Abstract: A method for treating sulfide in an aqueous fluid comprises contacting the fluid with an oxidizer in the presence of a sulfur dye or sulfurized vat dye. In one embodiment, the method comprises treating sulfide contaminated water by contacting the contaminated water with air in the presence of a sulfur dye or a sulfurized vat dye. The method is useful for remediating industrial, agricultural, and municipal waste water.

Abstract: A sieve-like filter unit, especially for a cartridge-shaped receptacle, which is arranged on a connecting port/connector of the receptacle and is designed to withhold undissolved powder and/or solid particles present in the receptacle, comprising at least two openings each being composed of at least two connected part recesses, wherein each individual opening in its entirety is formed to be extending in a non-linear manner.

Abstract: The present invention relates to water treatment. In one example, there is provided a method of treating an aqueous system to inhibit growth of one or more micro-organisms therein and/or to reduce the number of live micro-organisms therein. The method includes adding treatment agents to an aqueous system wherein said treatment agents include: (a) a phosphonium compound; and (b) a compound having formula: M(XO2)n wherein: M is a Group I or Group II metal; X is a halogen; and n is 1 or 2.

Abstract: A blood filtering device has a filtration section with filter medium separating raw side and clean side. A first communication path connects raw side and a first variable blood reservoir volume; a second communication path connects raw side and a second variable blood reservoir volume coupled to a receptacle. When varying the first variable blood reservoir volume, blood contained therein flows through first communication path to raw side, plasma/serum passes through the filter medium from raw side to clean side, and residual blood flows from raw side through second communication path into the second variable blood reservoir volume. When varying the second variable blood reservoir volume, blood contained therein flows through second communication path to raw side, plasma/serum passes through the filter medium from raw side to clean side, and residual blood flows from raw side through first communication path into first variable blood reservoir volume.

Abstract: The present invention relates to a separation matrix, which comprises a support; extenders coupled to an outer part of said support; and ligands coupled to said extenders, wherein the part of the support to which the extenders are coupled constitutes less than 50% of the volume of the separation matrix. The invention also embraces a method of preparing such a separation matrix, as well as a process wherein the separation media is used.

Abstract: The invention relates to methods and apparatuses for treating a condensate stream from a condenser that contains odorous compounds, such as various condensate streams produced in a rendering process. In one embodiment, the condensate stream is treated by adding an oxidizer to the liquid condensate stream to oxidize odor-causing compounds in the stream prior to being treated in a waste water pre-treatment system. In this manner, the odor resulting from these compounds can be reduced or eliminated.

Abstract: A separation apparatus that includes a weir tank having a plurality of cells and fluid removal apparatus for each cell to remove the fluid from each cell. The fluid removal apparatus includes an actuator and an extension arm whose movement is caused by the actuator. In addition to the actuator and the extension arm, the fluid removal apparatus includes a plunger attached to the extension arm for selectively engaging a first opening in each cell. Furthermore, a method of removing fluid from the separation apparatus via the fluid removal apparatus.

Abstract: Apparatus is provided having a signal processor or signal processing module configured to receive signaling containing information about the quality of water in a ballast water tank recirculation treatment system, e.g., in a vessel, boat or ship; and determine information about a variable fluorescence treatment to the water in the ballast water tank recirculation treatment system, based at least partly on the signaling received, as well as provide corresponding signaling containing information about the variable fluorescence treatment. The apparatus may include a variable fluorescence device configured to receive the corresponding signaling and provide the variable fluorescence treatment, including providing ultraviolet (UV) light to the water in the ballast water tank recirculation treatment system.

Abstract: A treatment process for remediating a contaminated liquid containing more than 5 ppm hydrogen sulfide (H2S) and substantially without formation of precipitate, includes steps of steps of adding an aqueous solution containing at least one hydroxide compound at a collective concentration of 35-55 wt % to the contaminated liquid to achieve a concentration of 125-5000 ppm of the hydroxide compounds in the contaminated liquid, adding at least one organic acid and to the liquid to achieve a concentration of 0.01-10 ppm in the contaminated liquid, and dispersing the aqueous solution and the at least one organic acid in the contaminated liquid and allowing the aqueous solution and the at least one organic acid to react with the contaminated liquid for a period of time until a concentration of hydrogen sulfide in the contaminated liquid is reduced to ?5 ppm.

Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.

Abstract: A nonpowered mixing and coagulation basin is provided, which generates turbulences of at least two kinds inside the mixing and coagulation basin to which the raw water flows so that foreign matters contained in the raw water come into contact with each other while circulating by a water flow to be coagulated into a predetermined size, and a dissolved air floatation device using the same. The nonpowered mixing and coagulation basin has multiple stages with different packing materials and packing densities to form turbulent flows inside the raw water and control a flow speed, thereby uniformly mixing raw water and coagulant to enhance coagulation efficiency. The nonpowered mixing and coagulation basin simultaneously carries out mixing and coagulation at the front end part of the water treatment system, reduces equipment expenses by having no electric motor and agitator, and reduces power consumption because it does not use any power unit.

Abstract: A method of treating an organic contaminated material includes producing manganese oxide media in a first treatment system; and contacting the organic contaminated material with the manganese oxide media in a second treatment system. The manganese oxide media may be coated aggregate having a layer of manganese oxide. The manganese oxide media may be manganese oxide solids. The manganese oxide solids can be formed by removing at least a portion of the manganese oxide layer from the coated aggregate.

