Abstract: A field-flow fractionation device includes a separation channel, a carrier fluid supplier, a separation membrane, a waste liquid chamber, a cross-flow flow rate adjuster, and a carrier fluid adder. The carrier fluid adder is configured to add, to a flow of a carrier fluid having passed through the separation membrane, a flow of another carrier fluid at a carrier fluid adding position set on an upstream side of the cross-flow flow rate adjuster so that the flow rate of the carrier fluid flowing into the cross-flow flow rate adjuster is larger than the flow rate of the carrier fluid having passed through the separation membrane.

Abstract: An ozone injector device comprising a housing having a water passageway through the housing, a corona tube disposed within the housing, an ozone inlet fitting coupled to the water passageway, the ozone inlet being in fluid communication with the corona tube via a corona discharge tube, and a clearing piston positioned to move into and out of the water passageway directly opposite the ozone inlet. The clearing piston is biased upwards, towards to the ozone inlet, and configured to prevent flow of ozone into the water passageway.

Abstract: Disclosed are compositions for use in the simultaneous removal of endotoxins from dialysate and uremic solutes from blood during the treatment of patients. The treatment is selected from the group consisting of hemodialysis and hemodiafiltration. The compositions comprise sorbent particles embedded in a membrane comprising a polymer and a hydrophilic additive.

Abstract: A device, system, and method for purifying a fluid is provided. The fluid purification device includes a tank, a cover and a release assembly. The tank having a hollow interior. The cover is sealingly coupled to the tank. The release assembly is pivotally coupled to the cover, the release assembly having a relief valve fluidly coupled to the hollow interior, the release assembly being movable between a first position and a second position, the relief valve being movable between an operating position, a released position and a non-operational position.

Abstract: The disclosure relates to water treatment systems that may be used to remove impurities from water, particularly systems that inserted at the point of entry of a water supply into a building.

Abstract: A self-supporting vacuum plumbing assembly for attaching a plumbing fixture to a vacuum-assist waste removal system may include an accumulator associated with the plumbing fixture for receiving and holding wastewater from the plumbing fixture. A wastewater outlet conduit, an air intake conduit, and a sensor conduit are configured with the accumulator as a unit, the unit being substantially rigid sufficiently self-supporting to be transportable in a peripherally frameless configuration.

Abstract: A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.

Abstract: The invention relates to a filter device (100), particularly a filter cartridge (10), for water filters in aircraft comprising a housing (11), wherein the housing (11) comprises an entry region (12) for water to be filtered and a discharge region (24) for filtered water, and wherein a first filter unit (26) and a second filter unit (27) are arranged in the housing (11). The first filter unit (26) comprises an activated charcoal filter (28) and the second filter unit (27) comprises a microfilter (30).

Abstract: Skimming devices may use pressurized water from, for example, a return line of a swimming pool or spa. The devices may be adjustable vertically and levelled relative to an upper water surface (waterline) of a pool. They additionally may create “blades” of debris-laden pool water entering their floating heads so as to move debris smoothly and efficiently over wings or foils into associated filters.

Abstract: Disclosed is a method for detecting chemotaxis of neutrophil, including: mixing a blood sample and an equal volume of glucose, mixing, and standing; taking a supernatant of the blood sample after standing into a centrifuge tube, and centrifuging; adding 1× calcium and magnesium ion-free HBSS into a centrifuged blood sample to re-suspend cell aggregates at bottom; uniformly blowing and dispersing a re-suspended bottom cell aggregates, and slowly adding a polysucrose solution from the bottom of the centrifuge tube to perform density gradient centrifuging treatment; dividing a density gradient centrifuged solution into three layers, pipetting a clear liquid at an upper layer and a PBMC layer at a middle layer to obtain cell aggregates at a bottom layer; lysing erythrocytes in the cell aggregates, then successively adding 2× calcium and magnesium ion-free HBSS and 1× calcium and magnesium ion-free HBSS, mixing, and centrifuging again to obtain neutrophils.

Abstract: A water purification apparatus (300) capable of being cleaned at a point of care, and methods for cleaning the water purification apparatus (300) at the point of care. The water purification apparatus (300) and the methods provide an efficient use of a heater (302) for heat disinfection the water purification apparatus (300), e.g. by recirculating heated fluid to further heat the fluid. Several different cleaning programs are provided that may be utilized for cleaning different parts of the water purification apparatus (300).

Abstract: A pipeline filter assembly comprising a base assembly, an outer wall, and a lid assembly. The outer wall has a lower end portion and an upper end portion, wherein the upper end portion comprises a lower collar, and the lower collar comprises at least one lock notch spaced around an exterior surface thereof. The lid assembly is configured to couple to the lower collar of the outer wall. The lid assembly has an upper collar configured to mate with the lower collar. The upper collar has at least one housing that is coupled to the upper collar, and at least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch. A pair of pipeline filter assemblies, wherein at least one connection plate is used.

