Abstract: A modular wall frame for a recycled water system, the modular wall frame includes a horizontal frame module, a vertical frame module, a greywater tank coupled to the horizontal frame or the vertical frame, at least one water consuming appliance drain coupled to the horizontal frame module, and at least one water consuming appliance water input coupled to the vertical frame module.

Abstract: A hydrodynamic cavitation system features a first stator, a second stator, a third stator, and a rotor, each having a plurality of indentations. The hydrodynamic cavitation system further includes a drive shaft, a variable speed motor, and a pump, wherein the pump circulates fluid through the hydrodynamic cavitation system while the drive shaft actuates the rotor, generating hydrodynamic cavitation between each stator and the rotor. Each of the plurality of indentations provides different regions to optimize overall hydrodynamic cavitation volume, increasing cavitation locations, which can coalesce to become a macro cavitation site and cavitation cloud. The hydrodynamic cavitation system removes bacteria, pathogens, viruses, fungi, cyanobacteria as well as breaks chemical bonds, effectively treating contaminated water and other fluids.

Abstract: Systems for removing grit from a slurry are disclosed. In some embodiments, a system includes a containment vessel, a separation assembly, and a removal assembly. Grit is separated from the slurry by the separation assembly, which allows the grit to settle out of the slurry as the slurry flows through the containment vessel. The separation assembly is configured to enable the grit to be driven by gravity downwardly toward the bottom surface of the containment vessel and into engagement with a separation conveyor. The grit is conveyed by the separation conveyor to a removal conveyor of the removal assembly. The removal conveyor conveys the grit out of containment vessel and out of a grit exit port. An effluent formed by the slurry with at least some of the grit removed is released from an outlet of the containment vessel.

Abstract: A blood treatment system with pressure sensors may be configured to control blood flow to and from the patient and use readings of the pressure sensors to determine a change in a pressure drop across a flow restriction in the blood circuit to estimate a condition of the machine or the patient, or outputting data responsive to the estimation. Further embodiments employ measurement of pressure drop to detect abnormal viscosity or viscosity variations in order to detect possible infection.

Abstract: The present invention provides an improved hydrothermal liquefaction process for managing and sequestering PFAS contaminants in waste materials.

Abstract: An ore dressing process for medium-grade and low-grade mixed collophanite includes the following steps: S1; crushing ores to obtain crushed ores; S2: screening the crushed ores to obtain fine-fraction ores and coarse-fraction ores divided into at least two size fractions; S3: performing a photoelectric separation to the coarse-fraction ores of different size fractions to obtain photoelectric separation concentrates and photoelectric separation tailings of each size fraction; S4: combining the photoelectric separation concentrates of the each size fraction to obtain pre-enriched concentrates; S5: combining the fine-fraction ores and the pre-enriched concentrates, and then performing an ore grinding to obtain minerals to be separated; S6: adding water to the minerals to be separated to obtain a floatation pulp, and then performing a floatation to obtain phosphate concentrates and tailings.

Abstract: The present invention relates to an acoustic wave transmission device for moving a fluid or fine particles inside the fluid to a desired position using acoustic waves, and more particularly, to an acoustic wave transmission device including an acoustic wave transmission medium that minimizes acoustic wave interference due to the acoustic wave transmission medium by reducing reflection and refraction that may be generated when acoustic waves pass through the acoustic wave transmission medium in which a fluid is accommodated, and a manufacturing method of the acoustic wave transmission medium.

Abstract: A media pack includes a filtration sheet and a support sheet that is made from a different material than the filtration sheet. The filtration sheet is coupled to the support sheet. The support sheet is corrugated such that, together, the filtration sheet and the support sheet form a plurality of channels. The channels are alternately sealed on opposing ends of the media pack. In one embodiment, the permeability of the support sheet is less than a permeability of the filtration sheet.

Abstract: A bidirectional flow pulse-based water body phosphorus removal apparatus and a method, and an organic nutrient soil. The water body phosphorus removal apparatus includes: a prefiltration unit, a bidirectional flow phosphorus removal filtration pool, a bidirectional water collection and distribution system, a filtration pool stratified gas pulse system, a water production tank and a control system. A filtration layer filled with a phosphorus removal filtration material is provided in the bidirectional flow phosphorus removal filtration pool.

Abstract: The invention generally relates to methods of removing potassium, rubidium, and/or cesium, selectively or in combination, from brines using tetrafluoroborates. Also disclosed are methods of producing potassium, rubidium, and/or cesium chlorides using ionic liquids and exchange media. This invention also generally relates to treated geothermal brine compositions containing reduced concentrations of silica, iron, and potassium compared to the untreated brines. Exemplary compositions of the treated brine contain a concentration of silica ranging from about 0 mg/kg to about 15 mg/kg, a concentration of iron ranging from about 0 mg/kg to about 10 mg/kg, and a concentration of potassium ranging from about 300 mg/kg to about 8500 mg/kg. Other exemplary compositions of the treated brines also contain reduced concentrations of elements like rubidium, cesium, and lithium.

