TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Components: The body is made of ceramics, ruby or sapphire. The body can also be made of silicon carbide sintering agent, i.e. a material for ceramics. The dielectric implant is made of ruby or sapphire. The inner walls of the passage slot contacting the operation fluid include dielectric layer sensitive to the cavitation emission. The dielectric material is asbestos. The passage slot of the dielectric implant makes THE pressure of the operation fluid passing through the passage slot sharply decrease by having an expansion unit where the cross sectional area is enlarged at an outlet side of the slot. The separator includes channel (51) where the operation fluid flows, magnetic bodies (52) and separation channels (53). The magnetic bodies supply a magnetic field to the flow of the operation fluid. The magnetic bodies are formed at the lateral sides of the channel such that a north pole of magnetic bodies and a south pole of other magnetic bodies face each other. The separation channels guide ions separated perpendicular to the magnetic field from the operation fluid based on an electric polarity of the ions into different paths. The collector includes enclosed tank containing input pipe (61), catalytic plate (62), membrane (63) and three discharging pipes (64-66). The input pipe supplies the operation fluid. The catalytic plate is made in zigzags. The catalytic plate contacts the operation fluid at a wide surface area region and allows gas generated at the surface of the contact area to rise. The membrane passes hydrogen gas generated at the catalytic plate. The membrane is in an upper part of the tank. The first discharging pipe is made at an upper side of the membrane and discharges the highly purified hydrogen gas passing through the membrane. The second discharging pipe is made at the bottom side of the membrane. The second discharging pipe discharges the lowly purified hydrogen gas that does not pass through the membrane. The third discharging pipe recollects water passing through the catalytic plate and sends the water back to the operation fluid supply unit. The collector includes two hydrogen tanks (71-72), and check valve (74). The first hydrogen tank stores highly purified hydrogen gas by connecting with the first discharging pipe. The second hydrogen tank stores lowly purified hydrogen gas by connecting with the second discharging pipe. The check valve prevents inverse flow of gas formed at each inlet side of the two hydrogen tanks. The catalytic plate is made of rhodium or palladium. The operation fluid is water. The operation fluid supply unit includes output pump pressurizing highly purified water at 5-7 MPa and supplies pressurized highly purified water as the operation fluid. The operation fluid supply unit also includes pulse generator exerting a pressure wave with frequency to flow the operation fluid by connecting to a rear end of the output pump.