Provided herein is a first fluid dispersed in a second fluid to form an emulsion of micro-droplets having an average droplet size and having a droplet size distribution around the average droplet size and below a maximum droplet size. The micro-droplets will lose their solvent to transform to micro-spheres exhibiting a particle size distribution around an average particle size and substantially below a maximum allowable particle size. The micro-spheres are subjected to a micro-filter having a relatively narrow pore size distribution around an average pore size, which average pore size is between the average particle size and the maximum particle size. A filtrate of the micro-filter comprises a majority of the micro-spheres that is substantially void of micro-spheres having a particle size exceeding the maximum allowable particle size.

The invention relates to a method and a device for anaerobic digestion from an organic liquid sludge (21), comprising, in a known manner, a step of hydrolysis/acidogenesis of the sludge in a digester (47, 100), a step of acetogenesis for producing acetate from the hydrolysed sludge and a step of methanogenesis from the acetates for producing methane. The method comprises an initial step of creating a hydrolysed sludge emulsion (23) obtained by means of the impact of the sludge with gas (27) injected into the sludge, then continuously supplying the hydrolysed sludge to a reactor (25, 101) pressurised in line relative to the digester, before discharging said sludge from the reactor via a member (29) generating a pressure drop in the hydrolysed sludge, the initial stage being repeated at least once before supplying the, and/or via the, digester.

The invention relates to a method and a device for improving the biodegradability of an organic sludge. It comprises at least two treatment cycles each of a total duration of between around 8 s and around 20 s and each comprising a first step of producing a first hydrolysed sludge emulsion in a first, reduced zone, by injecting a gas into said reduced zone. a second step of abruptly expanding the emulsion in a second zone—the expansion zone—and a third step of recovering the emulsion via a third, restriction zone.

The present disclosure includes mixing apparatuses comprising a first conduit defining an inlet channel, a second conduit defining an outlet channel, and an injection assembly that is disposed between the first and second conduits. The injection assembly can comprise two or more mixers, each having a reducer conduit that defines a mixing channel and an expander conduit that defines an expanding channel. The injection assembly can also comprise a first injection conduit configured to inject fluid into the mixing channel. At least one of the mixers can comprise a shut-off valve movable from an open position to a closed position in which the shut-off valve prevents fluid from flowing from the mixer to the second conduit. Closing the shut-off valve can increase the fluid flow rate in at least one other of the mixing channels.

A gaseous fuel mixer assembly for an engine includes a mixer housing forming gas delivery openings, and positioned to extend across a flow path formed by an intake conduit for the engine. A spool valve is within a central bore in the mixer housing and includes gas distribution openings selectively connectable to the gas delivery openings by moving the spool valve within the mixer housing using a piezoelectric actuator coupled with the spool valve by way of a pivot arm. Sealing lands of the spool valve are in an alternating arrangement with the gas distribution openings, such that at the closed position the sealing lands block the gas distribution openings from the gas delivery openings, and at the open position the respective openings are fluidly connected.

A microbubble generation device comprises a liquid inlet (101), a gas inlet (104), a bubble flow outlet (103), and a gas-liquid mixing chamber (102). An air-permeable hole having an angle structure is provided at a gas-liquid interface of the gas-liquid mixing chamber (102), and a pointed end of the angle structure of the air-permeable hole points to a liquid flow direction. The bubbles generated by the device are extremely small in diameter, prolonging a duration the bubbles stay in the liquid phase, and enhancing gas-liquid mass transfer efficiency.

A method and device for in-line injecting of flocculent agent into a fluid flow of mature fine tailings (MFT). The method includes the steps of: a) providing a fluid flow of mature fine tailings to be treated along a given channel fluidly connected to the pipeline; b) providing a source of flocculating agent; and c) introducing flocculating agent inside the fluid flow of mature fine tailings via a plurality of injection outlets for injecting the flocculating agent into the fluid flow in a dispersed manner so as to increase an exposed surface area of the injected flocculating agent and thus increase a corresponding reaction with the mature fine tailings, for an improved flocculation of said mature fine tailings, and/or other desired end results. Also disclosed is a kit with corresponding components for assembling the in-line injection device to be connected in-line with the pipeline carrying the mature fine tailings to be treated.

An apparatus for treating exhaust gas of a thermal power plant according to the present invention includes: a diffusion module part controlling an exhaust gas flow between a duct disposed at a rear end of a gas turbine of the thermal power plant and the gas turbine to guide the exhaust gas flow toward an inner wall of the duct; a plurality of injection nozzles installed in a flow section in the duct in which the exhaust gas guided toward the inner wall of the duct from the diffusion module part flows, and protruding from the inner wall of the duct; a fluid supply pipe connected to the injection nozzles and extending outside the duct; a fluid supply part supplying a pollutant treatment fluid in liquid phase to the injection nozzles through the fluid supply pipe; and a catalyst module disposed at rear ends of the injection nozzles.

A method and device for in-line injecting of flocculated agent into a fluid flow of mature fine tailings (MFT). The method includes the steps of: a) providing a fluid flow of mature fine tailings to be treated along a given channel fluidly connected to the pipeline; b) providing a source of flocculating agent; and c) introducing flocculating agent inside the fluid flow of mature fine tailings via a plurality of injection outlets for injecting the flocculating agent into the fluid flow in a dispersed manner so as to increase an exposed surface area of the injected flocculating agent and thus increase a corresponding reaction with the mature fine tailings, for an improved flocculation of said mature fine tailings, and/or other desired end results. Also disclosed is a kit with corresponding components for assembling the in-line injection device to be connected in-line with the pipeline carrying the mature fine tailings to be treated.

A first fluid is dispersed in a second fluid to form an emulsion of micro-droplets having an average droplet size and having a droplet size distribution around said average droplet size and below a maximum droplet size. Said micro-droplets will lose their solvent to transform to micro-spheres exhibiting a particle size distribution around an average particle size and substantially below a maximum allowable particle size. Said micro-spheres are subjected to a micro-filter having a relatively narrow pore size distribution around an average pore size, which average pore size is between said average particle size and said maximum particle size. A filtrate of said micro-filter comprises a majority of said micro-spheres that is substantially void of micro-spheres having a particle size exceeding the maximum allowable particle size.