Provided is a method for manufacturing a microbicide having high microbicidal performance for eradicating microbes. This method for manufacturing a microbicide comprises: a step for preparing an inorganic aqueous solution containing an inorganic component having seawater as a raw material thereof, an ozone mixing step for mixing ozone into the inorganic aqueous solution, and a stirring step for stirring the inorganic aqueous solution mixed with ozone and passing through a bubble generation nozzle; wherein, the temperature of the inorganic aqueous solution in the ozone mixing step and the stirring step is 0° C. to 30° C., and when the amount of inorganic aqueous solution treated in the ozone mixing step and the stirring step is defined as X liters and the treatment rate of the ozone mixing step and the stirring step is defined as Y liters/minute, then the microbicide is manufactured by alternately repeating the ozone mixing step and the stirring step for A.Math.X/Y minutes (where A is 30 or more).

Viscosity and other properties are determined at desired temperatures in drilling mud and other fluids by using a versatile cavitation device which, operating in the cavitation mode, mixes and heats the fluid to a specified temperature, and, operating in the shear mode, acts as a spindle for application of Couette principles to determine viscosity as a function of shear stress and shear rate. The invention obviates the practice of adjusting rheology of a drilling fluid by passing it through the drill bit. Drilling fluid may be managed by a “straight-through” method to the well, or by placing the cavitation device in a loop which isolates an aliquot of known volume and circulating the fluid through the loop including the cavitation device. A controller may be programmed to manage the viscosity and other properties at various temperatures by controlling the power input and angular rotation of the “spindle” (which has cavities on its cylindrical surface), and feeding viscosity-adjusting agents and other additives to the fluid. Data may be collected from the loop and used in the “straight-through” mode until it is determined that conditions require a new set of data, or the loop may be used continuously. The system may be used with a supplemental viscometer, density meter, and other instruments.

A test device having a micro flow channel including a reaction part where a reactant that is reactive to a tested chemical dispersed in a tested fluid is fixed, and at least one actuator for actuating the tested fluid to move in at least one of two opposite sides of the micro flow channel so as to homogenize a density distribution of the tested chemical in the tested fluid. The tested fluid is sent in the micro flow channel a plurality of times.

Systems, devices, and methods are presented for optimizing the formation of gas nanobubbles in a disinfecting solution. In an example system for treating contaminated water, a centrifugal pump draws the water from a reservoir and circulates the water in and through a circuit of elements including a mixing chamber in the pump, a pressure vessel, a backflow valve, a Venturi injector, and a pair of nozzles immersed in the reservoir. The system injects ozone-rich gas into the fluid to produce an aqueous solution containing a volume of gas nanobubbles. The nozzles release the gas nanobubbles into the reservoir, creating highly reactive compounds that destroy organic compounds and other contaminants in the water.

A loop dissolution system specifically suited for dissolving uranium compounds in an acidic bath that continually circulates the acid over the uranium compound to be dissolved. The dissolution system includes an upper material feed dissolution plate on which the material to be dissolved is fed, a lower mixing and dissolution ring and a drop pipe system connecting and establishing fluid communication between the upper material feed dissolution plate and the lower mixing and dissolution ring. A pump for circulating the acidic fluid has an intake from the lower mixing and dissolution ring and an outlet that directs a first portion of a fluid to the upper material feed dissolution plate and a second portion of the fluid back into the lower mixing and dissolution ring to circulate the material suspended in the fluid within the lower mixing and dissolution ring to promote turbulence and facilitate dissolution.

A reaction apparatus, comprising: a reaction kettle (1); a circulation loop, comprising a circulation pipeline (2) and a circulator pump (4) provided on the circulation pipeline (2), a discharging end of the circulator pump (4) being communicated with the top of the reaction kettle (1) by means of a circulation valve (3) and a charging end of the circulator pump (4) being communicated with the bottom of the reaction kettle (1) by means of a block valve (9); a feeding loop, comprising a feeding pipeline (7) and a bypass pipeline (5), the feeding pipeline (7) being provided between the block valve (9) and the circulator pump (4) and being communicated with the circulation pipeline (2), the bypass pipeline (5) being provided with a control valve (6), and one end of the bypass pipeline (5) being communicated with the discharging end of the circulator pump (3) and the other end thereof being communicated with the bottom of the reaction kettle (1); and a discharging loop, comprising a discharging pipeline (10) provided between the circulator pump (4) and the circulation valve (3) and communicated with the circulation pipeline (2), the discharging pipeline (10) being provided with a discharging valve (11).

A fluid handling apparatus for ejecting fluid into a tank and draining fluid from the tank comprises: a fluid duct for draining/supplying fluid from/to the tank, the fluid duct configured for fluid communication with a tank opening at a tank bottom; a fluid inlet pipe for supplying fluid to the tank, the fluid inlet pipe extending at least partly through the fluid duct and configured to extend through the tank opening into the tank; a rotary fluid ejection device in fluid communication with the fluid inlet pipe; and a rotary drive shaft extending at least partly inside the fluid inlet pipe, the rotary drive shaft being rotatably connected to the rotary fluid ejection device. Also disclosed is a fluid tank system comprising a tank and a fluid handling apparatus, and a method for mixing beer or wort with solid hops material in a tank by a fluid handling apparatus.

A piping manifold that combines multiple solids fluidizers with a common motive fluid connection and a common slurry discharge connection. The manifold utilizes flexible pipe materials to connect the individual fluidizer feed and discharge connections to a distribution and a collection hub that are combined into a single structure with a common dividing plate between the distribution and collection chambers. An adjustable support structure that allows adjustable positioning of the individual fluidizers without customized design, manufacturing or modification of the manifold.

A piping manifold that combines multiple solids fluidizers with a common motive fluid connection and a common slurry discharge connection. The manifold utilizes flexible pipe materials to connect the individual fluidizer feed and discharge connections to a distribution and a collection hub that are combined into a single structure with a common dividing plate between the distribution and collection chambers. An adjustable support structure that allows adjustable positioning of the individual fluidizers without customized design, manufacturing or modification of the manifold.

The present invention provides a fine bubble generating apparatus capable of generating fine bubbles efficiently. The present invention includes a fluid flow passage that includes a narrow portion in at least a part thereof, a heating part capable of heating a liquid flowing through the fluid flow passage, and a controlling unit that controls the heating part. The controlling unit controls the heating part to generate film boiling in the liquid to generate ultrafine bubbles.