Abstract: [Object] To provide an anti-soiling agent compound that can sufficiently prevents adhesion of pitch to a dry part region. [Solution] The present invention provides an anti-soiling agent composition for preventing pitch contamination in a dry part of a paper-making process, and the composition has a polysiloxane compound represented by the following formula (1), wherein the number of amino-modified groups per molecule of the polysiloxane compound is in a range from 0.5 to 5. [wherein, a substituent R1 represents a methyl group or an amino-modified group represented by the following formula (2), and the number n of repeating siloxane units represents an integer in a range from 50 to 1000, and wherein, each of a substituent R2 and a substituent R3 independently represents an alkylene group having carbon atoms of 1 to 6, and the number m of repeating amino-alkylene units represents an integer in a range from 0 to 2].

Abstract: The present disclosure is generally directed to a dispersible moist wipe comprising hydroentangled fibers and a binder composition. The moist wipe demonstrates high initial wet strength while maintaining effective dispersion in an aqueous environment. The moist wipe has potential application as a flushable surface cleaning product and/or a flushable cleansing cloth.

Abstract: A method is provided for forming a fire resistant cellulose product. A fire-retarding solution and a bonding agent are combined with refined cellulose fibers to form a fiber mixture, and the fire-retarding solution and bonding agent are substantially uniformly distributed with respect to the cellulose fibers within the fiber mixture. The fiber mixture is exposed to an actuating element, wherein the actuating element is configured to actuate the bonding agent so as to facilitate cohesion of the cellulose fibers and form the fiber mixture into a fiber board member, the fiber board member having opposing major surfaces. A cellulose sheet member is engaged with each major surface of the fiber board member, such that each cellulose sheet member substantially covers the respective major surface. An associated apparatus is also provided.

Abstract: The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibers and then dewatering the obtained suspension.

Abstract: Latent dispersants were made by the hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer. Adding the latent dispersant to paper or paperboard increased its resistance to water and water vapor while maintaining recyclability and repulpability. Additionally, provided is a method for increasing the repulpability of a wax coated paper or paperboard. Dispersants made by the hydrolysis of the alkyl ketene dimer, alkenyl ketene dimer, and ketene multimer are also described.

Abstract: A press felt includes: a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of exterior machine direction (MD) yarns, each of which includes an upper run and a lower run merging with seam loops at each end, a plurality of middle MD yarns positioned between the upper and lower runs of the exterior MD yarns, a plurality of cross machine direction (CMD) yarns interwoven with the exterior MD yarns and the middle MD yarns in a predetermined regular weave pattern, the seam loops defining the longitudinal ends of the press felt; and a batt layer overlying the base fabric.

Abstract: Embodiments presented herein describe an apparatus and method to control the conversion of carbonaceous materials, particularly biomass and those biomass resources, into a high performance solid fuel. This method, and the apparatus described as the means to accomplish this method, provides a process having a control system that enables the system to produce a fuel of uniform quality, even with a change in biomass supply.

Abstract: A system for tire distillation including an upper chamber, a first conveyor configured to transport a tire through the upper chamber, a lower chamber located beneath the upper chamber, the lower chamber that includes an ultrasonic purge chamber configured to radiate the tire with ultrasonic radiation, a microwave radiation chamber configured to radiate the tire with microwave radiation, and a second conveyor configured to transport the tire from the ultrasonic purge chamber to the microwave radiation chamber. The system further includes a vacuum system configured to maintain an atmosphere in the ultrasonic purge chamber and the microwave radiation chamber under a vacuum wherein the tire is preheated during conveyance through the upper chamber from heat produced in the lower chamber.

Abstract: The present technology describes apparatus, systems, and methods for the thermal decomposition of carbonaceous feedstocks through continuous pyrolysis. A reciprocating reactor is described that includes an inner reactor pipe and an outer reactor pipe. The outer reactor pipe has a first portion that surrounds the inner reactor pipe forming an annulus space, and a second portion that extends beyond the inner reactor pipe and forms a turnaround zone. The inner reactor pipe defines an inner reactor zone that produces partially reacted carbonaceous feedstock, and the annulus space defines an outer reactor zone that produces product gases and solids.

