Abstract: A method of managing ionization for biofouling control in a water intake system that includes channeling a supply water stream through an electrochemical cell, monitoring at least one parameter of the supply water stream, determining an ion concentration threshold for the supply water stream based on the at least one parameter, and controlling the electrochemical cell such that ions are discharged into the supply water stream. The electrochemical cell is controlled such that an ion concentration of a treated water stream discharged from the electrochemical cell is greater than the ion concentration threshold.

Abstract: The present disclosure is directed to filtering technologies that combine elements of continuous and batch NF/RO based on the constraints of the end-user facility to achieve a target balance between, for instance, recovery and power consumption, and to reduce long term operating cost of a plant. A method for extending batch operation into a second induction period with antiscalant injection is also disclosed herein, with the second induction period allowing for yet higher water recovery.

Abstract: The present specification provides a dialysate management system for generating, weighing, and heating a dialysate fluid during a dialysis treatment. The dialysate management system includes a container and base enclosure. A bottom surface of the container rests within the base enclosure, which is configured to weigh the fluid in the container and measure its conductivity. The fluid may be heated using a heater integrated into the base enclosure or positioned in-line with a fluid pathway. The base of the container is preferably sloped and positioned within the internal volume of the container is a disposable prescription bag having a predefined quantity of prescription compositions that dissolve when water is poured into the container.

Abstract: A method is provided for the treatment of waste streams resulting from the processing of hydrocarbons that contain naphthenic acids, for example desalter brine resulting from the extraction or production of hydrocarbons from an oil sands reservoir. Naphthenic acids can be removed from these streams by removing oil-wet solids from the waste stream prior to conventional waste water processing, and the oil-wet solids can further be independently remediated to reduce naphthenic acid concentration for disposal.

Abstract: The invention relates to a medical treatment device comprising a fluid system, which has a monitoring apparatus 27 for monitoring the treatment device, wherein the monitoring apparatus 27 is configured such that monitoring is based on the evaluation of the pressure in the fluid system of the medical treatment device. The invention further relates to a method for monitoring a medical treatment device, in which monitoring is based on the evaluation of the pressure in the fluid system. The treatment device is characterised by a compliance-determining apparatus 28 for determining the compliance in the fluid system, part of the fluid system or parts of the fluid system, wherein the compliance-determining apparatus 28 cooperates with the monitoring apparatus 27 in such a manner that the pressure-based monitoring takes place depending on the compliance of the fluid system.

Abstract: A filter arrangement with a top element and a bottom element and a filter element therebetween captures oversized particles on the upper surface of the filter element and tangentially rinses these particles using an elution fluid to provide a concentration of particles in a relatively low volume of fluid for further analysis. In an intermediate step, the particles captured by the filter may be rinsed with a rinsing fluid such as water to pass additional undersized particles through the filter, thereby providing a purer sample. To improve efficiency, check valves may be used for passageways with one-way flow. Additionally, a configuration of three-way stopcocks may also be utilized. Finally, a sandwich arrangement is possible, wherein a single bottom element is sandwiched between two opposing top elements.

Abstract: A filter component includes a cartridge portion including a filter media, and a plug assembly on which the cartridge portion is mounted and in fluid communication with the cartridge portion. The plug assembly comprises a first plug and a second plug, the first plug being larger than the second plug. The second plug is fixed to an inner surface of the first plug in an installed state and is removable from the first plug in a draining state. The first plug further defines a drain port, wherein in the installed state the second plug plugs the drain port and in a draining state the second plug is removed from the first plug to permit draining fluid through the drain port. The filter component may be incorporated into a hydrostatic transmission to permit controlled draining of fluid from the hydrostatic transmission that does not result in an oil mess.

Abstract: A filter element includes a first end cap, a second end cap, and a ring of filter media disposed between the first end cap and the second end cap. The ring of filter media circumscribes a central cavity. The filter element also includes an air-bleed conduit axially extending through the central cavity. The air-bleed conduit includes a first portion integrally formed with the first end cap and a second portion integrally formed with the second end cap. The second portion is configured to fluidly connect to the first portion.

Abstract: A feedwell design for a clarifier that may better dissipate the entrance energy of feed slurry liquid exiting the feedwell and entering the clarifier. Plates having a surface area twisted around a longitudinal axis may be provided at the bottom of the feedwell. The plates may cause a change in the flow direction of the feed, from being mostly horizontal to mostly vertical, to slow the slurry. The provision of plates at the bottom of a feedwell in a clarifier may advantageously reduce the velocity of the materials entering the clarifier, or may increase the uniformity of the flow rate of the materials while reducing or maintaining the amount of shear force, turbulence, or other forces that may have a detrimental effect on clarification. Likewise, this may improve the rate at which solids settle out of the feed slurry solution, and thus improve the clarity of the removed liquid.

Abstract: A system for filtering fluids includes a primary filter (2) having at least one filter element that can be penetrated in one direction during the filtration process and can be penetrated in the opposite direction for a backflushing process. An aftertreatment device (36) is mounted downstream of the primary filter (2) for the backflushed quantities discharged by the primary filter to be processed and includes at least one filter chamber (11) that holds the backflushed quantities and that has a fluid inlet, a fluid outlet and at least one aftertreatment filter element (19). A control device (9) delivers one portion of the backflushed quantity at a time to the associated aftertreatment filter element (19).

