Thu, 23 Feb 2017 08:00:00 ESTA fluid separation system is provided for separating a plasma-containing fluid into separated plasma and a concentrated fluid. The system cooperates with a fluid flow circuit including a fluid separation chamber and a plasma outlet line associated therewith for removing separated plasma from the fluid separation chamber. The system includes an optical sensor assembly that receives a portion of the plasma outlet line when the fluid flow circuit has been associated with the fluid separation system. To ensure proper installation of the plasma outlet line, the optical sensor assembly compares light received by its light detector to a baseline value, which is indicative of the amount of light received by the light detector before the plasma outlet line has been installed. The amount of received light being equal to or less than a selected percentage of the baseline value indicates that the plasma outlet line has been properly installed.
Thu, 23 Feb 2017 08:00:00 ESTA weir grate (10, 100) comprises a base tray (12, 112) having an outlet (14, 114), and an infill tray (16, 116) positionable in the base tray. The base tray comprises a plurality of discretely positioned posts (22, 122) projecting upwardly therefrom in use. The infill tray comprises a plurality of correspondingly positioned locators (40, 140) projecting downwardly therefrom in use. Each locator is arranged for engaged with a respective post when the infill tray is positioned in the base tray.
Thu, 23 Feb 2017 08:00:00 ESTA curb inlet filter adapted to work in conjunction with a curb inlet comprised of permeable filter fabric fashioned generally in a V cross section, comprising an upper and lower fabric layer separated by one or more gussets. A user inserts the curb inlet filter into a curb inlet and may apply pressure to push the filter into the curb inlet causing the gussets to compress as the invention enters the curb inlet and resulting in a press fit between the gussets supporting the upper and lower permeable filter fabric layers. The compression fit retains the inlet filter into place and the curb inlet. Water may pass through the permeable filter fabric, while the permeable filter fabric prevents sediment and other unwanted debris from entering the storm water drainage system.
Thu, 23 Feb 2017 08:00:00 ESTA skimming device configured to collect and store floating debris captured from the surface of a body of water. The skimming device includes a debris collector having an enclosed body defining an opening for receiving and storing captured debris therein; a skimming device movement member configured to move the skimming device in the body of water; a debris movement member configured to capture floating debris from the body of water and pass the captured debris into the debris collector; and a housing that surrounds the debris collector and skimming movement member such that the two endless belts of the skimming movement member extend above and below the housing. The debris includes at least one of liquid debris such as floating petrochemicals, semi-solid debris, and/or solid debris.
Thu, 23 Feb 2017 08:00:00 ESTThe apparatus is for use with an oil slick. The apparatus includes a rolling vehicle having a vehicle frame; a lift system supported by the vehicle frame; a hydraulic-control system supported by the vehicle frame; an oil-holding tank system supported by the vehicle frame, and an oil-slick skimmer system configured to be lifted and moved by the lift system onto the oil slick.
Thu, 23 Feb 2017 08:00:00 ESTGreen liquor clarification comprising filtering of a flowing suspension containing solids, wherein the suspension is brought into contact with a first filter unit (4), said 5 filter unit (4) comprising one or several filter elements (12) comprising one or several filter bodies (3) having filter channels (33) within the filter bodies (3) with a filtering layer (32), a part of the suspension is forced to pass through the filtering layer (32) from a first/inner surface (32A) to a second/outer surface (32B) of the filtering layer (32) forming a filtrate while the solids substantially remains in a residual part of the suspension forming a slurry and where the filtering layer (32) is made of a membrane material with pores, said pores having a pore size of 0.1-10 micrometer, more preferred 0.1-5 micrometer and most preferred 0.2-1.0 micrometer.
Thu, 23 Feb 2017 08:00:00 ESTAn improved porous ceramic foam filter, and method of making the porous ceramic foam filter is provided. The porous ceramic foam filter comprising 28-78 wt % alumina; 18-78 wt % silica; and 1-15 wt % Group II oxide.