Abstract: A rotary evaporator comprising a motor, a rotary joint movably inserted to a motor rotor of the motor by a sleeve in an axial direction, a collection flask attached to the rotary joint at one end of the joint, with a condenser attached to the other end of the joint. The condenser is adapted to receive a cooling coil from an immersion cooler. The cooling coil is attached to the base unit of the immersion cooler via an insulated hose. The rotary evaporator is adapted to provide various ways to remove heat from the flask in the water bath, whether by mechanically lowering the water bath, dropping fluid from the bath into an underlying reservoir, or raising and lowering the rotary evaporator out of the bath. Where the rotary evaporator is raised and lowered, the immersion cooler can remain in place if the hose connecting the base unit to the cooling coil is sufficiently long, or the condenser includes a flexible portion that accommodates the upward and downward movement.

Abstract: An accelerated vapor recompression apparatus 10 converts incoming flow 35a to a concentrate 35c by developing a concentration profile 146 within a tank 30 holding a liquid 23 containing dissolved solids. The resulting curve 160 of saturation temperature of the stratified liquid 23 (such as a brine 23 or other material 23) moves away from the curve 162 corresponding to fully mixed conditions. The shift 174, 180 in saturation temperature results in increased boiling without increased energy from a heater 70 or compressor 50. A method 90, 200 of control of the system provides interventions 203, 204, 205, 206 at different levels 92, 94, 96, 98 of control, ranging from mass flows 35 to work of a compressor 50, heat from a heater 70, and a predictive processing 215 of feedback 217 for controlling commands 216 algorithmically.

Abstract: Recovering high purity benzene from hydrocarbon feedstock containing aromatics and non-aromatics is implemented by simple and low-cost modifications to conventional extractive distillation columns (EDCs). Methyl cyclohexane (MCH) that is generated through non-selective hydrogenation of toluene in hydrodesulfurization (HDS) units is a major contaminant in benzene production. To meet MCH specifications, often times the extractive distillation (ED) process for recovering purified benzene is operated with excessive benzene loss to the overhead raffinate stream, producing a lower quality non-aromatic product.

Abstract: A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-shaped structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film and thereby growing a plurality of nano coral-shaped structures on the petal-shaped structure. Therefore, the composite field emission source with high strength and nano coral-shaped structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: The leaching and precipitation of noble metals when circulating an electrolyte through a vertical cylindrical electrolytic cell comprising a fixed granular catalyst bed and a three-dimensional cathode filled with activated carbon granules are performed in the same step. Because the electrochemical leaching process and the electrochemical sorption process are performed simultaneously, the consumption of electric energy is reduced and the use of equipment becomes easy. An apparatus for extracting noble metals from inorganic granular waste catalysts comprises a vertical type electrolytic cell, conduit lines, an electrolyte circulating pump, a unit for automatically maintaining the required acidity of the electrolyte being circulated, a filter for filtering activated carbon particles from the electrolyte, control valves, and stop valves.

Abstract: An electrochemical deposition apparatus adapted to deposit metal onto a surface of a substrate, the apparatus has a frame configured for holding a process electrolyte. A substrate holder is removably coupled to the frame, the substrate holder supporting the substrate in the process electrolyte. An anode fluid compartment is removably coupled to the frame and containing an anolyte and having an anode facing the surface of the substrate, the anode fluid compartment further having a ion exchange membrane disposed between the anode and the surface of the substrate, the anode fluid compartment removable from the frame as a unit with the ion exchange membrane and the anode. The holder, the anode and the membrane are arranged in the frame so that ions from the anode pass through the ion exchange membrane into and primarily replenish ions in the process electrolyte depleted by ion deposition onto the surface of the substrate.

Abstract: A continuous electrolyzed oxidizing/reduction water generator device includes an electrically insulative housing which is an acid, alkali and pressure resistant box with a water inlet and multiple water outlets on opposing sides, positive and negative electrodes are mounted in the electrically insulative housing in parallel and equally spaced by a cation exchange membrane, and an electric control box to provide high voltage DC across the positive and negative electrodes to oxidize intake water into electrolyzed oxidizing/reduction water. Multiple generator units may be connected in series.

