Abstract: The present disclosure concerns a filter device for filtering source water for the purpose of obtaining potable water; and further concerns a method for assembly of such a device.

Abstract: Filtration systems and methods for removing a filter residue from a filter employed in filtering a liquid (for example, grey water). The filtration system may include a vessel having an inlet through which a liquid can be introduced during use and an outlet through which filtered clean liquid can exit. A filter configured to filter the liquid is disposed within the vessel between the inlet and the outlet. The filtration system may further include at least one transducer disposed on or adjacent to the filter. The at least one transducer may be configured to generate one or more pressure waves effective to dislodge at least some residue materials collected on an upstream side of the filter.

Abstract: In accordance with the present invention, problems related to produced water management are addressed. The proposed produced water evaporation system incorporates several simple components in a closed system to achieve a safe and effective produced water reduction alternative that can be efficient and sustainable on active natural gas well pads.

Abstract: The present invention relates to an iodine (I2) or bromine (Br2) adsorbent including a zeolite having a Si/Al ratio of 15 or greater; an I2 or Br2 carrier including the I2 or Br2 adsorbent; a column filled with the I2 or Br2 adsorbent; a article composed of the I2 or Br2 adsorbent or having the I2 or Br2 adsorbent attached thereto; a method for adsorbing or removing I2 or Br2 using the I2 or Br2 adsorbent; an iodine- or bromine-containing zeolite composite including a porous zeolite and iodine (I2) or bromine (Br2) confined in the pores of the zeolite; a semiconductor material including the iodine- or bromine-containing zeolite composite; and a method for preparing an iodine- or bromine-containing product using the iodine- or bromine-containing zeolite composite.

Abstract: A functionalized asphaltene, obtained by refluxing with an acid solution. The functionalized asphaltene contains elevated levels of oxygen content due to nitration and oxidation of the refluxing process. The refluxing process also imparts organic functional groups including at least amines, nitro groups carbonyl groups, carboxylic groups and hydroxyl groups to the functionalized asphaltene, and these functional groups are attached to, thereby coating the surface of a functionalized asphaltene particle. A method for removing dye compounds from an aqueous sample with the functionalized asphaltene is also described.

Abstract: The present invention is a method for eliminating radioactive iodine using a hydrophilic resin that adsorbs radioactive iodine, wherein the hydrophilic resin is at least one selected from the group consisting of a hydrophilic polyurethane resin, a hydrophilic polyurea resin, and a hydrophilic polyurethane-polyurea resin and has a hydrophilic segment and, in the principal chain and/or a side chain in the structure thereof, has a tertiary amino group or has a tertiary amino group and polysiloxane segment. By means of the present invention, a novel method for eliminating radioactive iodine is provided that is simple and low-cost, furthermore does not require an energy source such as electricity, moreover can take in and stably immobilize the eliminated radioactive iodine within a solid, and is capable of reducing the volume of radioactive waste as necessary.

Abstract: An apparatus including a screen capable of separating solids from a liquid-solid mixture and a first probe disposed beneath the screen. The first probe is provided to determine a position of a beach between the liquid-solid mixture and separated solids. The apparatus may measure a property of a local volume of a probe disposed beneath a first separator deck. The probe may then send a first signal to database. Based on the signal a location of a beach may be determined.

Abstract: In accordance with the present invention, problems related to produced water management are addressed. The proposed produced water evaporation system incorporates several simple components in a closed system to achieve a safe and effective produced water reduction alternative that can be efficient and sustainable on active natural gas well pads.

Abstract: Embodiments of a gravity filter for potable water comprise a loose filter bed comprising ion exchange resin particles and activated carbon particles, and a porous non-woven filter substrate disposed downstream of the loose filter bed, wherein the porous non-woven filter substrate comprises an impregnated heavy metal scavenger.

Abstract: Systems, devices, and methods of filtering water utilize an integrated gravity-fed, dual ion-exchange filtration bottle. Flow-through multi-stage filtration technology is applied to a personal water bottle. The system filters water from an upper unfiltered water reservoir through a multi-stage filter to a lower filtered water reservoir. A user then drinks from the lower reservoir. The bottle includes a cap with a filtered water outlet through which filtered water in the lower reservoir is accessed with a straw, spout, or other access device. The cap includes an unfiltered water inlet to allow filling and refilling of the upper reservoir without disassembling the bottle. The bottle includes a filter vent that eliminates air locks and partial vacuum that can develop when unfiltered water drains from the upper reservoir through the filter to the lower reservoir. This gravity-fed dual ion-exchange filtration system allows for more complete removal of dissolved solids.

Abstract: A filter material having a function of adsorbing and fixing arsenic and heavy metals and usage thereof. The filter material includes a porous ceramic substrate with porosity of 35%-85%, and zero-valent iron nanoparticles formed in situ within the porous ceramic substrate. The porous ceramic substrate has micropores of 2-10 micron, and fluffy amorphous silicon-iron-carbon structure is formed within each micropore. At least 25 wt % of ceramic component constituting the porous ceramic substrate is diatomaceous earth, and the fluffy amorphous silicon-iron-carbon structure within the micropore can form an adsorption film after water absorption. In the microstructure, the filter material obtained is configured as a porous and fluffy nose-like filter structure and generates an adsorption film, thereby greatly improving adsorption efficiency and adapting to changes in water quality and chemical environment.