Thu, 23 Feb 2017 08:00:00 ESTIn a process for the treatment of wastewater containing carbonaceous and nitrogenous contaminants, wastewater is mixed with aerobic microorganisms capable of converting carbonaceous biological oxygen demand (CBOD) into carbon dioxide, water, and biological cell mass. Oxygen is supplied to the reaction mixture for supporting reduction of the CBOD by the aerobic microorganisms in the reaction mixture. To substantially prevent nitrification of the nitrogenous contaminants in the reaction mixture and avoid the cost of downstream denitrification, the hydraulic residence time of the nitrogenous contaminants in the reaction mixture is controlled by removing partially treated water with dissolved ammonia from the reaction mixture, while retaining the biological cell mass in the reaction mixture. This separates the nitrogen load from the carbon load and enables independent treatment of these contaminants. The ammonia is scrubbed from the partially treated water to create fully treated water which is disposed or returned to the reaction mixture.
Thu, 23 Feb 2017 08:00:00 ESTSurface or submersible sluiceable system for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with any type of media, whether standard ion exchange beads or inorganic granular media.
Thu, 23 Feb 2017 08:00:00 ESTProvided are: a lid capable of capturing a foreign substance from a liquid crystal material in advance before the liquid crystal material is used; and a method of capturing a foreign substance. In a lid (20) including a bottom part (22) closing an opening on one end of a circumferential part (21) having a tubular shape is provided and a circumferential part (21) placed over a tubular part having an opening of a container provided at the container, the bottom part (22) covering the tubular part, the lid further includes a partition board (211) provided at an inner surface of the circumferential part in a slanted direction against the bottom part (22) and dividing the inside of the circumferential part (21) into a first space proximal to the bottom part (22) and a second space apart from the bottom part (22), and a connection part (213) which connects the first space with the second space being provided at a portion of the partition board (211) closest to the bottom part (22).
Thu, 23 Feb 2017 08:00:00 ESTA strainer assembly for a marine engine has a housing with an internal cavity. The housing has a threaded inlet end, an outlet and a flush port. A removable cover assembly covers the threaded inlet end and may be removed to allow a strainer to be removed from inside the housing and cleaned. The flush port may be closed with a plug and opened to allow a threaded end of a garden hose to be attached to the flush port for cleaning the engine.
Thu, 23 Feb 2017 08:00:00 ESTA casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.
Thu, 23 Feb 2017 08:00:00 ESTAn absorption medium includes compressed coir particles having been compressed from an uncompressed state at a volume to volume ratio of greater than 3:1, but less than 15:1, and having been ground to a grind size of 1/25 inches to ½ inch.
Thu, 23 Feb 2017 08:00:00 ESTProvided herein are copolymers and copolymer compositions that are both hydrophilic and oleophobic. The copolymers include structural units derived from a fluoroalkyl monomer and a zwitterionic monomer. It further relates to membranes formed by coating a porous substrate with the copolymeric compositions. The copolymeric coating imparts hydrophilicity and oleophobicity/oil-tolerance to the membranes. The uses of such membranes as microfiltration membrane or ultrafiltration membrane are also provided.
Thu, 23 Feb 2017 08:00:00 ESTIn one aspect, the invention relates to chlorine-resistant filtration membranes comprising n-alkyl substituted polyaniline derivatives for use in, for example, water purification, and methods for making and using same. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Thu, 23 Feb 2017 08:00:00 ESTA spiral wound membrane module (2) comprising at least one membrane envelope (4) wound about a permeate collection tube (8), wherein the module (2) is characterized by a flow controller (54) located within or fixed to the permeate collection tube (8) that provides a flow resistance that varies as a function of permeate flow.
Thu, 23 Feb 2017 08:00:00 ESTIn a hollow fiber membrane module including a housing case, potting material loaded into the housing case, a cap attached to each of both ends of the housing case, and an O-ring closely held by the potting material and the cap, a whole area of the O-ring between a first contact point and a second contact point is exposed when the area is viewed from a central axis passing through a center of the ring shape of the O-ring, the first contact point being a point of contact between the O-ring and the cap, which faces inner cavity defined by an end surface of the potting material facing the cap, an inner circumferential surface of the O-ring and an inner circumferential surface of the cap, and the second contact point being a point of contact between the O-ring and the potting material, which faces the inner cavity.