Abstract: An electrochemical compressor includes one or more electrochemical cells through which a working fluid flows, and an external electrical energy source electrically connected to the electrochemical cell. Each electrochemical cell includes an anode connected to the electrical energy source; a cathode connected to the electrical energy source; an ion exchange membrane disposed between and in electrical contact with the cathode and the anode to pass an electrochemically motive material of the working fluid from the anode to the cathode, the ion exchange membrane comprising polar ionic groups attached to nonpolar chains; and a non-aqueous solvent comprising polar molecules, the polar molecules of the non-aqueous solvent being associated with and electrostatically attracted to the polar ionic groups of the ion exchange membrane.

Abstract: An exemplary electrolyzer includes an electrode plate assembly including a plurality of perforated electrode plates and electrically conductive busbars. The plurality of electrode plates includes one or more positive electrode plates interleaved with one or more negative electrode plates. Each electrode plate has a first aperture and a second aperture, the second aperture being larger than the first aperture and lined with a non-conductive grommet. The plurality of electrically conductive busbars includes a first positive conductive busbar and a first negative conductive busbar. Respective conductive busbars extend through the first aperture of corresponding positive and negative electrodes and through the non-conductive grommet of the second aperture of each corresponding negative and positive electrode.

Abstract: A film formation apparatus includes: a chamber having an inner space in which both a body to be processed and a target are disposed so that the body to be processed and the target are opposed to each other, a first magnetic field generation section generating a magnetic field in the inner space to which the target is exposed; a second magnetic field generation section generating a perpendicular magnetic field so as to allow perpendicular magnetic lines of force thereof to pass between the target the body to be processed; and a third magnetic field generation section disposed at upstream side of the target as seen from the second magnetic field generation section.

Abstract: The disclosure relates to a magnet arrangement for a sputtering system, wherein the magnet arrangement is adapted for a rotatable target of a sputtering system and includes: a first magnet element extending along a first axis; a second magnet element being disposed around the first magnet element symmetrically to a first plane; wherein the second magnet element includes at least one magnet section intersecting the first plane; and wherein a magnetic axis of the at least one magnet section is inclined with respect to a second plane being orthogonal to the first axis. Further, the disclosure relates to a target backing tube for a rotatable target of a sputtering system, a cylindrical rotatable target for a sputtering system, and a sputtering system.

Abstract: The present disclosure relates to an electrode strip, a sensor strip, a system thereof and a manufacturing method thereof. The sensor strip includes a first reactive film, a second reactive film and a vent hole. The first reactive film includes a substrate, a first electrode layer and a first insulation layer. The first end of the first insulation layer is concaved to a first depth to form a first reactive area. The second reactive film includes a second electrode layer and a second insulation layer. The first end of the second insulation layer is concaved to a second depth to form a second reactive area. The vent hole penetrates the second insulation layer, the second electrode layer and the first insulation layer so as to connect the first reactive area and the second reactive area.

Abstract: Improvements in references electrodes, halogen sensors, pH sensors, TDS sensors, combinations thereof, and related methods.

Abstract: Embodiments of the present invention provide devices, systems, and methods for microscale isoelectric fractionation. Analytes in a sample may be isolated according to their isoelectric point within a fractionation microchannel. A microfluidic device according to an embodiment of the invention includes a substrate at least partially defining a fractionation microchannel. The fractionation microchannel has at least one cross-sectional dimension equal to or less than 1 mm. A plurality of membranes of different pHs are disposed in the microchannel. Analytes having an isoelectric point between the pH of the membranes may be collected in a region of the fractionation channel between the first and second membranes through isoelectric fractionation.

Abstract: Proteins that are electrophoretically separated in a gel are derivatized to produce fluorescent emissions by incorporating halo-substituted organic compounds into one or both of the electrode buffer solutions at the two ends of the gel. The halo-substituted compounds used are ones that bear an electric charge at the pH of the buffer solutions and gel, and the polarity of the charge on the compounds is such that the compounds migrate from the electrode buffer into the gel under the electrophoretic influence concurrently with the migration of the proteins into the gel. Once the proteins are separated and distributed within the gel and the gel is fully penetrated with the halo-substituted compounds, the gel is irradiated with ultraviolet light to induce a reaction between the halo-substituted compounds and the proteins through the tryptophan residues on the proteins, producing fluorescent reaction products.

