Abstract: The present invention relate to a system for producing hydrogen from ammonia, the system comprising: a membrane reactor comprising membranes for selectively permeating hydrogen; adsorption columns for adsorbing ammonia; and a heat integration system configured to: supply heat to the inlet of the membrane reactor, recover heat from the outlet of the membrane reactor, and regenerate the absorption columns via the recovered heat.

Abstract: Pyrolysis systems and methods of generating hydrogen gas from a hydrocarbon gas. The pyrolysis systems include a solar thermal reactor configured to heat a gaseous hydrocarbon stream, such as methane, to its dissociation temperature. A supersonic turbomachine disposed in a housing receives resulting carbon particles and hydrogen gas from the solar thermal reactor and prevents dissociated carbon from forming deposits on an interior wall of the housing. A particulate separator is located downstream of the supersonic turbomachine to separate the carbon particles from the remaining hydrogen gas.

Abstract: The invention relates to a method and a system for upgrading a hydrocarbon-containing feed gas to a methanol product stream and a hydrogen product stream. As part of the method/system, a synthesis gas stream is compressed to a pressure being higher than the feed pressure of the hydrocarbon feed gas, prior to being fed to a methanol synthesis unit. A hydrogen product stream is provided by separating a hydro-gen rich stream, downstream the methanol synthesis unit.

Abstract: Systems and methods are provided for performing both reforming and partial oxidation as part of the reaction step of a reaction cycle in a cyclic reaction environment such as a reverse flow reaction environment, where heat is provided by direct heating during a regeneration step. In some aspects, performing a combination of reforming and partial oxidation can allow for higher conversion of hydrocarbons than reforming alone while reducing or minimizing the peak temperatures within the cyclic reaction environment. In some aspects, performing both reforming and partial oxidation can also allow for an improved molar ratio of H2 to CO in the resulting effluent from the conversion reaction (relative to partial oxidation) while still maintaining high total conversion.

Abstract: Method and apparatus for converting waste solid sustainable carbon material to chemical products is described herein. The methods add hydrocarbon derived from fossil sources to gas derived from gasifying waste solid sustainable carbon material to enhance hydrogen availability, and in some cases carbon availability, for production of the chemical products. Biomass is used to provide energy to dry solid sustainable carbon material to form dry sustainable carbon material to gasify. Carbon dioxide made by the process is at least partially sequestered to yield a chemical manufacturing process with environmental burden substantially less than conventional processes. Use of the hydrocarbon boosts yield of final products.

Abstract: A petroleum residue stream is heated and reacted with an oxygen stream and a carbon dioxide stream in a gasification unit to produce syngas. At least a portion of the carbon monoxide is converted into carbon dioxide to produce shifted syngas. At least a portion of the shifted syngas is separated to produce a syngas feed stream. At least a portion of the syngas feed stream is converted into methanol. At least a portion of the methanol is converted into one or more alkenes (olefins). At least a portion of the methanol is reacted with carbon monoxide to produce acetic acid. Carbon dioxide produced in the process can be recycled to the gasification unit to facilitate the production of the syngas.

Abstract: Provided is a method of manufacturing syngas including (S1) heat-treating organic wastes under a catalyst in a first reactor to produce a first mixed gas; (S2) separating the catalyst and carbon dioxide (CO2) from the first mixed gas, and recovering a mixed gas from which the catalyst and the carbon dioxide (CO2) have been removed; (S3) converting the carbon dioxide (CO2) separated in (S2) into carbon monoxide (CO) by a reverse Boudouard reaction in a second reactor; and (S4) mixing the mixed gas recovered in (S2) and the carbon monoxide (CO) converted in (S3) to produce syngas.

