerting system (FTIS) filter assembly. The FTIS filter assembly may include a binderless media (no binder) suitable for use in high temperatures. The FTIS filter assembly includes a catalytic converter configured to adsorb one or more VOCs, such as Toluene, Propylene Glycol (C.sub.3H.sub.8O.sub.2), Pentanoic Acid, Butane (C.sub.4H.sub.10), Formaldehyde (CH.sub.2O), and Carbon Dioxide (CO.sub.2).

A compact lightweight air filtration system is disclosed. The air filtration system includes a hydrophobic particulate/coalescing filter and a cleanable ozone converter housed in a housing with an inlet and an outlet. Air flowing from the inlet to the outlet passes through the particulate/coalescing filter element and then the cleanable ozone converter to remove particulates, aerosols, liquids, and ozone. The air filtration system may comprise a fuel tank inerting system (FTIS) filter assembly. The FTIS filter assembly may include a binderless media (no binder) suitable for use in high temperatures. The FTIS filter assembly includes a catalytic converter configured to adsorb one or more VOCs, such as Toluene, Propylene Glycol (C.sub.3H.sub.8O.sub.2), Pentanoic Acid, Butane (C.sub.4H.sub.10), Formaldehyde (CH.sub.2O), and Carbon Dioxide (CO.sub.2).