Abstract: The invention relates to, among other things, a method for performing electrophoresis with in-situ calibration. The method includes combining a volume of a test sample with a volume or quantity of a calibrating sample to form a final volume, where the volume of the calibrating sample includes a known concentration of a calibrator and the final volume includes a known ratio of test sample to calibrating sample. The method also includes depositing a loading fraction in a receiving well of an electrophoretic gel, in which the loading fraction is a fraction of the final volume, and separating the loading fraction along a common separation lane of the electrophoretic gel such that components of the test sample and the calibrator are separated from one another along the common separation lane.

Abstract: Variable property deposit, at least partially of fine-grained metallic material, optionally containing solid particulates dispersed therein, is disclosed. The electrodeposition conditions in a single plating cell are suitably adjusted to once or repeatedly vary at least one property in the deposit direction. In one embodiment denoted multidimension grading, property variation along the length and/or width of the deposit is also provided. Variable property metallic material deposits containing at least in part a fine-grained microstructure and variable property in the deposit direction and optionally multidimensionally, provide superior overall mechanical properties compared to monolithic fine-grained (average grain size: 2 nm-5 micron), entirely coarse-grained (average grain size: >20 micron) or entirely amorphous metallic material deposits.

Abstract: The invention relates to a method for the photoelectrochemical production of hydrogen and oxygen and for the simultaneously or separately conducted photoelectrical/photovoltaic production of electricity, characterized in that water is brought into contact with silicides, while applying light at the same time, or the contact with water can be foregone if electricity is produced exclusively. The invention enables the production of hydrogen and oxygen in a simple way directly from water, wherein the use of UV light and cost-intensive catalysts can be foregone.

Abstract: Methods and apparatus for the preparation of nitrogen fertilizers including ammonium nitrate, urea, urea-ammonium nitrate, and/or ammonia are disclosed. Embodiments include (1) ammonium nitrate produced via the reduction of a nitrogen source at the cathode and the oxidation of a nitrogen source at the anode; (2) urea or its isomers produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source: (3) ammonia produced via the reduction of nitrogen source at the cathode and the oxidation of a hydrogen source or a hydrogen equivalent such as carbon monoxide or a mixture of carbon monoxide and hydrogen at the anode; and (4) urea-ammonium nitrate produced via the simultaneous cathodic reduction of a carbon source and a nitrogen source, and anodic oxidation of a nitrogen source.

Abstract: Communications systems are provided for use with an impressed current cathodic protection (ICCP) system having single or multiple ICCP components. A pipeline may be provided by connecting multiple pipeline sections together as an integrated pipeline where each section has an associated ICCP system. A communications signal comprising an AC signal is impressed on the pipeline and received by receivers associated with power supplies associated with each ICCP system. Upon reception of the AC signal, a controllable switch is operated within the power supplies to synchronously disconnect them from their power source and thereby enable accurate testing of the ICCP system.

Abstract: A method is provided for determining analyte concentrations, for example glucose concentrations, that utilizes a dynamic determination of the appropriate time for making a glucose measurement, for example when a current versus time curve substantially conforms to a Cottrell decay, or when the current is established in a plateau region. Dynamic determination of the time to take the measurement allows each strip to operate in the shortest appropriate time frame, thereby avoiding using an average measurement time that may be longer than necessary for some strips and too short for others.

Abstract: Methods, systems, and compounds for detecting modified nucleic acid bases are disclosed and described. The methods provide for detecting a nucleic acid lesion and can include directing a nucleic acid adduct into a channel, wherein the nucleic acid adduct includes a nucleic acid having a lesion and a current modulating compound coupled to the nucleic acid at the lesion (110), and measuring a change in current through the channel in response to the current modulating compound to detect the lesion (112). The method can optionally include forming the nucleic acid adduct. Also provided is a method for identifying the number of repeat nucleotides in at least a portion of a nucleic acid strand, a method of assigning a registration marker within a nucleic acid, and a method of obtaining sequence information from a nucleic acid comprising assigning a registration marker on the nucleic acid.