Abstract: A system includes an outlet flowline from an activated carbon bed, a bypass flowline, a furnace, and a control system. The outlet flowline is configured to flow an acid gas stream out of the activated carbon bed after the activated carbon bed has removed benzene, toluene, and xylene from the acid gas stream. The bypass flowline includes a bypass valve and provides an alternative flow path for the acid gas stream exiting the activated carbon bed. The furnace includes a burner configured to combust at least a portion of the acid gas stream. The control system includes a temperature sensor and a controller. The temperature sensor is configured to measure a furnace temperature. The controller is configured to reduce a percent opening of the bypass valve based on the measured furnace temperature.

Abstract: A nitride semiconductor material having low lattice thermal conductivity and a heat flow switching element including the same are provided. The nitride semiconductor material according to the present invention is a metal nitride represented by M-Si—N—Te (where M represents at least one kind of transition metal element, and Te represents an arbitrary element), and has a thermal effusivity of less than 2000 Ws0.5/m2K. In particular, the M is at least one of Cr, Mn, Ni, Mo, and W. In addition, a heat flow switching element according to the present invention includes an N-type semiconductor layer 3, an insulator layer 4 formed on the N-type semiconductor layer, and a P-type semiconductor layer 5 formed on the insulator layer, wherein at least one of the N-type semiconductor layer and the P-type semiconductor layer is formed from the nitride semiconductor material described above.

Abstract: Provided is a method for preparing silicon nitride powder for manufacturing a substrate. The method for preparing silicon nitride powder for manufacturing a substrate, according to an embodiment of the present invention, comprises the steps of: preparing mixed raw material powder comprising metallic silicon powder and crystalline phase control powder; preparing the mixed raw material powder into granules having a predetermined particle size; nitrifying the granules at a predetermined temperature ranging from 1,200-1,500° C. while nitrogen gas is applied to the granules at a predetermined pressure; and pulverizing the nitrified granules. According to the method, it is easy to realize powder having an ? crystal phase at a desired level, and when this is realized as a substrate, a substrate having compact density can be manufactured.

Abstract: A preparation method of a ferrous lithium phosphate material includes the following steps: (1) mixing zinc source, copper source and complexing agent solution, then mixing with iron source and phosphoric acid source, evaporating and dehydrating to obtain a jelly, and then primary sintering the jelly under a protective atmosphere to obtain a solid-phase material; and (2) mixing the solid-phase material prepared in step (1) with a lithium source, grinding and secondary sintering under a protective atmosphere to obtain the ferrous lithium phosphate material.

Abstract: The present disclosure relates to a nitrogen-doped porous carbon material and a preparation method and use thereof. In the present disclosure, the preparation method of a nitrogen-doped porous carbon material includes the following steps: conducting carbonization on a biomass material to obtain a carbon source; and mixing the carbon source with a potassium 4-aminobenzoate aqueous solution, and drying and conducting calcination in a protective atmosphere sequentially to obtain the nitrogen-doped porous carbon material. In the preparation method, the potassium 4-aminobenzoate is used as a nitrogen source as well as an activator for preparing the nitrogen-doped porous carbon material. Nitrogen doping is simultaneously completed during the activation, and the nitrogen-doped porous carbon material can be prepared through one-step calcination.

Abstract: A carbon film excellent in electromagnetic shielding performance is provided. The carbon film is made of a carbon nanotube assembly and has a fractal dimension of 2.6 or more and 4 or less in a wavenumber range of 0.0001 (1/?) or more and 0.001 (1/?) or less when a scattering profile obtained by performing ultra-small-angle X-ray scattering on at least one surface of the carbon film is fitted to the Beaucage equation, while having a porosity of 80% or more and 95% or less.

Abstract: The purpose of the present invention is to provide a method and an apparatus for producing carbon nanotube aggregates to improve the contact efficiency between a source gas and catalysts, thereby enabling the efficient production of high-quality CNT aggregates. A method for producing carbon nanotube aggregates according to the disclosure is a method including a growth step of growing the carbon nanotube aggregates on substrates with catalysts on surfaces. In the growth step, a source gas supply step of forming a substrate layer by stacking the substrates at a lower portion of a growth furnace configured to perform the growth step, and supplying a source gas to the substrate layer through a plurality of gas injection ports arranged at the lower portion of the growth furnace, and an in-growth furnace stir and conveyance step of mechanically stirring and/or conveying the substrate layer are performed at least in part in an overlapping manner.

