Abstract: A solid-bowl centrifuge screw with a screw hub with a first welding layer applied to a base, and at least a second welding layer applied to the first welding layers. Thus, the screw hub is produced by a shaping build-up welding method.

Abstract: The invention provides an irradiation device (1) designed to be mounted to an irradiation reactor (20), comprising: an irradiation source (2), preferably an UV-LED, mounted on a heat conductive substrate (3); a disk-like heat sink (4) configured to removably receive the conductive substrate (3) such that heat transfer from the substrate (3) to the heat sink (4) is possible at a contact surface (4a) and such that the irradiation from the irradiation source (2) can pass through an opening (5) of the heat sink (4) into aninterior volume (21) of the irradiation reactor (20) when the irradiation device (1) is mounted to the irradiation reactor (20), wherein the opening (5) of the heat sink (4) is closed by a quartz window (6); fixation means (7) releasably biasing the substrate (3) against the contact surface (4a) of the heat sink (4); and a fluid channel (8) extending along and/or through the heat sink (4), wherein the fluid channel (8) is arranged to communicate with a fluid inlet or outlet port (22) of the irra

Abstract: A centrifugal apparatus includes: a bowl including a plurality of projection portions provided in a standing manner at an edge portion of an opening portion, the plurality of projection portions each including a curved surface portion bulging toward a rotation axis; a screw conveyer; a hub forming separate matter discharge ports between the respective circumferentially adjacent projection portions; and wear-resistant sleeves. The wear-resistant sleeves each includes a sleeve body that is formed in an arched shape along the corresponding curved surface portion and covers the curved surface portion; and a claw portion including one end connected to one end portion, in a longitudinal direction perpendicular to the axis direction, of the sleeve body. The claw portion is in contact with an outer surface of the corresponding projection portion and fixed to the outer surface via a detachable tool for fixing, and an insertion opening for inserting the projection portion.

Abstract: A passive filter cell having a basin with a floor and two or more vertical or upright sidewalls forming chute or container having first or left sidewall, second or right sidewall, and third or back sidewall, and fourth or front downwardly curved sidewall, an inlet positioned proximate a top of the fourth or front sidewall and an outlet positioned proximate the top of the third or back sidewall, wherein the floor is configured angled from the fourth or front sidewall to the third or back sidewall, discharge pipe positioned proximate junction between the floor and the third or back sidewall, and lip configured to extend from the top of the third or back sidewall into an interior of the basin.

Abstract: A solid-bowl centrifuge screw with a screw flight is provided. The screw flight has at least a first welding layer on a base body of the solid-bowl centrifuge and at least a second welding layer on the first welding layer. Thus, plural welding layers are disposed successively on one another and are applied by shaping build-up welding.

Abstract: Automated systems to make target compounds from slide stainer waste streams inactive utilizing advanced oxidation processes are described herein. Advanced oxidation processes are promoted by UV irradiation and further accelerated by use of radical initiators, such as hydrogen peroxide. The automated systems further include mechanisms for segregating components of the waste streams.

Abstract: A process of dissolving into to-be-treated water a peroxodisulfate and metal ions other than ions of alkali metals is performed by pouring equipment. An ultraviolet irradiation apparatus performs a process of treating the to-be-treated water, having the peroxodisulfate and the metal ions other than ions of alkali metals dissolved therein, with ultraviolet rays. By performing UV treatment on the to-be-treated water having the peroxodisulfate and metal ions dissolved therein, the inventive method and system achieve improved TOC decomposing performance and thus can particularly decompose a urea component in an efficient manner. Further, the to-be-treated water may be treated with an ion-exchange resin at a subsequent stage in such a manner that organic acids contained in the to-be-treated water having been subjected to the UV treatment are adsorbed to the ion exchange-resin, with the advantageous result that the concentration of TOC present in the to-be-treated water can be reduced.

Abstract: Energy-efficient separation of particulates from fluids is based on determining particulate mass removal as a function of applied energy. Energy-efficient ultrasonic field powers and exposure durations are applied to a particulate containing fluid, and particles removed. In some cases, ultrasonic exposures are selected that provide the maximum particulate removal per applied energy.

Abstract: A method for electrochemical treatment of water is provided. The method includes providing a flow-through reactor including a cathode and an anode, wherein the anode includes about 80 weight percent or greater of a sub-stoichiometric titanium oxide. The method further includes applying power to the cathode and the anode, passing a solution including water and a metal chloride through the flow-through reactor, and withdrawing the purified water.

Abstract: A portable water bottle includes a water bottle body having water stored therein; and a sterilizing module for irradiating the inside of the water bottle body with sterilizing ultraviolet rays. The sterilizing module further includes a housing having an ultraviolet outlet through which the sterilizing ultraviolet rays pass; a light source module for emitting the sterilizing ultraviolet rays; and a power storage member for supplying power to the light source module.