Abstract: Described are methods and systems to apply a plurality of test voltages to the test strip and measure at least a current transient output resulting from an electrochemical reaction in a test chamber of the test strip so that a glucose concentration can be determined that are generally insensitive to other substances in the body fluid sample that could affect the precision and accuracy of the glucose concentration.

Abstract: Methods and apparatuses relating to large scale FET arrays for analyte detection and measurement are provided. ChemFET (e.g., ISFET) arrays may be fabricated using conventional CMOS processing techniques based on improved FET pixel and array designs that increase measurement sensitivity and accuracy, and at the same time facilitate significantly small pixel sizes and dense arrays. Improved array control techniques provide for rapid data acquisition from large and dense arrays. Such arrays may be employed to detect a presence and/or concentration changes of various analyte types in a wide variety of chemical and/or biological processes.

Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.

Abstract: The present invention relates to hydrocarbons and particularly to the manufacture of hydrocarbon components suitable as aviation fuels or jet fuels and as blending stocks for aviation fuels. The process comprises the stages, wherein in the first stage an oil feed of biological origin and hydrogen gas are subjected to conditions sufficient to effect hydrodeoxygenation in the presence of a hydrodeoxygenation catalyst to yield n-paraffins; in the second stage the n-paraffins and hydrogen gas are subjected to conditions sufficient to effect isomerization in the presence of an isomerization catalyst to yield isoparaffins and separating fractions; and recycling the fraction boiling at a temperature above 200° C. under atmospheric pressure obtained from the second stage to reisomerization, where isomerization is effected in the presence of an isomerization catalyst.

Abstract: The invention relates to the integration of a process for hydrotreatment of distillates (light and/or middle), that operates under a hydrogen partial pressure of 0.5 to 6.0 MPa, with a process for hydrotreatment/hydroconversion of middle and/or heavy distillates that operates at a hydrogen partial pressure that is at least 4.0 MPa higher than the hydrogen partial pressure of the process for hydrotreatment of distillates (light and/or middle). The integration resides in the use of the hydrogen-rich gas, obtained from the hydrotreatment/hydroconversion effluents, in the process for hydrotreatment of distillates (light and/or middle) and in the adjustment of the pressure level of this hydrogen-rich gas removed from the hydrotreatment/hydroconversion. This invention makes it possible to considerably reduce the net consumption of make-up hydrogen in the process for hydrotreatment of distillates (light and/or middle).

Abstract: A process and apparatus described is for distributing hydrocarbon feed to catalyst in a riser. Hydrocarbon feed is delivered to a plenum in the riser. Nozzles from the plenum inject feed into the riser to contact the catalyst. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around an insert in a lower section of a riser. The plenum may be located in the riser.

Abstract: A process for upgrading an oil stream by mixing the oil stream with a water stream and subjecting it to conditions that are at or above the supercritical temperature and pressure of water. The process further includes cooling and a subsequent alkaline extraction step. The resulting thiols and hydrogen sulfide gas can be isolated from the product stream, resulting in an upgraded oil stream that is a higher value oil having low sulfur, low nitrogen, and low metallic impurities as compared to the oil stream.

Abstract: An oxidative treatment process, e.g., oxidative desulfurization or denitrification, is provided in which the oxidant is produced in-situ using an aromatic-rich portion of the original liquid hydrocarbon feedstock. The process reduces or replaces the need for the separate introduction of liquid oxidants such as hydrogen peroxide, organic peroxide and organic hydroperoxide in an oxidative treatment process.

Abstract: A water filter including a housing, at least one cylindrical filter component disposed within the housing, an inflow pipe extending through, and parallel to a longitudinal axis of, the at least one cylindrical filter component, the inflow pipe including a series of openings arranged along the length of the inflow pipe so as to cause a cyclonic motion of the contaminated water out of the inflow pipe and into contact with the at least one cylindrical filter component, a first outflow pipe that delivers filtered water from the at least one cylindrical filter component, and a second outflow pipe that delivers contaminants from the at least one cylindrical filter component.