Abstract: A graphene nanoribbon represented by formula (1): wherein R1 represents a linear alkyl group having 1 to 12 carbon atoms, R3 and R4 are both hydrogen atoms, or R3 and R4 taken together form a group represented by —SiR2aR2b—, wherein R2a and R2b are the same or different, and each represents a hydrogen atom, an optionally branched alkyl group having 1 to 4 carbon atoms, or a phenyl group, and n represents an integer of 1 or more, is a novel GNR obtained by a simpler and industrially advantageous method for GNRs.

Abstract: A composition of graphene-based nanomaterials characterized by at least one area of one atomic layer of graphene monoxide, wherein at least a portion of oxygen molecules present in the graphene monoxide are incorporated into specific crystalline structural moieties, methods of making the same, electrodes in electrochemical devices incorporating the same, and compositions of lithium and graphene monoxide containing materials that result from cycling said electrodes.

Abstract: A method for water-efficient production of graphite of low density from paper includes steeping paper in a vessel in dimethyl sulfoxide to generate paper fibers, admixing polyacrylonitrile to the dissolved the paper fibers with stirring until formation of a paste or a mixture with pastelike consistency, introducing the paste into a mold and subsequently forcing excess liquid from the paste by pressing, to form a presscake, immersing the presscake subsequently in water for curing the polyacrylonitrile for a specified time, until polymerization of the polyacrylonitrile and formation of a cured presscake, initially drying the cured presscake in air at relatively high temperature up to 100° C., heating up the cured presscake for stabilization in air up to 250° C. to remove the residual moisture, and carbonizing the cured and dried presscake in an oven at >1000° C. and then graphitizing it at >2000° C. to give a low-density graphite block.

Abstract: Activated carbons and methods of making activated carbons are provided. The activated carbon can be produced by activating lignin or a high-lignin feedstock and then subjecting the activated carbon to a sweeping gas at a first elevated temperature.

Abstract: The application provides a porous negative electrode active material and a preparation method thereof, wherein the porous negative electrode active material includes: a first structure including 0-4 valence silicon elements and metal doping elements, wherein the mass percentage of the silicon elements is not less than 40%, and the mass percentage of the metal doping elements is 1%-15%; the first structure includes a porous structure, and the porous structure includes micropores with a pore diameter of less than 2 nm and mesopores with a pore diameter of 2 nm-50 nm; the first structure further includes silicon grains, and the size of the silicon grains is no more than 10 nm; the adsorption-desorption curve of the porous negative electrode active material has a hysteresis loop, the relative pressure corresponding to the hysteresis loop is 0.4-1, and the adsorption capacity is 5 cm3/g-25 cm3/g.

Abstract: A colloidal dispersion of particles of silica having a particle size of from 3 nm to 100 nm, to which ions of one or more metals are adsorbed, selected from metals having atomic numbers 21-31, 39-46, 48-50, 57-82, and 89-93, and a method for preparing the dispersion. The dispersion may be used in various fields of use of metals.

Abstract: The invention relates to a process for producing a silicate from a plant ash comprising crystalline silica, wherein at least a portion of said crystalline silica is cristobalite. The process comprises reacting said plant ash with a base in the presence of an additive which is a salt comprising a sulfur oxyanion. The invention also relates to a silicate obtainable from said process and to a process for preparing a precipitated silica from said silicate. The invention also concerns a reaction mixture which can be used for said processes.