Thu, 23 Feb 2017 08:00:00 ESTA coalescing element for a water separator device for fuel is provided with at least one coalescing medium that separates water contained in the fuel from the fuel. The coalescing element is arranged in a housing of the water separator device such that the coalescing element separates at least one fuel inlet of the housing from at least one fuel outlet of the housing. The at least one coalescing medium is arranged in a flow path of the fuel from the at least one fuel inlet to the at least one fuel outlet. The at least one coalescing medium contains at least one sponge-like coalescing material suitable for coalescing water. The coalescing element is used in fuel filters such as diesel fuel filters of an internal combustion engine.
Thu, 23 Feb 2017 08:00:00 ESTThe present invention relates to a water filter cartridge, with a housing and a flow path for air for ventilating a water tank storing water to be processed by the water filter cartridge. The latter is distinguished in that the flow path has a first water barrier.
Thu, 23 Feb 2017 08:00:00 ESTThe present invention relates to a water filter cartridge, with a housing and a flow path for air for ventilating a water tank storing water to be processed by the water filter cartridge. The latter is distinguished in that shut-off means are provided for the flow path for air, preferably in the form of a valve or a membrane.
Thu, 23 Feb 2017 08:00:00 ESTDisclosed herein is a device for improving the quality of rainwater/stormwater by removing pollutants therefrom. The device comprises a substantially cylindrical tank having an inlet for entry of liquid and an outlet for discharge of liquid. A coarse filter is provided in the tank for filtering gross pollutants from inflowing liquid, the coarse filter dividing the tank into an upstream first region/chamber and a downstream second region/chamber. A fine pollutant discharge opening is located between the coarse filter and the outlet. A valve comprising a valve member for opening and closing the fine pollutant discharge opening is configured to automatically open the fine pollutant discharge opening to discharge an initial volume of the liquid passing the coarse filter, the valve member being biased toward a configuration for closure of the opening during an inflow event. The liquid passing through opening bypasses the outlet.
Thu, 23 Feb 2017 08:00:00 ESTA water filter system for an appliance includes a filter head assembly, a first appliance control unit positioned proximate the filter head assembly and a water filter having a memory storage unit. The water filter is selectively placed in communication with the first appliance control unit to define a filter use state. The filter use state is further defined by a first potential fluid-flow rate through the water filter and a predetermined lifetime fluid filtration amount. A data transfer mechanism defines a second data-transfer protocol between the memory storage unit and the first appliance control unit when an actual fluid filtration amount of the water filter reaches the predetermined lifetime fluid filtration amount. The second data transfer protocol defines a notification state defined by a second potential fluid flow rate, the second potential fluid flow rate being less than the first potential fluid flow rate.
Thu, 23 Feb 2017 08:00:00 ESTA floating suction head assembly for use with a hose, for drawing liquid into the hose. The assembly includes a float assembly, a gusset member coupled to the float assembly and a strainer assembly rotatably mounted to the gusset member. The strainer assembly has a coupling portion for coupling to a hose. The strainer assembly is rotatable relative to the gusset member and the float assembly about a central longitudinal axis defined by the strainer assembly. The strainer assembly includes a strainer cage defining an interior cavity, and a strainer cartridge selectively disposable in the interior cavity and retained therein. The strainer cartridge has a generally cylindrical configuration and rotates about the central longitudinal axis of the strainer assembly. The strainer cartridge includes a corrugated exterior surface including bent portions forming alternating furrow and ridge portions substantially about the circumference of the strainer cartridge.
Thu, 23 Feb 2017 08:00:00 ESTA system for filtering particles from a fluid includes a strainer. The strainer includes a housing having an inlet, a first outlet, a second outlet. A filter element is positioned in an internal volume of the housing. The filter element defines a bore formed axially-therethrough and openings that are substantially transverse to the bore. A first portion of the fluid that enters the housing through the inlet flows through the openings in the filter element and exits the housing through the first outlet, and a second portion of the fluid that the housing through the inlet bypasses the openings and exits the housing through the second outlet.
Thu, 23 Feb 2017 08:00:00 ESTIn one example, a filter cartridge includes a housing having a fluid entry port and a fluid exit port, and the housing has a chamber in fluid communication with the fluid entry port and the fluid exit port. A first medium is disposed within the chamber and includes a material that serves to change the pH of a fluid passing through the first medium. A filtration medium is disposed in the chamber downstream of the first medium and arranged to receive effluent of the first medium. The filtration medium includes a material configured to remove a metal from a fluid passing through the filtration medium.