Abstract: A filtration device includes: a filtration tank having a raw water inlet pipe and a backwash water discharge pipe connected to an upper portion thereof, and a treated water discharge pipe, a backwash water inlet pipe, and a backwash air inlet pipe connected to a lower portion thereof; a strainer provided in the filtration tank and having a plurality of water passage holes formed on a side surface thereof and a lower side in communication with the treated water discharge pipe; a filtration unit including a fiber filter medium forming a filtration pore layer on the outer circumferential surface of the strainer, an upper support portion coupled to an upper side of the fiber filter medium, and a lower support portion coupled to a lower side of the fiber filter medium; and a filtration control unit having a cylinder disposed inside the strainer and a piston elevating from the cylinder and controlling the porosity of the fiber filter medium by compressing or relaxing the fiber filter medium with respect to the stra

Abstract: A forward osmosis filtration cell is provided which includes a fluid passageway and a forward osmosis filtration membrane positioned within the passageway. The filtration membrane divides the fluid passageway into two chambers, a first chamber configured to hold a draw solution, and a second chamber configured to hold a feed solution. The filtration cell further includes a first electrode positioned in the first chamber, and a second electrode positioned in the second chamber. The first and second electrodes are configured to apply an electric field across the filtration membrane to prevent fouling on the filtration membrane. A method of using a forward osmosis filtration cell in a water treatment system, and a method of retrofitting a water treatment system with first and second electrodes are also provided.

Abstract: A system and method for reclaiming and treating groundwater collected from an underground level of a structure or building site to supply non-potable water to an end use system, such as an irrigation system, a pond, an equipment washing system, a cooling system, or a heating system. Groundwater seeps into such underground levels and has to be pumped out to prevent flooding the structure. Normally, this groundwater is discharged as a waste stream but can be treated for non-potable use using an three-stage treatment system comprising an ultrafiltration system, a water softener system, and a reverse osmosis system. The water softener system may be used or bypassed depending on acceptable TDS levels in the end use system and the TDS level of the reclaimed groundwater. Use of the system and method can save millions of gallons of groundwater per year per building site from being wasted.

Abstract: To appropriately infer changes over time in transmembrane pressure to perform an appropriate membrane filtration operation, without being bound by typical approach regarding the diffused air volume control.

Abstract: An eroding assembly for use in water-soluble chemical feeder where a solid chemical material is eroded by water so as to produce a sanitizing solution of dissolved chemical and water having removal components in its structure for ease of cleaning and removal of any undissolved chemical material, particularly the sieve plate and weir.

Abstract: The present invention relates to a system (5) for temperature management for patients in stationary and mobile ECLS and/or ECMO therapy, with at least one disposable (7) and a fluid circuit (9), wherein the disposable (7) comprises at least one reservoir (10) or bag provided with at least one supply line (12) and a drain line (14), further provided at least one pumping unit element (11) as part of the disposable (7), by means of which liquid in the reservoir (10) or bag can be pumped through the fluid circuit (9). Furthermore, the present invention relates to a disposable (7) for such a system (5).

Abstract: The present invention provides a fresh water generator operating method and a determination program that are employed in a method for cleaning a separation membrane module following membrane filtration, and that, while various cleaning steps such as reverse pressure cleaning, air cleaning, chemical solution cleaning are taking place after completion of the membrane filtration, determines cleaning troubles by calculating a temporal change in resistance increase rate on the basis of an increase in membrane differential pressure.

Abstract: A method and apparatus for producing water for pure water, the method and apparatus capable of efficiently adding agents to water to be supplied to a reverse osmosis membrane. The method for producing water for pure water includes: obtaining first treated water by adding a polyaluminum chloride to raw water containing free chlorine; obtaining second treated water by adding a reducing agent containing sodium disulfite as an active ingredient to the first treated water; and treating the second treated water with a reverse osmosis membrane.

Abstract: A device including a housing having a first side, a second side opposed to the first side, and a wall disposed between the first side and the second side. The wall forms at least a partially enclosed space inside the housing. The device also includes a membrane mounted to the wall inside the housing. The device also includes a drop pipe disposed inside the housing and through or around the membrane, the drop pipe having a proximal end and a distal end, the distal end being closer to the second side than the proximal end. The device also includes a diffuser connected to the distal end of the drop pipe.

Abstract: The present invention discloses a separation membrane based on a reactive support layer, a preparation method and an application, and belongs to the technical field of water treatment membranes. The preparation method includes: (1) subjecting a porous support membrane to an amino grafting reaction to prepare a reactive support membrane; and (2) subjecting an aqueous phase solution and an oil phase solution containing a multi-membered acyl chloride oil phase monomer to interfacial polymerization on the reactive support membrane to prepare a separation membrane based on a reactive support layer; where an aqueous phase monomer in the aqueous phase solution is a semi-aromatic amine or an aromatic amine. In the present invention, the porous support membrane is subjected to the amino grafting reaction to obtain the reactive support membrane, and the interface polymerization is carried out on a surface of the reactive support membrane.