91 results about "Human decontamination" patented technology

A storm water treatment device that is installed under the grate of new or existing catch basins, and more commonly referred to as an insert. The catch basin decontamination apparatus has a universal housing and support ring that allows one design to fit most applications. Adjustable chains allow for proper position below grate and a semi-flexible molded or rigid deflector directs incoming drain water to the housing. A slip-on filter / absorber cartridge fits over a perforated drain tube, in the center of the housing, allowing the drain water to first pass through the filter / absorber media before exiting through the drain tube and out the bottom of the housing. The filter / absorber cartridge includes a variety of absorber materials that absorb oil and repel water. Activated carbon, microbes and other site specific absorbents can be used in the replaceable slip-on cartridge. A leaf pre-strainer helps prevent leaves and debris from entering the housing. A clean in place suction tube and clod buster form of the apparatus aids in cleaning the housing.

Ultrasonic solvent cleaning processes can effectively decontaminate sensitive equipment. The disclosed decontamination liquids meet the following criteria:a. It is compatible with a wide range of sensitive equipment—the performance of electronic and optical equipment is not affected by immersion in decontamination liquid.b. The principal chemical warfare agents of concern are sufficiently soluble in decontamination liquid for it to be an effective decontamination medium.c. The principal chemical warfare agents of concern are quantitatively removed from solution in decontamination liquid by activated carbon. When agent contaminated decontamination liquid is passed through a bed of activated carbon, the agent adsorbs onto the activated carbon, resulting in agent free decontamination liquid that can be recycled and reused.d. It is nonflammable, nontoxic, and environmentally acceptable.Ultrasonic agitation provides effective mass and physical transfer of contaminants from the surfaces of the objects being decontaminated to the bulk of the decontamination liquid.Contaminant removal occurs in three steps: removal of the contaminant from the surface of the part being processed, transfer of the dissolved or suspended contaminant into the bulk of the decontamination liquid in the immersion sump, and then removal of the dissolved contaminant by activated carbon adsorption, or suspended contaminant by filtration.Biological contaminants are also effectively removed or inactivated by immersion and sonication in decontamination fluid or solutions of a soluble surfactant in decontamination fluid.Activated carbon beds and filters that come into contact with contaminated liquid can be contained in commercially available housings that shield the system operator from any contained toxic contents. These sealable containers, and their contents, can be destroyed by standard methods, such as incineration.Spectrographic fluorimetry can detect extremely low levels (of the order of 10 ppt) of fluorescent dyes dissolved in decontamination fluid.Decontamination of sensitive equipment in decontamination fluid can be performed in commercially available ultrasonic vapor degreasers.

A system for microbially and / or chemically decontaminating a room such as a hotel room includes a vapor generator which supplies a decontaminant vapor, such as hydrogen peroxide vapor to the room. The room is then aerated to a level at which it is safe for normal occupants to enter. By using a two step aeration, with a second step at lower humidity than the first, the concentration of residual hydrogen peroxide is reduced rapidly to safe levels of 1 ppm or less, typically about 0.5 ppm, in under four hours. The room is rendered substantially free of contaminants, such as those responsible for Severe Acute Respiratory Syndrome (SARS), Norwalk virus, and unpleasant odors.

The disclosure provides compositions and methods for making a colorized solution of an aqueous disinfectant that is both stable in bulk solution and will fade to clear within a predetermined period of time after being applied to a surface, for example as a spray or film. The compositions and methods described here allow an end user to visualize both the extent of coverage and the duration of contact of the disinfectant with the surface, thereby providing more efficient disinfection of the surface.

The method and apparatus of the embodiments of the present invention employ an in-situ particle decontamination technique that allows for such decontamination while a wafer is a vacuum tool or deposition chamber, thereby eliminating the need for another device for performing decontamination. This in-situ decontamination is effective for particle contamination resulting, for example, from tool resident mechanical component. Furthermore, particle decontamination is performed in the presence of plasma, having a potential for helping to maximize a “self bias” voltage, under RF conditions, and is integrated into the vacuum process.

A storm water treatment device that is installed under the grate of new or existing catch basins, and more commonly referred to as an insert. The catch basin decontamination apparatus has a universal housing and support ring that allows one design to fit most applications. Adjustable chains allow for proper position below grate and a semi-flexible molded or rigid deflector directs incoming drain water to the housing. A slip-on filter / absorber cartridge fits over a perforated drain tube, in the center of the housing, allowing the drain water to first pass through the filter / absorber media before exiting through the drain tube and out the bottom of the housing. The filter / absorber cartridge includes a variety of absorber materials that absorb oil and repel water. Activated carbon, microbes and other site specific absorbents can be used in the replaceable slip-on cartridge. A leaf pre-strainer helps prevent leaves and debris from entering the housing. A clean in place suction tube and clod buster form of the apparatus aids in cleaning the housing.

The invention relates to compositions and methods for prion degradation, decontamination or disinfection. The composition comprises an oxidizing agent, one or more proteases and a surfactant such as an ionic surfactant / detergent. The method comprises contacting a prion contaminated entity with a prion-degrading composition comprising an effective amount of an oxidizing agent, an effective amount of at least one protease, and an effective amount of a surfactant. The components of the composition may be contacted with a prion-contaminated entity sequentially or simultaneously using an aqueous composition. Typically at least two different proteases are used for optimal efficacy. Preferably the oxidizing agent comprises peracetyl ions or a source thereof. The invention also relates to kits comprising the various reagents.

The invention discloses an energy-saving water conservancy gate with a decontamination function, which comprises a control box and a solid casing installed under the control box. The control box is provided with an installation cavity, and the installation cavity is provided with a first motor. The driving end of the first motor is symmetrically provided with hydraulic telescopic rods, and the hydraulic telescopic rods are fixedly connected to the inner wall of the installation cavity. The bottom of the control box is provided with a first rotating hole and a second rotating hole communicating with the installation cavity. The end of the hydraulic telescopic rod away from the control box extends through the first rotating hole to the outside of the control box and is fixedly connected with the solid shell. A second motor is provided under the first motor, and a first motor is provided at the driving end of the second motor. Turn the lever. The present invention can choose small-scale water release or large-scale water discharge according to the actual situation, which is not only convenient for energy saving, but also has a rotating scraper to clean the sludge and garbage at the bottom of the gate while the gate is discharging water and rising, avoiding the danger of manual decontamination, and also The service life of the device is extended.

A method for chemically decontaminating radioactive material. The method includes reducing-dissolving step for setting surface of radioactive material in contact with reducing decontamination liquid including mono-carboxylic acid and di-carboxylic acid as dissolvent; and oxidizing-dissolving step for setting the surface of the radioactive material in contact with oxidizing decontamination liquid including oxidizer. The method may include repeated pairs of steps, each pair including the reducing-dissolving step and the oxidizing-dissolving step. The mono-carboxylic acid may include formic acid, and the di-carboxylic acid includes oxalic acid. The oxidizer may be ozone, permanganic acid or permanganate.

A method for decontamination of a contaminated region containing biological species to be destroyed, includes a decontamination step during which a decontamination gas containing atomic nitrogen is propagated in the contaminated region, and atomic nitrogen contributes to the destruction of biological species in the contaminated region.