Abstract: A method for preparing an aluminosilicate molecular sieve having the SSY framework structure is described. The method includes (1) a step of preparing a reaction mixture containing an aluminosilicate zeolite having an FAU framework type; N-ethyl-N-(3,3,5-trimethylcyclohexyl)pyrrolidinium cations and/or N-ethyl-N-(2,4,4-trimethylcyclopentyl)pyrrolidinium cations; an alkali metal; hydroxide ions; seed crystals; and water; and (2) a step of subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the aluminosilicate molecular sieve. The resulting molecular sieves are useful as catalysts, particularly when used in combination with exchanged transition metal(s).

Abstract: Disclosed is boehmite having a ratio of a micropore volume to a mesopore volume of 0.50 or more and a loose bulk density of 0.30 g/mL or more. The loose bulk density is preferably 0.70 g/mL or more.

Abstract: A process for removing carbon dioxide from a material includes introducing the material onto a first segment of a conveyance system comprising the first segment and a second segment that is physically separated from the first segment, heating the material at the first segment for a first time using a first infrared emitter, conveying the material from the first segment to the second segment, and heating the material at the second segment for a second time using a second infrared emitter. The carbon dioxide removed from the material can be captured by a vacuum pump and stored, and the vacuum pump can maintain a partial pressure for the process. The process can be used to create lime and clinker with minimal CO2 emissions and to remove CO2 that is stored in various materials.

Abstract: The present invention relates to a method for preparing an inorganic compound using desulfurization gypsum for reducing greenhouse gas emissions, and, more specifically, to a method for preparing an inorganic compound, in which calcium sulfate and calcium carbonate, which have various uses as construction materials and the like, can be prepared using, as raw material, desulfurization gypsum which, being a recycled resource, is industrial waste, and an extraction agent, and the extraction agent can be reused after separation, and thus, compared to existing processes, greenhouse gases and manufacturing costs can be remarkably reduced.

Abstract: Gallia particles containing molybdenum. A method for producing the gallia particles, including calcining a gallium compound in the presence of a molybdenum compound.

Abstract: A cobaltosic oxide-loaded titanium dioxide heterojunction nanozyme and a preparation method therefor and an application thereof are provided. The cobaltosic oxide-loaded titanium dioxide heterojunction nanozyme includes a surface oxygen vacancy doped TiO2-x nanosheet and a variable-valence metal-containing Co3O4 nanozyme, wherein the Co3O4 nanozyme is loaded on the surface of the TiO2-x nanosheet to construct and obtain the Co3O4@TiO2-x heterojunction nanozyme. The Co3O4@TiO2-x heterojunction nanozyme is used as a nanozyme to catalyze and generate endogenous O2 and consume GSH, so as to improve the tumor microenvironment (TME), and achieve the effect of eradicating tumors by cooperating with sonodynamic therapy and catalytic therapy.

Abstract: The present invention relates to the technical field of functional materials, and in particular to an amorphous metal oxide hollow multi-shell material and a preparation method therefor and an application thereof. The method includes the following steps: 1) performing a heating reaction on a carbon source aqueous solution, filtering, washing, and drying to obtain a carbon sphere template; 2) dispersing the carbon sphere template obtained in step 1) in a first metal salt solution, heating, adsorbing, and drying to obtain a first solid precursor; 3) dispersing the solid precursor obtained in step 2) in a second metal salt solution again, adsorbing, and drying to obtain a second solid precursor; and 4) calcinating the second solid precursor obtained in step 3) to obtain the amorphous metal oxide hollow multi-shell material.

Abstract: The invention provides a process for preparing molybdenum and tungsten oxyhalide compounds which are useful in the deposition of molybdenum and tungsten containing films on various surfaces of microelectronic devices. In the process of the invention, a molybdenum or tungsten trioxide is heated in either a solid state medium or in a melt-phase reaction comprising a eutectic blend comprising alkaline and/or alkaline earth metal salts. The molybdenum or tungsten oxyhalides thus formed may be isolated as a vapor and crystallized to provide highly pure precursor compounds such as MoO2Cl2.

