A scavenger comprising a formaldehyde sulfoxylate may be used to scavenge hydrogen sulfide (H.sub.2S) from systems that are brine or mixed production. Suitable formaldehyde sulfoxylates include, but are not necessarily limited to, sodium formaldehyde sulfoxylate, zinc formaldehyde sulfoxylate, and calcium formaldehyde sulfoxylate, potassium formaldehyde sulfoxylate, magnesium formaldehyde sulfoxylate, iron formaldehyde sulfoxylate, copper formaldehyde sulfoxylate, alkene aldehyde sulfoxylates, and combinations thereof.

The Phipps indoor air filter (PIAF) is configured for use with an indoor atmosphere that contains one or more pathogenic viruses. The PIAF is a pharmacologically and phytochemically (P&P) active structure that removes the one or more viruses from the confined indoor atmosphere. The PIAF removes the one or more viruses by: a) sequestering the one or more viruses within the PIAF; and, b) terminating the biological processes of the one or more viruses using P&P structures. The PIAF incorporates a flow chamber and a filter structure. The flow chamber contains the filter structure. The flow chamber forces or draws an air flow through the filter structure contained within the flow chamber. The filter structure physically and biochemically: a) sequesters the one or more viruses; and, b) terminates the biological processes of the one or more viruses by exposing the one or more viruses to the P&P structures.

The present invention relates to the separation of gases, and more specifically to an inventive process for the removal of carbon dioxide gas using carefully selected ionic liquid absorbents together with water in a carefully selected ratio.

The invention relates to a method for purifying a gaseous, liquid or aerosol composition, containing at least one pollutant consisting of a volatile inorganic compound (VIC), a siloxane and/or a functional volatile organic compound (Pollution Trap Concept or P.T.C. System).

The problem of the present invention is to provide an exhaust gas purifying agent for automobiles which is capable of improving the automobile fuel mileage as well as purifying the exhaust gas of the automobiles, and further extending the effective duration of the exhaust gas purifying agent for automobiles by a simple method of spraying the exhaust gas purifying agent for automobiles using only natural ingredients on the air filter.

The problem of the present invention can be solved by using a liquid containing a) tourmaline fine powder, b) porous material fine powder, c) fucoidan extracted from seaweeds, d) amino peptides and/or alginic acids extracted from seaweeds in water as the exhaust as purifying agent for automobiles by spraying on the air filter of automobiles.

The purification method comprises: a step for placing the laden gas stream in contact with a saline solution stream, the saline solution stream comprising, before placement in contact, at least 300 g/l of salts, at least part of the quantity of volatile organic compound being extracted from the laden gas stream and absorbed by the saline solution stream, the placement in contact step producing a purified gas stream containing a residual quantity of volatile organic compound and a laden saline solution stream; a step for recovering the volatile organic compound, comprising a sub-step for decanting a laden saline solution stream, leading to the separation of a phase containing the volatile organic compound and of the saline solution.

An air conditioning device includes: a moisture absorption unit that causes a liquid hygroscopic agent to absorb moisture contained in the air; an atomizing regeneration unit that atomizes the moisture contained in the liquid hygroscopic agent supplied from the moisture absorption unit via a first liquid hygroscopic agent transport flow path, removes the moisture from the liquid hygroscopic agent, and regenerates the liquid hygroscopic agent: an air introduction flow path through which the air is introduced to the moisture absorption unit and the atomizing regeneration unit; a second liquid hygroscopic agent transport flow path through which the liquid hygroscopic agent is transported from the atomizing regeneration unit to the moisture absorption unit; and an air internal pressure rising suppression member that suppresses rising of an internal pressure of the air in the air introduction flow path.

A method of reducing selenium contamination in a waste water stream is described herein. The method includes channeling a flue gas stream through an absorber, contacting the flue gas stream with an aqueous alkaline-based slurry, such that any selenium byproduct in the flue gas stream forms a selenium compound within the aqueous alkaline-based slurry, controlling oxidation of the selenium compound in the aqueous alkaline-based slurry, and adding a precipitation agent to the aqueous alkaline-based slurry to cause the selenium compound within the aqueous alkaline-based slurry to precipitate.

The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out, at the same time, both the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF). The invention also describes several embodiments of said fluid consisting of producing an oil-in-water type emulsion.

A gas-liquid contacting apparatus and method are described, in which at least one rotor assembly including packing is arranged in a contacting chamber containing at least one stator assembly including at least one heat exchanger arranged to thermally modulate the gas-liquid contacting so that each stator assembly is operatively arranged with each stator assembly to provide gas-liquid contacting at temperatures effective for mass exchange between the gas and liquid. The rotor and stator assemblies may be of annular shape, or may be of disk shape in a stacked array of rotor assemblies alternating with stator assemblies. Such apparatus and method are usefully employed for CO.sub.2 capture from CO.sub.2-containing flue gases such as combustion effluents from power generation plants.