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72073results about How to "Avoid pollution" patented technology

Industrial Wastewater Microwave Electrodeless UV Photocatalysis-Double Membrane Separation Coupling Treatment Device

The present invention is an industrial waste water microwave electrodeless ultraviolet photocatalysis-dual membrane separation coupling treatment device, the device mainly consists of a reactor (1), a membrane separation system (2), a microwave electrodeless ultraviolet light source system (4), an aeration system, and an ozone tail gas decomposition device (7) connected to the reactor, and an inlet and outlet water system, wherein: the upper and lower parts of the reactor are respectively the reaction zone and the aeration zone, which are separated by a water distribution plate (5); the membrane separation system The microwave electrodeless ultraviolet light source system is located in the reaction zone and is separated by a corrugated partition (3); the aeration system is composed of a microporous aeration head (6) and a blower (8), and the microporous aeration head is located in the aeration At the bottom of the zone, the blower sends air to the aeration zone through the air duct. The invention has the characteristics of high reaction rate, complete degradation of organic matter, long-term operation and the like, and has strong operability and high safety. It is suitable for the treatment of refractory organic industrial wastewater, and it is also suitable for sterilization and disinfection in the field of water supply.

Board processing apparatus and method of fabricating semiconductor apparatus

A board processing apparatus and a method of fabricating a semiconductor apparatus for reducing a pressure difference between a preparing chamber and a processing chamber and restraining a rapid flow of a gas caused by the pressure difference to thereby prevent a board from being contaminated by a particle are disclosed.

Surface electromyographic electrode assembly

An electrode assembly for use on a surface of biological tissue to measure bio-electric signals including an electrode apparatus having an electrode device adapted to directly contact the surface of the biological tissue. The electrode apparatus receives and transmits bio-electric signals measured across the biological tissue having a first voltage and a minute first current. A signal transmission line is included having a signal transmission conductor electrically coupled at one portion to the electrode device for transmission of the bio-electric signals. The transmission includes a second conductor electrically coupled to the amplifier apparatus and arranged to substantially shield the transmission conductor from ambient electric fields generated from sources external to the transmission line. A high impedance amplifier device is included having a signal input and a signal output. The signal input is electrically coupled to another portion of the signal transmission conductor for receipt of the transmitted bio-electric signals. The signal output is electrically coupled to the shield conductor, in a feedback loop, for receipt of at least a portion of the transmitted bio-electric signals, such that the voltage of the signals at the signal input of the high impedance amplifier device is maintained substantially equal to the voltage of the signals output from the signal output thereof.
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