Abstract: A bottle for use with a system for mineralizing drinking water has a body and an inner cap fixedly positioned in the opening of the body. The body has a neck extending outwardly therefrom. The neck defines an opening at the upper end of the body. The inner cap has an upper surface affixed over the opening of the body. The inner cap has an annular portion extending downwardly from the upper surface. The annular surface bears against an inner wall of the neck of the body. The inner cap has a receptacle opening at the upper surface. The inner cap has a channel extending downwardly therefrom so as to open to the interior volume of the body. A straw extends through the channel and into the interior volume of the body so as to have an end position in proximity to the bottom of the body.

Abstract: Increased control and efficiency over the wastewater purification can be achieved through creating conditions that allow the operator to selectively prioritize the digestive function of microorganism in the activated sludge. The gas-dispersion return sludge is created using pure oxygen or oxygen containing trace amounts of ozone as a reactive gas, which is blended with return sludge to create a mixture of gas and liquid, which is passed through an atomizer or a cavitation pump to instantly render the reactive gas to an ultra-fine bubble state. At least a portion of the ultra-fine bubbles dissolve within the gas-dispersion return sludge, activating the dormant microorganisms. Due to a complete or an almost complete absence of biodegradable material in the gas-dispersion return sludge, the microorganism prioritize their digestive function, and when exposed to biodegradable pollutants present in wastewater, digest the pollutants using biochemical pathways different from the ones used in nature.

Abstract: A liquid filter arrangement is provided, as well as methods of assembly and use. Advantageous features, relating to a preferred filter cartridge and a preferred slide arrangement, are provided.

Abstract: An apparatus and a method are provided for a high capacity oil filter configured to remove contaminants from engine oil flowing within an internal combustion engine. The oil filter comprises a hollow canister having a length and a diameter suitable for housing a large filtration medium. A base gasket forms a fluid-tight seal between the oil filter and the engine. A base plate circulates oil from the engine through the oil filter. An anti-drainback valve prevents oil from draining out of the filter and passages within the engine when the engine is not operating. A key aspect of the present disclosure is that the relatively large dimensions and the configuration of the filtration media provide a large surface area for entrapping contaminants flowing with the engine oil.

Abstract: Liquid solution concentration methods and related systems involving osmosis units and energy recovery are generally described. In some embodiments, an osmotic system has a pump, a first reverse osmosis unit, a second reverse osmosis unit, and one or more energy recovery devices. Various embodiments are directed to features such as balancing streams, recirculation streams, and/or valving that alone or in combination may afford improved energy efficiency and/or system performance. Some embodiments may improve performance of certain types of energy recovery devices in combination with osmosis units, such as isobaric or turbine energy recovery devices.

Abstract: System (100) and method of automatically controlling an active oxidant concentration (e.g. sodium hypochlorite) for a process of producing monochloramine comprising applying metered amounts of an oxidant solution and an amine solution to a defined area (114). An electrochemical measurement device is provided in association with the oxidant solution and prior to the defined area, N comprising at least first and second electrodes and an output terminal. A predetermined voltage potential is applied across the first and second electrodes, wherein an obtained amperometric measurement corresponds to a real-time concentration of the active oxidant in the oxidant solution. A feedback signal is generated based on the obtained measurement via the output terminal to a controller (108), which automatically regulates, in real-time and based at least in part on the control signal, the metered amount of oxidant solution provided to the defined area.

Abstract: A filter device with a removable termination part (81; 82) and a housing (3) that receives a replaceable filter element (5) having two end caps (25,47). Between the end caps, a filter material (12) extends. A positioning device (65) is arranged between the termination part (81; 82) and one end cap (47). The positioning device positions the filter element (5) within the housing (3), at least when viewed in the circumferential direction of the filter element, in interaction with at least one corresponding positioning element (71) of the end cap (47).

Abstract: Various example embodiments relate to a filtration system and methods for the installation and use of such a filtration system. According to a set of embodiments, the filtration system comprises a housing that defines a central compartment therein. The filtration system further comprises a filter cartridge positioned within the central compartment of the housing. The filter cartridge comprises a filter media and an identification element. The filtration system further comprises a sensor. The sensor is structured to sense the identification element of the filter cartridge. The filtration system further comprises a filter blocking mechanism communicably coupled to the sensor. The filter blocking mechanism is structured prevent installation of the filter cartridge into the housing unless filter cartridge information of the identification element sensed by the sensor is identified as corresponding to an authorized filter cartridge.