Abstract: Methods and nanocomposites for the adsorptive removal of aromatic hydrocarbons such as benzene, toluene, ethyl benzene and xylene from contaminated water sources and systems are provided. The nanocomposites contain carbon nanotubes and metal oxide nanoparticles such as Al2O3, Fe2O3 and ZnO impregnated on a surface and/or in pore spaces of the carbon nanotubes. Methods of preparing and characterizing the nanocomposite adsorbents are also provided.

Abstract: An apparatus for use in a filter system for filtering water or wastewater. The apparatus preferably includes at least one underdrain lateral having at least an inner chamber, a first outer chamber and a second outer chamber. The first outer chamber and the second outer chamber are preferably in fluid communication with the inner chamber. The inner chamber, the first outer chamber and the second outer chamber are preferably formed by an inner liner and an outer liner. The outer liner is a separate piece from the inner liner and surrounds the inner liner. The inner chamber is preferably configured to simultaneously receive a liquid and a gas during a washing procedure including simultaneous use of a liquid and gas to clean a filter bed to create a liquid and gas interface in the inner chamber.

Abstract: A mobile processing system is disclosed for the removal of radioactive contaminants from nuclear process waste water. The system is fully scalable, modular, and portable allowing the system to be fully customizable according the site-specific remediation requirements. It is designed to be both transported and operated from standard sized intermodal containers or custom designed enclosures for increased mobility between sites and on-site, further increasing the speed and ease with which the system may be deployed. Additionally, the system is completely modular wherein the various different modules perform different forms or stages of waste water remediation and may be connected in parallel and/or in series. Depending on the needs of the particular site, one or more different processes may be used. In some embodiments, one or more of the same modules may be used in the same operation.

Abstract: The GURU-BRAHMA filter for purifying drinking water is a passive multi-stage multi-media filter for use in water purification. The GURU-BRAHMA filter for purifying drinking water removes harmful contaminants from a water stream including, but not limited to, toxic heavy metals and metalloids, pharmaceutical residues, microtoxins, endocrine disrupters, chlorinated and other halogenated solvents, fluoride, nitrate, and naturally occurring radioactive contaminants. The GURU-BRAHMA filter for purifying drinking water maintains concentrations of beneficial phyto-chemicals including, but not limited to flavonoids, phytosterols, tannins, polysaccharides, saponins, polyacetylenes, that provide many health benefits including natural cleansing of the blood and the liver and protection against the accumulation of bacteria, fungus, and viruses. Water processed through the GURU-BRAHMA filter for purifying drinking water meets United States, European Union and World Health Organization standards for safe drinking water.

Abstract: Method for treating water, containing organic matter characterized in that it comprises a step of adsorption of the organic matter contained in said water, in which this water is put into contact with an amagnetic ion-exchanging resin in an infinitely stirred tank (1); the filtering of the mixture of water and resin within the tank (1) and the discharging of filtered water from this tank, the filtering being implemented through at least one screen (4) provided within the tank (1) enabling the resin to be contained in the infinitely stirred tank; the periodic cleansing of the screen (4) consisting of the separation, from this screen, of the saturated resin that has collected thereon; the drawing off (18) of saturated resin from the tank (1); the regenerating (6) of at least a part of the saturated resin thus drawn off; the recycling (7) of said resin thus regenerated in the tank (1); a step of ballasted coagulation/flocculation (12, 13) and separation (14) comprising the addition of coagulant reagent (12b), fl

Abstract: A method and system used to purify water that removes or reduces volatile organic compounds, calcium carbonate, cyanuric acid, and sodium bicarbonate from water to acceptable levels.

Abstract: An adsorption carrier-packed column includes a central pipe, adsorption carrier, plate A, and plate B, wherein an insertion material C is inserted between the adsorption carrier and the plate A; an insertion material D is inserted between the adsorption carrier and the plate B; the ratio of the deformation rate of the insertion material C (C1) to the deformation rate of the adsorption carrier (E0) is 1<C1/E0<10, and the ratio of the deformation rate of the insertion material D (D1) to the deformation rate of the adsorption carrier (E0) is 1<D1/E0<10; and the ratio of the thickness of the insertion material C (TC) to the distance of a gap between the adsorption carrier and the plate A (LA) is 1.1<TC/LA<4, and the ratio of the thickness of the insertion material D (TD) to the distance of a gap between the adsorption carrier and the plate B (LB) is 1.1<TD/LB<4.

Abstract: The invention relates to a process and a device for enriching water, in particular drinking water, with magnesium ions. In order to enable enrichment of water with magnesium ions in exchange for calcium ions and/or heavy metal ions during treatment of water, and in particular of drinking water, it is proposed according to the invention to pass the water through an ion exchanger which contains a weakly acidic ion exchange material, wherein at least a part of its ion exchange capacity is loaded with magnesium ions.

Abstract: A cartridge for treating drinking water, comprising two chambers, wherein one chamber is filled with a highly acidic ion-exchange material and another chamber is filled with a weakly acidic ion-exchange material, wherein one of the ion-exchange materials is loaded with alkali ions or alkaline earth ions.