Thu, 23 Feb 2017 08:00:00 ESTThe invention relates to a grid bar for a screen grid (2) of a screen (3) comprising a multiple number of grid bars (1) arranged next to each other and spaced apart from each other, which serves the purpose of separating screening material from a flowing liquid, such as wastewater (5) flowing in a sewer channel (4). In accordance with the invention, it is proposed that the grid bar (1) consists, at least partially, of a plastic reinforced with fibers (6), whereas at least a part of the fibers (6) extend in a longitudinal direction of the grid bar (1). In addition, a screen (3) with a corresponding screen grid (2) is proposed.
Thu, 23 Feb 2017 08:00:00 ESTA method of manufacturing a tube sheet by forming a plurality of separate thin tube sheet segments; forming multiple holes in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube; aligning all of the plurality of tube sheet segments so that the hole pattern of each sheet aligns with the hole pattern in all other sheets of the plurality of tube sheet segments; and securing all of the tube sheet segments together to form a unitary tube sheet. A tube sheet construction that includes a plurality of separate thin tube sheet segments, multiple holes being provided in each sheet in a predetermined pattern, each hole for accommodating a tube sheet filter tube, all of the tube sheet segments being aligning so that the hole pattern of each sheet aligns, and fasteners for securing all of the tube sheet segments together. A media layer is provided between adjacent sheet segments.
Thu, 23 Feb 2017 08:00:00 ESTA lamella settler (1) comprises a basin (10) with an inlet for liquid to be cleaned and a sludge outlet and with a plurality of outlet openings (12) for cleaned liquid. Each of a plurality of outlet flumes (16)connects to one of the plurality of outlet openings (12). A plurality of lamella plates are (18) attached to adjacent flumes (16). By providing a plurality of transverse beams (14) above the basin (10), wherein the outlet flumes (16) are supported by the beams (14), an improved lamella settler is achieved which is easier to manufacture and assemble and which has improved characteristics.
Thu, 23 Feb 2017 08:00:00 ESTA polar liquid mixture containing suspended or dissolved particles or solute is exposed to air or a hydrophilic surface. An exclusion zone having a reduced concentration of particles or solute is formed in the polar liquid adjacent to the interface with air or the hydrophilic surface. One or more fractions of purified polar liquid and/or concentrated particles or solute are collected. A sensor can provide feedback to the collector.
Thu, 23 Feb 2017 08:00:00 ESTAcoustophoretic devices are disclosed. The devices include a flow chamber, an ultrasonic transducer, a reflector, an inlet, a filtrate outlet, a concentrate outlet, and optionally a lipid collection trap. The ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave in the flow chamber that traps and separates red blood cells and/or lipids from blood. Concentrated red blood cells can be recovered via the concentrate outlet, the lipids can be recovered via the lipid collection trap, and the remaining blood can be recovered via the filtrate outlet. Methods for separating blood components (e.g., red blood cells, lipids, platelets, white blood cells) from blood are also disclosed. The red blood cells can undergo washing with a solvent to remove undesired admixtures. Cryoprotectants can be added or removed from the blood.
Thu, 23 Feb 2017 08:00:00 ESTA method of treating blood withdrawn from patient including: simultaneously withdrawing blood and infusing withdrawn blood from and to the patient by flowing the withdrawn blood through an extracorporeal dialysis circuit including a dialyzer having a semi-permeable dialysis membrane and a dialysate side adjacent the membrane; feeding a dialysate containing 1 to 5 mM total calcium and 2 to 8 mM citrate to the dialysate side of the dialyzer, and introducing an anticoagulation fluid including at least 8 mM citrate into the
Thu, 23 Feb 2017 08:00:00 ESTA bowl comprising an open top (2), an outer surface (3) and a base (4), in which a plurality of first drainage apertures (5) are provided in said outer surface, in which said base is provided with a resilient bi-stable diaphragm member (6) which is manually switchable between a first dome configuration in which it extends away from said outer surface, and a second dome configuration in which it is everted in relation to said first configuration and overlies said outer surface to close said plurality of first drainage apertures.