Abstract: A treatment system for treating a liquid containing contaminants is provided. The system can include a separation apparatus, an oxidation reactor and a power supply. The separation apparatus can include: a housing capable of maintaining a pressure of 50 psi or greater in an interior space; an inlet; an outlet; and an electrode assembly provided in the housing. The oxidation reactor can include: a housing defining an interior space; an inlet oriented to induce swirling in an incoming flow of liquid in the interior space of the housing, the inlet connected to the outlet of the separation apparatus; an ozone port leading into the housing; an outlet; and a conduit connected at a bottom end to the outlet and extending vertically in the housing to an opening at a top end. The power supply operative to supply a voltage to the first and second electrical conductors of the separation apparatus.

Abstract: A self-emptying separator includes a rotatable drum with an inlet, a liquid outlet, outlet openings for solid material, and a control system. A flowable starting product is cleared of the solids in continuous operation in a centrifugal field in the rotating drum. A continuous discharge of a clear phase is performed. A solid phase is discharged via the outlet openings from a solids collecting space of the drum into an annular solids catcher. The solids catcher has a device for generating a fluid curtain against which the solids, issuing from the outlet openings for solid material, impact.

Abstract: Provided is a centrifugal field-flow fractionation device in which a liquid sample is less likely to leak from a channel and attachment and detachment work of a channel member is facilitated. By integrally forming an outer peripheral surface 162 and an inner peripheral surface 163 of a channel member 16, the channel member 16 is configured as one hollow member having a channel 161 formed inside. Thus, pressure resistance performance of the channel member 16 is improved, formation of a gap in the channel 161 can be prevented, and deterioration in sealing performance due to secular change is not generated. Accordingly, a liquid sample is less likely to leak from the channel 161. Further, since the channel member 16 can be handled as one member, attachment and detachment work of the channel member 16 is facilitated.

Abstract: An adaptive electrokinetic dewatering system for dewatering slurry and soil deposits, including tailings deposits and a control system therefor. The control system automatically determines an optimal applied power specification, including sets of power parameters to be applied to the deposit being dewatered and when to apply each set of power parameters during the electrokinetic dewatering process. Furthermore, the control system automatically adjusts the applied power specification throughout the course of the dewatering process to account for the changing properties of the deposit. The control system determines the applied power specifications and adjustments to be made to them by simulating the electrokinetic dewatering process using a simulator which incorporates the latest measurements of the electrical, physical and chemical properties of the deposit being dewatered.

Abstract: Embodiments relate to systems, chambers, and methods for processing particles by washing, concentrating, and/or treating the particles. Some embodiments provide for the processing of cells that may be in a liquid medium (e.g., a liquid in which the cells were grown) and are processed by being washed and concentrated for later use in research or other therapies.

Abstract: A centrifugal separator for cleaning gas containing contaminants includes a stationary casing, enclosing a separation space through which a gas flow is permitted, a gas inlet extending through the stationary casing and permitting supply of the gas to be cleaned, a rotating member including a plurality of separation members arranged in said separation space and being arranged to rotate around an axis of rotation, a gas outlet configured to permit discharge of cleaned gas and including an outlet opening through a wall of the stationary casing, a drainage outlet configured to permit discharge of liquid impurities separated from the gas to be cleaned, and a drive member, for rotating the rotating member.

Abstract: A UV reactor for disinfecting water. The UV reactor may include a cooling chamber in which heat from a UV source may be transferred to the water flowing through the UV reactor. The UV reactor may include driver circuitry operable to determine status information, such as health, of the UV source. The UV reactor may include a gas discharge path operable to substantially prevent accumulation of gas within a water treatment chamber.

Abstract: A water treatment apparatus includes: a treatment tank, having therein a grounded electrode and a high-voltage electrode opposing the grounded electrode, for generating electric discharge between both the electrodes, and causing to-be-treated water to pass between the electrodes and contact with the electric discharge to perform water treatment, an ozone mixing portion for supplying ozone-containing gas in the treatment tank through a gas sending portion to the to-be-treated water supplied from outside, and a gas returning portion for sending gas in the ozone mixing portion to the treatment tank, are provided, and water treatment is performed by ozone in the ozone mixing portion, and water treatment is thereafter performed by the electric discharge in the treatment tank.

Abstract: An exchangeable separation insert and a modular centrifugal separator are disclosed. The insert includes a rotatable rotor casing and a first stationary portion. The rotor casing delimits a separation space and includes frustoconical separation discs. The first stationary portion is biased in a first direction away from the rotor casing along an axial direction.

Abstract: A hydrodynamic cavitation unit for a hydrodynamic cavitation device is provided. The hydrodynamic cavitation device is configured for fluid communication with an inlet conduit and an outlet conduit and may include an expansion chamber downstream of the inlet conduit. The hydrodynamic cavitation unit includes a body; and a plurality of lumens through the body. Each of the lumens is configured for fluid communication from the inlet conduit, through the body, and to the outlet conduit. A ratio of a total cross-sectional area of the lumens to a cross-sectional area of the inlet conduit is about 1:1 in at least a first point in the body, less than 1:1 in at least a second point in the body, and greater than 1:1 in at least a third point in the body. The hydrodynamic cavitation unit may include a cap or a vortex unit including the cap. The vortex unit may extend into the expansion chamber. The at least one lumen may include a constriction relative to the inlet conduit.