Abstract: A composite material and a preparation method therefor and a lithium-ion battery positive electrode material. The preparation method for the composite material comprises the following steps: performing first calcination treatment on a mixture of a manganese source, a nickel source, a lithium source and a cobalt source to obtain cobalt-doped lithium nickel manganese oxide; and performing second calcination treatment on a mixture of the cobalt-doped lithium nickel manganese oxide and silicon dioxide.

Abstract: A preparing method for a cathode active material precursor for a lithium-ion batteries with a tailor-made concentration gradient, includes: an aqueous metal ion solution preparation step for preparing an aqueous metal ion solution A for center and an aqueous metal ion solution B for surface having different compositions, concentrations, and volumes; a mixed metal ion solution formation step for gradually mixing the aqueous metal ion solution B for surface to the aqueous metal ion solution A for center; a control step for setting a composition and a concentration gradient of the mixed metal ion solution and controlling the same in real time, before moving the mixed metal ion solution to a co-precipitation reactor; and a co-precipitation reaction step for performing a co-precipitation reaction according to conditions set in the control step.

Abstract: A water purifier is provided. A water purifier according to one aspect of the present invention may include a housing having a first accommodation space therein, and made of a paper material; a water purifier faucet disposed in the first accommodation space to receive raw water and discharge purified water; and a filter coupled to the water purifier faucet to generate the purified water by filtering the raw water, wherein the water purifier faucet includes a base frame having a second accommodation space therein in which the filter is accommodated; a water inlet module provided on one side of the base frame to supply raw water introduced from the outside to the filter; and a water outlet module provided on the other side of the base frame to receive the purified water generated by the filter and discharge it to the outside.

Abstract: A beverage container comprising an outer enclosure made of glass or metal and a hopper part made of glass or metal that is arranged within the outer enclosure. The hopper part defines an upstream volume for untreated beverage and is adapted for holding a capsule for liquid treatment media downstream the upstream volume. The beverage container comprises a hopper holder that is configured to hold the hopper part in the outer enclosure, the hopper holder comprising a hopper holder gasket that is configured to provide a friction fit between the outer enclosure and the hopper part.

Abstract: An integrated device and method for enrichment, purification and separation of microplastics in a secondary effluent are provided. This integrated device comprises a micro-spray system and a filtering system with multi-stage filtering units, and marked screen meshes were installed in each filtering unit. The microplastics in secondary effluent are enriched on the surface of the marked screen meshes through the retaining effect. Then, lower concentration of alkali, acid or oxidant combined with the heat treatment to weaken the interaction forces between the inorganic/organic foulants and the enriched microplastic. On this basis, the micro-spray system was used to rinse the multistage filtration system, which generated shear force to carry away the foulants on the surfaces of the enriched microplastics, thereby achieving the purification and separation of microplastics synchronously. These are performed in the marked screen meshes, in which the microplastic are not subject to any path transfer or loss.

Abstract: The invention disclosed herein includes apparatus and a method for enhancing the evaporation rate of leachate from leachate evaporator ponds. The HIAP apparatus and method promotes enhances evaporation by providing heat from high powered industrial heat lamps that direct heated air and heat energy across the air/leachate liquid interface of the evaporator pond surface to increase the evaporation rate of leachate from the evaporator pond.

Abstract: A carbonized manure photothermal evaporator derived from naturally abundant farm waste has high solar absorptance, effective water transportation, and rapid salt dissipation. It achieves high evaporation under 1-sun irradiance and is recyclable, durable, and cost-effective for use in energy-efficient solar-driven interfacial desalination.

Abstract: A solar thermal based water treatment system and a process for treating impure/industrial wastewater is disclosed. The solar thermal based water treatment system vaporizes impure/wastewater using incident solar radiations in a third unit with only air as a medium. The system has a fourth unit and a fifth unit for condensing water vapor and obtaining purified water in the form of condensate. The system also includes an eighth unit for drying the sludge or slurry using dry air for obtaining dry solid waste. The system also includes a ninth unit to remove the undesirable gases from exhaust air before releasing in the atmosphere.

