A Container is disclosed with a stirrer device suitable to be installed on machines for dispensing fluid products. The container comprises a tank with a particular configuration defined by two cylinders each having a respective longitudinal axis, wherein the distance between two of the longitudinal axes is less than the diameter of a cylinder, and in which two stirrer units are comprised, coaxial to the cylinders of the tank. The stirrer units have elements that have a radial dimension a little less than the radius of the cylinders and are disposed along the substantial entirety of the longitudinal extension of shafts rotating axially, said shafts not having around them a zone not spatially affected by a stirrer element attached to said corresponding shaft.

Vessel configured to facilitate concentration of a product in a solution. The vessel may include outlet ports to deliver the solution to a processing system (such as a filtration system), and inlet ports. The inlet ports may be at progressively lower levels for return of fluid thereto reduced in volume as a result of filtration thereof. A smaller volume sump may be provided below a main tank of the vessel to facilitate concentration of the solution. The sump may include ridges facilitating collection of the product of interest from the solution, and/or reinforcing the sump walls, and optionally forming a vortex breaker. A spray ball may be provided to spray materials, such as buffer solution, into the vessel. The spray ball may direct materials to facilitate retrieval of product from the vessel. One or more components of the vessel may be advantageously formed of disposable material for single use thereof.

A system for growing algae includes a pivot arm pivotally coupled to a pivot connection positioned in a pond containing water and algae, and a mixing device coupled to the pivot arm and extending into the pond to mix the water and the algae as the pivot arm rotates.

The present invention provides a system and method for automatic nucleic acid extraction and qualitative analysis. The system comprises a magnetic rotary mixer which comprises a plurality of magnetic rods for generating magnetism, configured to be retractable from the magnetic rotary mixer; a plurality of spin shaft for mounting tips, and the plurality of magnetic rods extend therein; an auto stage comprises a plate holder, which allows a plate place thereon; a mixer holder to hold the magnetic rotary mixer over the plate holder; and a heat plate, disposed under the plate holder for heating the plate. The present invention provides an automated high-throughput nucleic acid extraction and qualitative diagnosis with high efficiency and high accuracy, which is easy to interpret for operators, and realize that nucleic acid extraction and molecular detection can be completed at one time in a single device.

A wastewater purification apparatus includes an elongate tank, which has an inflow for feeding wastewater, a first vertical agitator with a first hyperboloid agitator body mounted on a vertical first agitator shaft and provided in a first treatment portion downstream of the inflow on the first narrow side, a second vertical agitator with a second hyperboloid agitator body mounted on a vertical second agitator shaft and provided in a second treatment portion downstream of the first vertical agitator, an aeration device with a fan for aerating wastewater received in the tank, a first drive device for rotating the first hyperboloid agitator body in a first rotation direction, a second drive device for rotating the second hyperboloid agitator body in a second rotation direction opposite the first rotation direction, and a decanter for discharging purified wastewater in a third treatment portion on a second narrow side opposite the first narrow side.

A sparge for use in a high-pressure vessel operated at elevated temperatures and having high energy agitators for suspending mineral containing particles in a slurry. The sparge injects reagent fluids into the slurry to reduce reaction times and for controlling process parameters for extracting valuable minerals from the particles. The sparge has a vapor lock to inhibit the flow of particulate material and detritus material under low or no fluid flow situations which occur commonly in the operation of high pressure autoclaves. The sparge has a fluid flow path that increases in cross-sectional area in the direction of flow of reagent fluids so as to keep reagent fluids flowing at a velocity below a critical impingement velocity that can cause metal materials of the sparge to either wear rapidly, combust and in the worst case lead to loss of containment and violent and rapid depressurization of the high pressure vessel.

A system for growing algae includes a pivot arm pivotally coupled to a pivot connection positioned in a pond containing water and algae, and a mixing device coupled to the pivot arm and extending into the pond to mix the water and the algae as the pivot arm rotates.

A stirring impeller, an arrangement, and a use. The impeller comprises a hub disc comprising a shaft attachment structure arranged centrally in the hub for receiving a shaft centrally and perpendicularly from an upper side of the hub disc, a plurality of upper blades arranged on the upper side of the hub disc, and a plurality of lower blades arranged on a lower side of the hub disc. At least one of said plurality of upper blades is arranged to have jet angle of 5-45, and the lower blades have a jet angle that is different than said jet angle of least one of said plurality of upper blades.

A well material distribution method includes obtaining at least one material-containing sack containing at least one well material, placing the at least one material-containing sack in an automatic sack cutting machine, opening the at least one material-containing sack and dispensing the at least one well material by operation of the automatic sack cutting machine and distributing the at least one well material from the automatic sack cutting machine directly into a mixing vessel configured to simultaneously handle a plurality of well materials. Well material distribution systems are also disclosed.

A well material distribution method includes obtaining at least one material-containing sack containing at least one well material, placing the at least one material-containing sack in an automatic sack cutting machine, opening the at least one material-containing sack and dispensing the at least one well material by operation of the automatic sack cutting machine and distributing the at least one well material from the automatic sack cutting machine directly into a mixing vessel configured to simultaneously handle a plurality of well materials. Well material distribution systems are also disclosed.