Abstract: A container includes a dry concentrate designed such that the dry concentrate forms an acid liquid concentrate, or a part of an acid liquid concentrate, which is suitable for manufacturing a dialysis solution, on the dissolution of the dry concentrate in a liquid, preferably in water.

Abstract: A system for concentrating particulate mixtures of hydrophobic and hydrophilic material in a fluid medium is presented. The system comprises a separation chamber comprising three or more processing compartments in series. Each processing compartment comprises a manifold for the introduction of teeter water that comprises a mixture of water and air bubbles, suspended solids that form a fluidized bed that is created by the upward movement of the teeter water through the suspended solids; and each processing compartment is independently operable. An overflow launder is located above the separation chamber and a dewatering compartment is located beneath the separation chamber.

Abstract: A filtering device for removing dirt particles and contaminants from a plastic melt is disclosed. The filtering device includes a housing having a filter chamber, an inlet for feeding plastic melt, an outlet for channeling plastic melt out, and a dirt outlet for discharging dirt particles from the housing. The filtering device also includes a filter element arranged in the filter chamber to retain any dirt particles contained in the stream of melt, and a cleaning unit for cleaning the filter element of dirt particles retained by means of the filter element. The cleaning unit having a cleaning head with a scraper member for detaching dirt particles from the filter element. The scraper member is coupled to a servomechanism to press the scraper member onto the surface of the filter element. The servomechanism has at least one bellows cylinder including a foot section, a head section, a deformable bellows element, and a pressure chamber of variable volume.

Abstract: A ballast water treatment apparatus equipped with devices for injecting bromine salt and ozone includes a ballast pipe, a ballast pump, a bromine salt injection part and an ozone processor, wherein the injection part includes a bromine salt storage tank; a bromine salt transfer pipe connected to the ballast pipe for injecting bromine salt supplied from the bromine salt storage tank into the ballast pipe; and a bromine salt injection pump in the transfer pipe for pressurizing bromine salt to be injected into the ballast pipe, and the ozone processor includes an ozone injection device for supplying ozone to the ballast pipe; a mixer in the ballast pipe for mixing ozone supplied from the ozone injection device and seawater transferred into the ballast pipe; and an ozone transfer pipe connected to the mixer of the ballast pipe for injecting ozone supplied from the ozone injection device into the ballast pipe.

Abstract: A blood treatment filter includes a housing having a first resin sheet and a second resin sheet, a filter member disposed in the housing, a peripheral edge molded body formed on a peripheral edge portion of the filter member and having an inner peripheral portion joined to an outer peripheral end edge of a filtering material, and a connection sheet extending outward from the peripheral edge molded body and connected to the housing.

Abstract: The filter element of a filter has an internal face, an external face, a filtering mesh, two concentric circular inner and outer edges between which the filtering mesh extends, and radial ribs provided on the internal face. The radial ribs extend between the concentric edges and are distributed circumferentially in order to form sectors on the internal face. The filter element is configured to be assembled against a corresponding filter element so that the internal face faces the corresponding filter element. At least some of the sectors have a reinforcing rib connecting a radial rib to the outer edge, the reinforcing rib having a portion that is inclined, when viewed in the radial plane, with respect to the radial rib and to the outer edge.

Abstract: Support and drainage materials, each comprising an element comprising a section having a first end and a second end, and a first major surface, and a plurality of parallel tapered flow channels extending from the first end to the second end, the tapered flow channels comprising tapered side walls arranged in parallel and projecting upwardly from, and perpendicular to, the first major surface, the tapered flow channels having a deeper end and a shallower end, and being deeper at the first end of the section than at the second end of the section, wherein the tapered flow channels are connected at the first end with a cross member, and connected at the second end with a cross member, filters including the materials, and methods of use are disclosed.

Abstract: A dialysis machine which monitors the pressure of blood entering and leaving a patient's body using several sensors (37, 39) and adapts the pressure of a dialysate solution feed to compensate for compliances in the dialysate fluid flow path. As a consequence, better flow balance is maintained throughout dialysis treatment leading to a more uniform removal of waste materials from the blood.

Abstract: A membrane surface monitoring system (MSM) and membrane surface monitoring cell for direct and unambiguous detection of membrane surface fouling and mineral scaling. The system includes a membrane surface monitoring system cell, a control valve, a retentate flow meter/transmitter and a controller. The MSM cell has a visually-observable membrane, an edge-lit light guide, an edge illumination light source, a retentate module, and a permeate module. A pressurized inlet stream is fed into the MSM cell. The feed contacts a membrane sheet, leading to membrane-based separation operation to produce retentate and permeate streams. The MSM cell integrates surface illumination and imaging components to allow direct real-time visualization and spectral imaging of the membrane surface in real time. The pressure on the feed-side of the MSM cells is approximately that of the membrane plant element being monitored such that the plant control system can adjust plant operating conditions.

Abstract: The present disclosure is directed toward a suction nozzle operable to remove solid contaminants from a fluid without causing a substantial increase in fluid resistance. The suction nozzle has a vertical flow path, a contaminant precipitation recess opened upward under the vertical flow path, and a lateral flow path extending laterally from the vertical flow path at a position above the contaminant precipitation recess. The fluid sucked from a suction opening in the lower surface is led to the vertical flow path through the lateral flow path and flows upward through the vertical flow path to reach a connection port. With fluid flowing through the vertical flow path, solid contaminants contained in the fluid settle down by gravity and precipitate in the contaminant precipitation recess and are separated and removed from the fluid.