Various exemplary agitators for a carbonation system, systems including an agitator for a carbonation system, and methods including an agitator for a carbonation system are provided. In general, an agitator is configured to rotate in a chamber to mix together a gas, such as carbon dioxide, and a liquid, such as water, to form a carbonated fluid. The agitator includes a plurality of paddles configured to encourage the mixing of the gas and the fluid by agitating the gas and the liquid during the agitator's rotation. Each of the arms has an angled outer tip to facilitate the efficient mixing. The agitator includes a hollow shaft through which the gas is configured to flow during the agitator's rotation. The agitator can be part of a carbonation system configured to dispense the carbonated fluid as a beverage.

Various exemplary agitators for a carbonation system, systems including an agitator for a carbonation system, and methods including an agitator for a carbonation system are provided. In general, an agitator is configured to rotate in a chamber to mix together a gas, such as carbon dioxide, and a liquid, such as water, to form a carbonated fluid. The agitator includes a plurality of paddles configured to encourage the mixing of the gas and the fluid by agitating the gas and the liquid during the agitator's rotation. Each of the arms has an angled outer tip to facilitate the efficient mixing. The agitator includes a hollow shaft through which the gas is configured to flow during the agitator's rotation. The agitator can be part of a carbonation system configured to dispense the carbonated fluid as a beverage.

An apparatus for aerating bodies of water includes a floating platform, a motor supported by the floating platform, a transmission which is coupled to the motor and whose output shaft is in the form of a hollow shaft, a fan for supplying air through an air supply line connected thereto, wherein the air supply line is connected to one end of the hollow shaft, a hollow stirring shaft coupled to the other end of the hollow shaft, an stirrer affixed to the free end of the approximately vertical stirring shaft, wherein the stirrer is designated as a hollow body and has a central opening through which air supplied by the stirring shaft can pass, and a multiplicity of air outlet openings.

The present set of embodiments relate to a bioproduction system, method, and apparatus for creating a scalable bioreactor system. Specifically, the present set of embodiments enable the determination of bioreaction performance characteristics of a commercial scale by matching operational parameters between a small test scale bioreaction to that of a commercial scale bioreaction. The system and methods do not rely on simply making bioreactor apparatuses across scales the same dimensionally which would not account for differences in fluid dynamic properties between very small to very large volumes, but requires tuning of a variety of systems (mixing assembly, sparger system, and headspace airflow system) in conjunction with one another to achieve predictive outcomes.

The present set of embodiments relate to a bioproduction system, method, and apparatus for creating a scalable bioreactor system. Specifically, the present set of embodiments enable the determination of bioreaction performance characteristics of a commercial scale by matching operational parameters between a small test scale bioreaction to that of a commercial scale bioreaction. The system and methods do not rely on simply making bioreactor apparatuses across scales the same dimensionally which would not account for differences in fluid dynamic properties between very small to very large volumes, but requires tuning of a variety of systems (mixing assembly, sparger system, and headspace airflow system) in conjunction with one another to achieve predictive outcomes.

The present invention relates to a gassing unit for bubble-free introduction of a process gas into a liquid located in a reactor, wherein the gassing unit comprises at least: a first gas receiving chamber and, spaced therefrom, a second gas receiving chamber for receiving a process gas, the two gas receiving chambers being connected to one another via at least two two-dimensional, gas-conducting diffusion membranes comprising hollow fibers spaced apart from one another and at least partially fixed to one another; a receptacle for a gas supply on at least one of the gas receiving chambers; a receptacle for a shaft on at least one of the gas receiving chambers;
wherein the gassing unit for gassing the liquid in the reactor can be supplied with process gas via the gas supply receptacle, can be set into a rotational movement via the receptacle for the shaft and can form a convection flow within the reactor via the rotational movement of the gassing unit in the liquid. Furthermore, the present invention relates to a method for gassing a process liquid, a gas-liquid reactor comprising a gassing unit according to the invention, and the use of a gassing unit according to the invention for supplying biological cultures with process gases.

Devices suitable for use in an advanced oxidation method for organic and inorganic pollutants deploying OH* radicals and ozone is disclosed. Optionally, a first discharge device, providing OH* radicals and second discharge device providing ozone, are combined to provide desirable chemical and biocidal characteristics. Further, efficient mixing systems for transferring the radicals to the target fluid are disclosed.

A bag assembly for use with a heat exchanger includes a flexible bag having of one or more sheets of polymeric material, the bag having a first end that bounds a first compartment and an opposing second end that bounds a second compartment, a support structure being disposed between the first compartment and the second compartment so that the first compartment is separated and isolated from the second compartment. A first inlet port, a first outlet port, and a first drain port are coupled with the flexible bag so as to communicate with the first compartment. A second inlet port, a second outlet port, and a second drain port are coupled with the flexible bag so as to communicate with the second compartment.

A bag assembly for use with a heat exchanger includes a flexible bag having of one or more sheets of polymeric material, the bag having a first end that bounds a first compartment and an opposing second end that bounds a second compartment, a support structure being disposed between the first compartment and the second compartment so that the first compartment is separated and isolated from the second compartment. A first inlet port, a first outlet port, and a first drain port are coupled with the flexible bag so as to communicate with the first compartment. A second inlet port, a second outlet port, and a second drain port are coupled with the flexible bag so as to communicate with the second compartment.

An apparatus for treating fluids having improved aeration efficiency and operational durability has an aerator, an impeller, and a liquid reservoir containing liquid to be treated. The aerator has: a motor rotating the impeller at a blade tip speed less than 1,100 inches/second; an air line having an outlet submerged in the liquid and an inlet adjacent to the motor; and a blower. The blower forces air through the air line to the air line outlet. The impeller two blades extending radially from the hub. Each blade has: a low drag, pressure equalized foil shape absent of rake; a leading edge extending from the hub tangentially; a 0.47-0.55 impeller EAR; 0.59-0.87 Pmean/D; progressive pitch distribution based on radius where from 50% R and out is constant and from 50% R to the hub is reduced; and 60-75 degree skew with a linear distribution from 50% radius to blade tip.