Abstract: Provided is a sample analysis apparatus including: a syringe pump; a channel switch valve; a mixing container; a detection unit configured to detect a concentration of a specified substance contained in a sample solution; and a control unit configured to control the syringe pump and the channel switch valve. The channel switch valve includes a sample port, a reagent port, and a detection port connected to a detection pipe on which the detection unit is arranged. The control unit controls the syringe pump and the channel switch valve to draw the reagent solution from the reagent pipe to the mixing container, draw the sample solution from the sample pipe to the mixing container, draw the reagent solution from the reagent pipe to the mixing container, and supply a mixture solution containing the sample solution and the reagent solution from the mixing container to the detection unit.

Abstract: A surface treatment apparatus includes a treatment vessel including a treatment space in which a metal component is disposed, a spray nozzle that supplies mist of a non-chromate conversion treatment liquid to the treatment space, and a circulation device that collects the non-chromate conversion treatment liquid from the treatment space and supplies the non-chromate conversion treatment liquid to the spray nozzle.

Abstract: Provided is a concentration monitoring system which allows continuous concentration monitoring of a processing tank. The concentration monitoring system is provided with a first cycle in which a sample of a processing liquid to which a chemical has been added is taken from a processing tank in which the processing liquid is stored and supplied to a concentration meter which measures the concentration of the chemical, a second cycle in which a chemical solution having a known concentration of the chemical is supplied to the concentration meter, and a control device which controls the first cycle to evaluate the concentration of the chemical in the processing tank on the basis of the concentration of the sample measured by the concentration meter and controls the second cycle to evaluate the precision of the concentration meter on the basis of the concentration of the chemical solution measured by the concentration meter.

Abstract: A system for monitoring the alkalinity of a treatment liquid in a treatment tank includes a reaction tank; an indicator burette which drops an indicator into the reaction tank; a reagent burette which drops an acidic reagent into the reaction tank; a probe-type absorptiometer to be inserted into the reaction tank; a measuring device which analyzes the transmittance of a solution detected by the absorptiometer to calculate the alkalinity; a first system that collects the treatment liquid from the treatment tank for storing and supplies the treatment liquid to the reaction tank; a control device which controls the operation of the first system so as to supply the treatment liquid to the reaction tank, outputs a completion signal to the measuring device, and controls a discharge system so as to discharge the treatment liquid in the reaction tank, when the calculation of alkalinity by the measuring device is completed.

Abstract: The pure water manufacturing management system includes a pure water manufacturing device; an analysis device that inspects water quality; a first valve provided to first piping connected to the outlet side of the manufacturing device, the first valve controlling the amount of pure water supplied to a storage tank; second piping that branches from the first piping and is connected to the analysis device; and a control device, the control device controlling the analysis device during supply of the pure water to the storage tank, repeatedly performing water quality inspection of the pure water flowing in through the second piping, opening the first valve when, as a result of the water quality inspection, the water quality of the pure water satisfies a prescribed standard, and closing the first valve when the water quality of the pure water does not satisfy the prescribed standard.

Abstract: In an acidic treatment liquid processing apparatus, a space between a first electrode and a second electrode spaced from each other is separated by a first diaphragm permeable and a second diaphragm into a first chamber, a second chamber, and a third chamber. While the first chamber is fed with an acidic treatment liquid containing a dichromate ion and a metal cation, the second chamber is fed with a first acid aqueous solution, and the third chamber is fed with a second acid aqueous solution, a voltage is applied using the first electrode as an anode and the second electrode as a cathode.

Abstract: An acidic treatment liquid processing apparatus includes: a tank having an interior space; a diaphragm permeable to a metal cation and separating the interior space of the tank into a first chamber and a second chamber; a first electrode disposed in the first chamber; a second electrode disposed in the second chamber; a power supply configured to apply a voltage while using the first electrode as an anode and the second electrode as a cathode; a first liquid passing part configured to pass an acidic treatment liquid containing a dichromate ion and a metal cation into the first chamber; and a second liquid passing part configured to pass an acid aqueous solution into the second chamber.

Abstract: A cleaning apparatus 200 is provided with: a treatment tank 10, which defines a treatment space 15 by the inner surfaces (11a, 11b) thereof and on the inner surfaces of which a water-repellent coating has been applied; a cleaning liquid supply device with nozzles 24a (cleaning liquid spray nozzles) for spraying, into the treatment space 15, a mist of a cleaning liquid CL for cleaning surface treatment processing liquid PL adhering to the surface of a metal part S and/or processing liquid PL adhering to the inner surface; and a drying device, which comprises an air compressor 23a and is for supplying drying air compressed by the air compressor 23a to the treatment space 15.

Abstract: A surface treatment apparatus includes a treatment vessel including a treatment space in which a metal component is disposed, a spray nozzle that supplies mist of a non-chromate conversion treatment liquid to the treatment space, and a circulation device that collects the non-chromate conversion treatment liquid from the treatment space and supplies the non-chromate conversion treatment liquid to the spray nozzle.