Abstract: A dechlorinating device includes a mixing chamber having an inlet and an outlet, and the dechlorinating device is configured to receive a fluid. The dechlorinating device also includes a dechlorinating conduit disposed within the mixing chamber and a recirculation zone disposed within the mixing chamber and positioned between the dechlorinating conduit and the outlet. A dechlorinating system includes a storage tank, an overflow pipe in fluid communication with the storage tank, and the dechlorinating device in fluid communication with the overflow pipe. A method of dechlorinating includes providing the dechlorinating device and feeding the fluid to the inlet of the dechlorinating device.

Abstract: A fast acting water purification system containing a source of silver ions which is suitable for use in personal or household water containers, where the non-potable water may contain halides or other materials that limit the solubility of silver in the non-potable water, with the purification agent including a source of silver ions and a compound containing a hydantoin ring increase the presence of silver ions in the non-potable water to a level sufficient to quickly kill harmful microorganisms in the non-potable water without the need to add additional biocides to the non-potable water or pretreat the non-potable water.

Abstract: Method and installation of thermal hydrolysis of sludges implementing a group of thermal hydrolysis reactors (71,72,73,74) characterized in that it comprises successions of cycles, each of these successions of cycles being dedicated to one of said thermal hydrolysis reactors, each cycle comprising: a step a) for conveying a batch of non-preheated sludges to be treated into a thermal hydrolysis reactor (71,72,73,74), said step for conveying comprising the continuous passage of the sludges of said batch of sludges into a dynamic mixer (3) into which recovery steam is injected; a step b) for injecting live steam into said thermal hydrolysis reactor (71,72,73,74) containing said batch of sludges so as to increase the temperature and the pressure prevailing in this reactor; a step c) of thermal hydrolysis of the batch of sludges in the thermal hydrolysis reactor; a step d) for emptying the content of the batch of hydrolyzed sludges of said thermal hydrolysis reactor towards a recovery vessel (13), and for concomit

Abstract: In an improved fiber-film type contactor/separator an enhanced coalescing zone is provided by the presence of a disengagement device connected to a shroud that contains a bundle of high surface area vertical hanging fibers, where the enhanced coalescing zone diverts a portion of an admixture of immiscible liquids to flow radially in a path not parallel to the vertical axis of the hanging fibers whereby the diverted portion of liquids contacts a coalescing surface to cause at least one of the liquids to coalesce into droplets. The immiscible liquids are allowed to settle into separate phase layers and first and second outlets selectively remove the higher density liquid from the lower density liquid.

Abstract: Disclosed are methods, apparatuses and systems for the remediation of contaminated soils, groundwater, water, and/or waste using a combination of reagents. The disclosed methods may be used to treat various recalcitrant halogenated substances, such as perfluoroalkyls and polyfluoroalkyls. Particular combinations of reagents that may be used in the disclosed methods include but are not limited to: (1) persulfate, oxygen and ozone; (2) persulfate, salt, oxygen and ozone; (3) persulfate, phosphate, and/or oxygen; (4) persulfate, phosphate, oxygen and ozone; (5) persulfate, phosphate, salt and oxygen (6) persulfate, phosphate, salt, oxygen and ozone; (7) oxygen and salt; and (8) air and salt. The disclosed methods may enhance destruction of organic contaminants in the liquid phase and may also control the rate of aerosol or foam formation relative to the rate of chemical oxidation and/or reduction/transfer.

Abstract: A method for reducing the amount of acrylamide in recovered water from a fryer stack. This invention provides a method to treat acrylamide in the waste water/process water. Organic compounds such as phenols, acrylamide and phenolic compounds can be oxidized in the presence of oxidizing compounds like hypo and Fenton reagent. Fenton reagent is a product of reaction of Iron Salts (like Ferrous Sulphate-FeSO4) and Hydrogen Peroxide (H2O2). It generates OH* (radical) which has significantly more oxidation power compared to traditional oxidizing agents such as Chlorine. The fryer stack water is collected and treated using Fenton reagent such that the Acrylamide levels are reduced to less than 0.1 ppb in the recovered water.

Abstract: A hospital faucet assembly is provided that includes an outlet adapted to direct a flow water stream into a sink. An ozone chamber is provided having a water inlet and a water outlet. A flow control valve is connected to the water inlet, and the water outlet is connected to the faucet armature. A sensor is provided which is adapted to control the flow control valve. An ozone generator is located within the chamber, and when a user activates the sensor, the valve opens allowing more water to enter the chamber and then travel out through the water outlet of the ozone chamber to the faucet armature which dispenses the water flow into the sink. A controller is provided and is connected to the control valve and the sensor. The controller is configured to run an automatic cycle on an occasional basis to flush the sink with ozone-rich water in order flush and/or disinfect water located in a trap of the sink drain, or provide other disinfecting functions.

Abstract: A method of treating water to oxidize organic contaminants comprises heat transfer system includes heating liquid water to a temperature of at least 190° F. at a pressure to keep the heated water in a liquid phase, and contacting the heated water with oxygen and an oxidation catalyst including a noble metal on a porous support comprising a bi-modal pore size distribution including pore sizes from 1 nm to 20 nm and pore sizes from 100 nm to 1000 nm. The resulting catalytic oxidation of the organic contaminants results in the release of gaseous reaction products resulting from the oxidation reaction, which are separated from the treated water in a phase separator to produce a treated water final product.