The efficiency of water disinfection can be significantly increased by supplying the ozone in combination with oxygen to an inlet of a cavitation pump. The ozone and the oxygen are turned into ultra-fine bubbles via cavitation action within the pump, facilitating the dissolution of the oxygen and ozone within the water. The water mixed with the oxygen and the ozone is subsequently supplied to a line atomizer, where the dissolution of the ozone within the mixture is completed. The combined use of the cavitation pump and the line atomizer can lead to a substantially complete dissolution of the supplied ozone within water that needs to be disinfected, allowing to easily achieve the concentration of ozone necessary for water disinfection. Due to this efficiency, the system and method described are highly scalable and suitable for water purification at water purification plants of various sizes.

An improved system for providing a homogeneous polymer-sludge composition to dewatering equipment includes an input mechanism that is adapted to receive sludge from a first supply source, and polymer materials from a second supply source. The input mechanism functioning to perform an initial blending of the materials before discharging the same to a pump unit. The pump unit comprising a boundary layer viscous drag pump that functions to efficiently and simultaneously mix and pump the polymer/sludge material to dewatering equipment in a manner that does not shear the polymer or reduce the efficiency, as previously experienced with downstream mixing units.

The problem to be addressed by the present invention is to provide a cleaning apparatus capable of obtaining a cleaning liquid having a high degree of cleanliness. A cleaning apparatus 10 includes a dissolution tank 20 for dissolving a gas in a liquid, a transfer pump 30 for sending the liquid together with the gas into the dissolution tank 20, and a feed nozzle 40 for feeding the liquid stored in the dissolution tank 20 to a workpiece W. The transfer pump 30 is a positive displacement pump. Portions of the dissolution tank 20, the transfer pump 30, and the feed nozzle 40 that come into contact with the liquid are made of a fluororesin.

Cartridges for the isolation of a biological sample and downstream biological assays on the sample are provided, as are methods for using such cartridges. In one embodiment, a nucleic acid sample is isolated from a biological sample and the nucleic acid sample is amplified, for example by the polymerase chain reaction. The cartridges provided herein can also be used for the isolation of non-nucleic acid samples, for example proteins, and to perform downstream reactions on the proteins, for example, binding assays. Instruments for carrying out the downstream biological assays and for detecting the results of the assays are also provided.

A method is provided for producing fine-bubble water by resonance foaming and vacuum cavitation, and a device for manufacturing each of ultra-fine-bubble water of hydrogen gas having a reducing radical function, ultra-fine-bubble water of air and oxygen gas having an oxidizing radical function, ozone ultra-fine-bubble water having a sterilization function enabled by ozone, and fine-bubble water of nitrogen/carbon dioxide gas for increasing the ability to preserve the freshness of raw agricultural products, livestock products, and marine products.

A mixing unit includes a mixing body having mixing elements that are stacked in a stacking direction and that extend in an extending direction in which the extending direction is perpendicular to the stacking direction. The mixing elements have a plurality of through holes to form a flow path therein, and are arranged such that part or all of the through holes in one of the mixing elements communicate with through holes in the adjacent mixing elements to allow fluid to be passed in the extending direction in which the mixing elements extend. The mixing unit may be employed in an agitation impeller or an adhesive dispensing unit.

An improved system for providing a homogeneous polymer-sludge composition to dewatering equipment includes an input mechanism that is adapted to receive sludge from a first supply source, and polymer materials from a second supply source. The input mechanism functioning to perform an initial blending of the materials before discharging the same to a pump unit. The pump unit comprising a boundary layer viscous drag pump that functions to efficiently and simultaneously mix and pump the polymer/sludge material to dewatering equipment in a manner that does not shear the polymer or reduce the efficiency, as previously experienced with downstream mixing units.

The efficiency of water disinfection can be significantly increased by supplying the ozone in combination with oxygen to an inlet of a cavitation pump. The ozone and the oxygen are turned into ultra-fine bubbles via cavitation action within the pump, facilitating the dissolution of the oxygen and ozone within the water. The water mixed with the oxygen and the ozone is subsequently supplied to a line atomizer, where the dissolution of the ozone within the mixture is completed. The combined use of the cavitation pump and the line atomizer can lead to a substantially complete dissolution of the supplied ozone within water that needs to be disinfected, allowing to easily achieve the concentration of ozone necessary for water disinfection. Due to this efficiency, the system and method described are highly scalable and suitable for water purification at water purification plants of various sizes.

A method is provided for producing fine-bubble water by resonance foaming and vacuum cavitation, and a device for manufacturing each of ultra-fine-bubble water of hydrogen gas having a reducing radical function, ultra-fine-bubble water of air and oxygen gas having an oxidizing radical function, ozone ultra-fine-bubble water having a sterilization function enabled by ozone, and fine-bubble water of nitrogen/carbon dioxide gas for increasing the ability to preserve the freshness of raw agricultural products, livestock products, and marine products.

An improved system for providing a homogenous polymer-sludge composition to dewatering equipment includes an input mechanism that is adapted to receive sludge from a first supply source, and polymer materials from a second supply source. The input mechanism functioning to perform an initial blending of the materials before discharging the same to a pump unit. The pump unit comprising a boundary layer viscous drag pump that functions to efficiently and simultaneously mix and pump the polymer/sludge material to dewatering equipment in a manner that does not shear the polymer or reduce the efficiency, as previously experienced with downstream mixing units.