Abstract: The disclosure provides a solar evaporation substrate for recovering water from a solution. The substrate includes a porous support and an activated carbon-cement composite. The disclosure also provides a solar thermal evaporation apparatus based on a novel substrate. The apparatus includes an open tray, a solution, a solar evaporation substrate, an enclosure and a plurality of collectors. The disclosure further provides a method for preparing the substrate from activated carbon-cement composite coated porous support and that is used to heat the solution by harvesting solar energy. The apparatus and method is chemical free, cost effective and gives a high evaporation rate of 2.4 kg/m2 h under one-sun illumination with zero carbon footprint.

Abstract: An exemplary power system utilizes turbines configured within a water intake conduit to the desalination processor to produce power for the desalination processor. Water intakes are configured to provide a natural flow of water to the desalination processor though hydrostatic pressure. One or more turbines coupled with the water intake conduits are driven and produce power for the system, as well as through solar and battery power. The desalination processor incorporates Graphene filters to and may include a structured water system to increase the H3O2 concentration of the water prior to Graphene filters. Discharge water may be pumped back into the body of water but be separated from the intakes, A secondary power source, such as a renewable power source, may be used to produce supplemental power for the system. Power produced may be provided to a secondary outlet, such as a power grid, all above and/or underground.

Abstract: A discrimination system that forms a fluid column and interrogates objects within the fluid column with an excitation source. An optical arrangement collects output electromagnetic radiation emanating from the excited objects disposed within the fluid column and directs the output electromagnetic radiation to a detector. An analyzer reduces the positional dependency of the detected intensity by normalizing the value based on the position of each object.

Abstract: A UV reactor comprises a reactor body shaped to define longitudinally extending inner and outer reactor chambers. One or more passages located at a first longitudinal end of the inner reactor chamber provide fluid communication between the inner and outer reactor chambers. The outer reactor chamber surrounds a portion of the inner reactor chamber that includes the first longitudinal end. The UV reactor also comprises: an inlet/outlet in fluid communication with the outer reactor chamber; and an outlet/inlet in fluid communication with the inner reactor chamber. The outlet/inlet is located at a second longitudinal end of the inner reactor chamber. A cap connected to the reactor body houses one or more UV radiation emitters optically oriented to direct UV radiation into the inner reactor chamber. An inner fluid-flow cross-section of the inner reactor chamber may be greater than an outer fluid flow cross-section of the outer reactor chamber.

Abstract: A multi-stage circulating separation equipment is used to solve the problem of poor effect of conventional separation of a mixture. The multi-stage circulating separation equipment comprises a tank, a plurality of cyclones, a plurality of pressurizing pumps, and a pipeline module. The tank includes an upstream end and a downstream end. The tank includes an interior divided by a plurality of partitioning boards into a crude liquid chamber and a plurality of treatment liquid chambers. The crude liquid chamber and the plurality of treatment liquid chambers are arranged from the upstream end towards the downstream end. Each of the plurality of cyclones includes at least one discharge port and at least one return port. The discharge ports of the plurality of cyclones intercommunicate with the plurality of treatment liquid chambers, respectively. The pipeline module is connected to the tank, the plurality of cyclones, and the plurality of pressurizing pumps.

Abstract: A method for the electrochemical remediation of a metal species comprises flowing a contaminated solution comprising a metal species to be removed through an electrochemical cell that includes a working electrode and a counter electrode spaced apart from the working electrode. The working electrode comprises a conductive substrate or current collector with a polymeric coating thereon, where the polymeric coating comprises a semiconducting or redox-active polymer. A reducing potential is applied to the electrochemical cell, thereby inducing the metal species from the contaminated solution to deposit onto the working electrode. After depositing the metal species, a recovery solution is flowed through the electrochemical cell. An oxidizing potential is applied to the electrochemical cell, thereby stripping the metal species from the working electrode and recovering the metal species in the recovery solution.