Thu, 23 Feb 2017 08:00:00 ESTA proportion-integration-derivation (PID) kettle structure includes: a kettle upper cover; a water filling cap, embedded into kettle upper cover; and a PID element, fixed onto inner side of water filling cap, to indicate usage time of a filter core in a kettle. The PID element includes: a guiding axis, disposed at an end inside the water filling cap; a pushing rack, sleeved around the guiding axis; a reset spring, disposed between pushing rack and guiding axis; an arc-shape rack pushing boss, disposed symmetrically on both sides of the pushing rack, used to push the pushing rack to move, when water filling cap is opened or closed; a driving gear, disposed at front end of the pushing rack, to act in cooperation with the pushing rack; and a driven gear, disposed below the driving gear, and connected to rotate along with the driving gear.
Thu, 16 Feb 2017 08:00:00 ESTAspects of the present disclosure are directed toward methods, apparatuses and systems for operating at a fluid-maintenance site. In certain embodiments, the methods, apparatuses, and systems include a fluid filter, a sensor that provides parameters that characterize fluid flowing through the fluid filter, and a wireless interface circuit. The wireless interface circuit operates in a set-up mode and a normal-operation mode. In the set-up mode, the wireless interface circuit operates by communicating authentication data with a mobile data-processing device while the mobile data-processing device is proximate to the fluid-maintenance site. In the normal-operation mode, the wireless interface circuit operates by sending the parameters wirelessly, according to the authentication protocol, to a remotely-situated server via a wireless communication medium and a broadband connection.
Thu, 16 Feb 2017 08:00:00 ESTAn ion exchange system includes one or more strategies to reduce the amount of hydrogen gas inside an ion exchange column when the column is offline or disposed of. The ion exchange system comprises an ion exchange column including a housing and ion exchange media positioned in the housing. The ion exchange column can include one or more of the following: (1) an oxide material that limits the production of hydrogen gas from radiolysis, (2) a hydrogen scavenging material that removes or scavenges hydrogen gas inside the column, and (3) a hydrogen catalytic material that catalyzes the reaction of hydrogen and oxygen inside the column.
Thu, 16 Feb 2017 08:00:00 ESTAn ion exchange system includes an ion exchange column filled with ion exchange media and a passive cooling system. The passive cooling system includes a working fluid that transfers heat away from the ion exchange column. In one embodiment, the working fluid is in a closed system. In another embodiment, the passive cooling system includes a heat pipe. In yet another embodiment, the ion exchange system is used to separate radionuclides, such as Cs-137 from a liquid waste stream.
Thu, 16 Feb 2017 08:00:00 ESTA system, module and method for continuous or batch single-pass countercurrent tangential chromatography are disclosed for bind/elute and negative chromatography applications. The system includes binding, washing, elution (for bind/elute), regeneration, and equilibration single-pass modules. The resin slurry flows in a continuous single pass at steady-state through each module, while corresponding buffers flow countercurrent to the slurry facilitating efficient product and impurity extraction. The module and system include retentate pumps for better process robustness and control. A resin tank configured to be reversibly isolated from the single-pass modules facilitates a closed and disposable system. The method includes receiving unpurified product solution and resin slurry, isolating the resin tank, binding product (bind/elute) or impurities (negative) to the resin slurry, washing impurities from the resin slurry, eluting and capturing pure product from the resin slurry (bind/elute), regenerating the resin slurry following elution, and providing buffer solutions to all of the single-pass steps.
Thu, 16 Feb 2017 08:00:00 ESTThe present disclosure provides a skimmer basket assembly. The skimmer basket assembly may include a basket, the bottom of which may include one or more flaps. A handle may be connected to the basket via one or more connectors. The handle may include a trigger mechanism that is mechanically linked to the one or more flaps of the basket. The trigger mechanism may be configured to operate the one of more flaps of the basket upon manipulation of the trigger mechanism. The skimmer basket assembly may include a lid that is slidingly connected to the one or more connectors. The lid may be configured to receive the handle therein and substantially cover a top opening of the basket.