Abstract: A structure for an opening section closed by a net through which fluid flows. The opening section is provided in a vertical wall so as to rise to the vertical wall side from the corner formed between the vertical wall and a horizontal wall. A downward protruding rib is provided on the lower side of the opening section. The lower edge of the net is provided so as to be affixed to at least the rib.

Abstract: In an embodiment, a porous composite particulate material includes a plurality of composite particles. Each composite particle includes an acid-base-resistant core particle at least partially surrounded by one or more layers of acid-base-resistant shell particles. The shell particles are adhered to the core particle by a polymeric layer. The shell particles and/or core particles may be made from an acid-base-resistant material that is stable in harsh chemical conditions. For example, the shell particles and/or core particles may be made from diamond, graphitic carbon, silicon carbide, boron nitride, tungsten carbide, combinations of the foregoing, or other acid-base-resistant materials. The porous composite particulate materials disclosed herein and related methods and devices may be used in separation technologies, including, but not limited to, chromatography, and solid phase extraction.

Abstract: The invention is directed to point of use devices and appliances for alkalizing water that is to be ingested. The devices comprise straws, carafes, countertop units, water bottle units, and any other devices that will treat the water at the point of use. The water will flow through the point of use devices or appliances longitudinally or radially. The point of use device or appliance will contain an alkalizing formulation that will increase the pH of the water to preferably above about 8. The amount of water that can be treated will depend on the amount of alkalizing formulation used and the size and capacity of the device or appliance for the alkalizing formulation. The alkalizing formulation will supply to the water being treated one or more of potassium, calcium, and magnesium ions. The water prior to contacting the treatment compound can be filtered through a purification formulation to remove particulates, heavy metals, and various organic compounds.

Abstract: A device (8) for a fuel filter system (10, 14) separates water from the fuel. The water takes on a property enhancing the separation by the device (8) by the action of a medium (42).

Abstract: Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodialysis and electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source, an ED/EDI unit. The carbon source, urease source, and/or the ED/EDI unit can be in the form of removable cartridges.

Abstract: A filtering membrane module and a filtering apparatus having the same, which is capable of remarkably reducing a vibration of filtering membrane module during an aeration process for a maintenance cleaning of filtering membrane, and preventing a crack from occurring in the filtering membrane module by the vibration, wherein the filtering membrane module comprises a filtering membrane; a header, to which the filtering membrane is potted, including a first lateral side and a second lateral side opposite to the first lateral side; a first coupling unit provided at the first lateral side; and a second coupling unit provided at the second lateral side.

Abstract: An anaerobic lagoon wastewater treatment system, which includes a plurality of wastewater treatment zones. The treatment zones are either formed by providing a plurality of separate lagoons or by providing one or more partitioning elements within one lagoon. One or more treatment zones may also be provided in the form of an anaerobic tank. The first wastewater treatment zone in the direction of wastewater flow has a smaller volume than the second wastewater treatment zone. Further, the first wastewater treatment zone achieves a significant reduction in fat, oil and grease removal, as well as in total suspended solids removal, but only a modest reduction in biological oxygen demand. An effluent from the first wastewater treatment zone is mixed with an effluent from the second wastewater treatment zone such that a predetermined ratio of carbon to nitrogen is maintained within the mixture of first and second effluents.

Abstract: An anaerobic digestion device includes a digester body configured to receive organic waste and a plurality of plates coupled to one another so as to divide an interior volume of the digester body into a plurality of compartmentalized chambers. The compartmentalized chambers are movable relative to the digester body to advance a slurry of said organic waste along a length of the digester body. A plurality of ports spaced along the digester body and arranged to vent biogas from the digester body. A storage vessel is configured to receive and store biogas received from the digester body via the ports, and a heating system configured to heat the digester body. The heating system is fuelled by the biogas vented from the digester body.

Abstract: Disclosed are methods for the chromatographic separation of rebaudioside A from stevioside in glycoside solutions that are derived from stevia. The chromatographic separation may be an adsorb/desorb type of chromatographic separation or a fractionation type of chromatographic separation.