Abstract: A dual faucet with a sterile water and general water supply function includes a faucet body including a body portion, a sterile water outlet faucet connected to the body portion and through which sterile water comes, and a regular water outlet faucet connected to the body portion near the sterile water outlet faucet and through which raw water supplied from a raw water pipe line comes, and a sterile water supply unit including a casing, and an electrolytic bath module disposed in the casing and configured to produce sterile water by electrolysis of the raw water supplied from the raw water pipe line and supply the produced sterile water to the sterile water outlet faucet, wherein the operation of the electrolytic bath module is controlled to adjust an ion concentration of the sterile water according to a measured internal voltage value or a measured internal current value.

Abstract: According to an embodiment of the present disclosure, an upflow electrochemical coagulation reactor is provided. The upflow electrochemical coagulation reactor comprises a cathode fixed inside the reactor; at least one movable anode positioned at a predetermined distance from the cathode; a sensor configured to sense a change in the distance between the cathode and the anode; a controller configured to make the distance between the cathode and the anode constant while adapting to a change in the distance between the cathode and the anode sensed by the sensor; and a first separator and a second separator, the first separator being positioned above the second separator; and a sludge outlet being in fluid communication with the second separator for sludge delivery therebetween. By using the upflow electrochemical coagulation reactor, power-efficient removing of low-concentration contaminants present in wastewater can be performed.

Abstract: Microfluidic devices for sterilizing fluids using pulsed electric fields are disclosed. In some embodiments, a device may include first and second electrode layers and a spacer layer positioned between the electrode layers. The spacer layer may define one or more fluid channels extending between the electrode layers. A power supply may be coupled to the electrode layers and configured to supply voltage pulses to the electrode layers to generate electric field pulses within the fluid channels. In some embodiments, the electrode layers may be textured such that the electric fields generated in the fluid channels are non-uniform.

Abstract: A high-solids wastewater treatment system is disclosed. The wastewater treatment system includes a ballasted reactor, a solids-liquid separation subsystem, a pre-treatment subsystem, a ballast feed subsystem, and a ballast recovery subsystem. The high-solids wastewater treatment system can include a reaction tank, a thickener, and a filter press. A method of treating high-solids wastewater is also disclosed. The method includes contacting a wastewater feed with a coagulant or flocculant, thickening the dosed wastewater, treating the effluent with a ballast, settling the treated wastewater, and conveying the ballasted sludge to the wastewater feed, dosed wastewater, or treated wastewater. The wastewater feed may have more than 500 mg/L of total suspended solids. The wastewater feed may contain inorganic solids.

Abstract: The present invention relates to a method of removing a uranium source from a water, a kit for removing a uranium source from a water, and a use of a powder comprising (i) an alkaline earth carbonate, (ii) an alkaline earth compound chosen from a chloride and/or a nitrate compound, (iii) at least one alkali metal hydrogen carbonate, and optionally (iv) an alkali metal carbonate in a method of removing a uranium source from a water.

Abstract: The present embodiments generally relate to compositions and methods for the treatment of fluids in need of treatment, such as, for example, industrial wastewaters. The compositions and methods for treating the fluids in need of treatment generally comprises the use of one or more stable ferrous products in amounts effective to treat said fluids.

Abstract: An oscillating bubble reactor can include a stream inlet configured to receive a contaminated liquid stream, a reactant gas source, a serial venturi reactor (SVR), a micro-nano-bubble aerator (MNBA), and a treated stream outlet. The SVR can be connected downstream to the stream inlet and configured to receive the contaminated liquid stream. The SVR can include a set of serially connected constrictions alternating with pipe segments having a larger diameter than a smaller diameter of the constrictions. The MNBA can be in the stream inlet or the serial venturi reactor. The MNBA can be connected to the reactant gas source and configured to release reactant gas microbubbles, nanobubbles, or a combination thereof into the contaminated liquid stream from the reactant gas source. The treated stream outlet can be connected downstream to the serial venturi reactor.