Thu, 16 Feb 2017 08:00:00 ESTA membrane photobioreactor for treating nitrogen and phosphorus that are out of limits in a biogas slurry and treating method thereof, relating to biogas slurry treatment. The membrane photobioreactor for treating nitrogen and phosphorus that are out of limits in a biogas slurry is provided with a biogas slurry storage tank, peristaltic pumps, a microalgae cultivating tank, an air pump, a membrane photobioreactor and a hollow fiber membrane. The biogas slurry containing nitrogen and phosphorus that are out of limits is stored in the biogas slurry storage tank, and is driven by a first peristaltic pump to circularly flow in a silicone pipe; a microalgae solution is cultivated under illumination in the microalgae cultivating tank, and is driven by a second peristaltic pump to circularly flow in a silicone pipe, air is fed into the microalgae cultivating tank through the air pump, the biogas slurry and the microalgae solution are converged in the membrane photobioreactor, and the biogas slurry circularly flows inside the hollow fiber membrane pipe and the microalgae solution circularly flows outside the hollow fiber membrane pipe, the two being in a cross flow; and the nitrogen and phosphorus that are out of limits in the biogas slurry penetrate from the inside of the hollow fiber membrane and are absorbed by the microalgae solution outside the membrane, and after cyclical cultivation, nitrogen and phosphorus that are out of limits in the biogas slurry are absorbed, and the discharge standards are achieved.
Thu, 16 Feb 2017 08:00:00 ESTComplexes including a solid support and a material with a matrix structure containing domains complexing rare earth or strategic metals, preparation process thereof and use thereof for extracting or separating the rare earth or strategic metals in an aqueous or organic medium.
Thu, 16 Feb 2017 08:00:00 ESTA water reclamation method on the basis of integrated use of magnetic resin adsorption and electrosorption is provided. It belongs to the water reclamation field, including the following steps: pump the biotreated effluent into a reactor that is filled with magnetic resin particles so that the chromaticity, organic pollutants, total nitrogen, total phosphorus contained in the wastewater can be effectively reduced; channel the fully reacted mixture into a precipitation tank for separation; part of the separated magnetic resin is pumped back into the reactor while the rest of the separated magnetic resin flows into a regeneration tank; the wastewater treated by magnetic resin adsorption then flows into an electrosorption unit for a desalting process; the remaining organic pollutants and inorganic pollutants are further removed.
Thu, 16 Feb 2017 08:00:00 ESTProvided is an electrical household appliance (1) have a water tank (2) and a water supply system (4) communicating with the tank, at least one scale-inhibiting agent and means (3) for boiling and/or evaporating the water coming from the reservoir or contained in the reservoir. The scale-inhibiting agent is a biodegradable agent that is at least partially water-soluble. Also provided is a method for inhibiting the formation and deposition of scale in electrical household appliances in contact with an aqueous medium, the method employing said biodegradable scale-inhibiting agent.
Thu, 16 Feb 2017 08:00:00 ESTA water treatment unit has a support housing vertically extending between a support housing upper end and a support housing lower end. The support housing includes a pair of opposing primary housing walls and a pair of opposing secondary housing walls. Each of the secondary housing walls is formed separately from, and mechanically joined to, each of the primary housing walls. Each of the primary housing walls is perforated to allow airflow in a first direction laterally through a treatment cavity defined by the housing walls. A plurality of hangers extend in the first direction between the primary housing walls and are supported by the support housing. The hangers are mutually spaced between the secondary housing walls across the treatment cavity (23). A plurality of biotreatment membranes each carry a biomass culture and are draped over, and supported by, one of the hangers to define two opposing membrane walls each extending downwardly from the hanger.
Thu, 16 Feb 2017 08:00:00 ESTThe present invention discloses a device for Fenton fluidized-bed process and a method applying the device for wastewater treatment. It belongs to the wastewater treatment field. The device comprises an adjusting tank, a lift pump and a main reaction column. The adjusting tank is connected to a water distributing trough on the top of the main reaction column through the lift pump; the main reaction column is filled with the packing material, and below the packing material is equipped with an obcone, whereon a plurality of inlets are provided and a slag discharge pipe is connected to the bottom; above the packing material is installed an inclined plate, above which and at the upper end of the main reaction column are arranged with a partitioned trough and an outflow trough; the partitioned trough is evenly divided by a vertical plate into two independent chambers; the upper end of each chamber is connected to the water distributing trough while the lower end of each chamber is designed with an outlet; the outlets of the two independent chambers are connected to the inlets on the obcone through the first circulation pump and the second circulation pump respectively; the outflow trough is installed opposite the partitioned trough. When being used to treat biotreated wastewater, the device disclosed in the present invention can enhance use efficiency of the reagent, and maintain high effect and stability in eliminating iron in the wastewater.
