A system for mixing acid and water can include a tank for holding acid, an acid pump for pumping acid out of the tank, an acid control valve, a water pump for pumping water, a water control valve, a flush valve to selectively flush the system with water, and a controller to control the pumps and the valves. The acid control valve and/or the water control valve can be an electronically controlled valve. The flush valve can be an electronically controlled valve to selectively permit water to flow from downstream of the water pump to upstream of the acid pump. The acid control valve, the water control valve, the flush valve, or any combination thereof can be throttled by the controller to control flow therethrough.

The disclosure relates to an application system for mixing a plurality of components for producing a multicomponent mixture, in particular a polyurethane foam, and for introducing and/or applying the multicomponent mixture into and/or onto an article, in particular a lithium-ion battery, wherein the application system comprises an application device. Furthermore, a method for mixing a plurality of components for producing a multicomponent mixture and for introducing and/or applying the multicomponent mixture into and/or onto an article is disclosed.

An oxygen nanobubble system may include a liquid source for liquid to be treated with oxygen nanobubbles. The system may also include a field portable oxygen nanobubble device including a portable housing, an air compressor carried by the portable housing and configured to generate compressed air, an air dryer carried by the portable housing and coupled downstream from the air compressor, an oxygen concentrator carried by the portable housing and coupled downstream from the air dryer, and a liquid pump carried by the portable housing and configured to pump liquid from the liquid source. The field portable oxygen nanobubble device may also include an oxygen nanobubble generator carried by the portable housing and coupled downstream from the liquid pump and to the oxygen concentrator to generate oxygen nanobubbles within the liquid.

Gas-liquid injection apparatus, having a body, a liquid passage, a bypass passage, a gas inlet, a gas-liquid mixing cavity and a gas-liquid mixing passage, wherein the body includes an inlet end face and an outlet end face, and the liquid passage includes a liquid inlet that opens onto the inlet end face and a passage outlet that is arranged on the outlet end face, and includes a converging section and a throat section that are arranged in sequence downstream of the liquid inlet; one end of the bypass passage opens to the converging section, and the other end is connected to the gas-liquid mixing cavity, and the bypass passage allows liquid flowing in the liquid passage to bypass to the gas-liquid mixing cavity; the gas-liquid mixing cavity is located at the periphery of the liquid passage; the gas inlet opens onto the inlet end face.

Provided an apparatus and method for carbonation treatment capable of efficiently carrying out a carbonation treatment. Provided is a carbonation treatment apparatus for subjecting a solid matter contained in a treatment object to a carbonation treatment by bringing the treatment object into contact with carbon dioxide while stirring the treatment object. The apparatus includes: a reaction vessel having a housing space in which the treatment object is housed; at least one stirrer that rotates about a vertically extending axis to stir the treatment object housed in the housing space; and the at least one stirrer being configured to move in planetary motion in the housing space when the treatment object is stirred.

A high-shear mixing chamber is provided having a single wide slot microchannel that enables a higher throughput, less plugging, and a longer life (e.g., less wear) than typical multi-slotted mixing chambers. The provided mixing chamber may include an inlet and an outlet in fluid communication with a single wide slot microchannel (e.g., via an inlet and outlet plenum). In some aspects, the wide slot microchannel may have a stepped interior such that the wide slot microchannel has portions with different depths. The wide slot microchannel has a first surface opposite a second surface and one or more steps may be formed with the first surface alone, the second surface alone, or with both the first surface and the second surface. The steps may extend a full length of the microchannel between the inlet and outlet chambers.

A system to produce a mixture of fluids includes a pressure source, a pressure regulator, at least a first container containing a first fluid and a second container containing a second fluid, and a microfluidic mixer. A control unit is configured to control the pressure level of the first fluid and the pressure level of the second fluid. The control unit is also configured to control an opening and closing of the first valve and of the second valve to inject the first fluid and second fluid successively into the microfluidic mixer, thereby generating a profile of fringes of the first fluid and of the second fluid within the common outlet channel.

A method for improving stability and/or absorption of one or more biologically active agents including preparing formulations wherein a biologically active agent is dispersed using a homogenizer and/or a nanofluidizer; and optionally: i) enriching the formulation; and/or ii) delivering the formulations to a subject whereby the biologically active agent is absorbed by said subject, and/or iii) testing the formulation to identify suitable dosing ranges using computational modeling of biomolecular pathways to determine at least one feature selected from absorption in a cell, saturation of a cell, and potential toxicity in a cell, and/or iv) testing the formulation by monitoring with a low impact, minimally intrusive heart rate variability monitoring to enable rapid determination of neurological and physiological effects of a dosage, establishing dosing levels of the biologically active agent, and/or v) defining the corresponding metabolic effects of the dosage of the biologically active agent on the subject.

A vacuum line and method for controlling a vacuum line in which an auxiliary pumping device and a diluent gas injection device are controlled according to a first operating mode in which the pressure prevailing in the discharge pipe is maintained at less than or equal to 20,000 Pa or according to a second operating mode in which the pressure prevailing in the discharge pipe is greater than 20,000 Pa, and the injection of a diluent gas into the stream of the pumped gases is controlled, downstream of an intake of the rough pumping device, such as into the discharge pipe and/or into the rough pumping device and/or into the auxiliary pumping device by the diluent gas injection device in the second operating mode. This reduces the potential for explosion in the vacuum line via injection of diluent gas to lower flammable gas concentration.

Embodiments of the present disclosure generally relate to apparatus for solvent extraction of coal and to processes for solvent extraction of coal. In an embodiment, an apparatus for solvent extraction of coal is provided. The apparatus includes a plurality of stationary members coupled to a stationary shaft, each stationary member having a stationary member opening. The apparatus further includes a rotatable shaft extending through the plurality of stationary members. The apparatus further includes a plurality of rotatable members coupled to the rotatable shaft, each rotatable member paired with a stationary member, and each rotatable member has a rotatable member opening configured to rotate relative to the stationary member opening. The apparatus further includes a plurality of members for agitating materials passing through the apparatus, the members for agitating materials coupled to the rotatable shaft, each member for agitating materials positioned between the paired stationary members and rotatable members.