Thu, 16 Feb 2017 08:00:00 ESTA process for treating oilfield wastewater comprises oxidizing an oilfield wastewater having greater than about 1 ppm of a reducing agent comprising ferrous ions, a sulfide, a bisulfide, an organic compound, or a combination comprising at least one of the foregoing with an oxidant comprising hydrogen peroxide, potassium permanganate, chlorine, sodium hypochlorite, calcium hypochlorite, sodium percarbonate, sodium perborate, ozone, UV, oxygen, or a combination comprising at least one of the foregoing to provide an oxidized wastewater; and combining the oxidized wastewater with a biocide comprising chlorine dioxide.
Thu, 16 Feb 2017 08:00:00 ESTThe invention relates to a method for the dewatering of sludge on a screen, wherein a flocculant is admixed with sludge, whereafter the sludge is at least partially dewatered, the flow behaviour of the sludge on the screen being optically detected and the amount of flocculant to be admixed being set according to the free screen surface in a control region. The invention is primarily characterized in that the control region is arranged at a point of the cleaned screen in the inlet area of the sludge, for example at the edge. The invention also relates to a device for the dewatering of sludge, comprising a flocculant feed device and a screen downstream of the flocculant feed device, wherein a device, in particular a camera, is provided for optically detecting the flow behaviour of the sludge and is connected via a control system to the flocculant feed device for regulating the amount of flocculant, said device being characterized in that the device (11), in particular the camera, is designed such that it detects a control region in the inlet area (10) of the cleaned screen. In this way, regulation can be achieved for an optimal feed amount of flocculant in a straightforward manner regardless of the material feed and the sludge type.
Thu, 16 Feb 2017 08:00:00 ESTThe present invention relates to a novel forward osmosis (FO) process for dewatering of a variety of feed solution using low water activity and high osmotic pressure deep eutectic solvent with and without dispersed magnetic nanoparticles as draw solution. In particular, choline chloride-ethylene glycol, choline chloride-glycerol, Fe3O4 dispersed in former and latter were utilized as draw solution in FO for one step desalination of brackish and seawater, water recovery from effluent of leather and dye industries, protein and DNA concentration at room temperature. Owing to very low freezing point, the diluted draw solution after FO was recovered through phase separation by chilling at Ca. −10 ° C. with concomitant production of usable water. Although the present invention focused on specific DES and dispersion of Fe3O4 as magnetic nanoparticles but use of other DES having high osmotic pressure and low freezing point and other magnetic nanoparticles dispersion are logical extension of present invention.
Thu, 16 Feb 2017 08:00:00 ESTThis filtration treatment system is provided with a membrane filtration device as a prefiltration treatment device for removing insoluble components from the water to be treated containing organic substance, a reverse osmosis membrane treatment device for subjecting the prefiltration-treated water to reverse osmosis membrane treatment, and a chemical agent supply pipe for supplying a chemical agent into the membrane filtration device, wherein the chemical agent contains a sulfamic acid compound, and a bromine-based oxidizing agent or the reaction product of a bromine compound with a chlorine-based oxidizing agent, or, contains the reaction product of a sulfamic acid compound with a bromine-based oxidizing agent or with the reaction product of a bromine compound with a chlorine-based oxidizing agent.
Thu, 16 Feb 2017 08:00:00 ESTA floatable, portable and readily deployable apparatus used in a surface water body for the collection, mixing, separation, containment and removal of total solids from fluid in surface water by settling, sorption, floatation or filtration of total solids from fluid entering or pumped into the apparatus. Separation of total solids from fluid can include the use and recycling of commercially available or proprietary biologic, chemical and/or physical substances and processes to increase the rate and percentage of total solids removed from fluid in the apparatus.
Thu, 16 Feb 2017 08:00:00 ESTA method for removing benzene from water, by mixing aluminum oxide nanoparticle-impregnated multi-walled carbon nanotubes with a solution containing water and benzene to obtain a suspension containing the aluminum oxide nanoparticle-impregnated multi-walled carbon nanotubes, the water and the benzene, and then applying ultraviolet light to the suspension and stirring the suspension to remove at least a portion of the benzene from water.