Show Old Principle Used In Air Pollution Some years before this Greek philosopher recorded that proved to be one of the principal weapons fighting air BUT TO get back to Legend has it that while playing with some stones called he noted the stones attracted lint and other light objects after being Later the stones became known as And generations of school children have been shown the same experiment by rubbing a piece of glass rod with silk thereby making the rod capable of picking up light objects because of static electricity induced in the glass UTAH Power Light and other utilities are putting this basic principle to use never contemplated by the ancient One of the knottiest challenges for any industry that burns coal is to effectively trap unburned particles that leave a plant's furnace and otherwise go up the stack and into The solution came by application of Thales observation over 2500 years an electrostatic THIS DEVICE based on observation is a hutie steel box that weighs upwards of tons and stands upwards of 80 Teet The first one at Huntington Plant will cost Utah Power Light has installed precipitators at most of its units since the utility is spending millions of dollars to upgrade the existing electrostatic precipitators and ordering new precipitators at its Carbon and Naughton ELECTROSTATIC precipitators work on the principle that opposites attract and operate so efficiently that some 99 percent of particulate matter entering the device can be removed from the gases before they reach the The first precipitators built in the late teens and early were able to capture close to 80 percent of the particulate But continued research and development has increased their EVIDENCE OF electrostatic precipitators efficiency is pointed up by two coal-burning units of Gadsby Plant located in west Salt Lake The utility installed precipitators in the two coal-burning units beginning with operation of second unit in and the plant has essentially clear stacks without visible The ordered precipitators for Carbon and working in tandem with the mechanical precipitators already installed on four units of these are designed to remove 98 percent of particulate matter from the AND AT UP-Ls initial unit of the Huntington now under construction and scheduled for operation in an electrostatic precipitator designed for percent particulate removal will be installed and provide an essentially clear A precipitator's components include wires of electrodes carrying high-voltage direct current and collector plates having a positive When voltage is an electrostatic field is As combustion products and solid enter the field from the power plant the solid particles are given a negative charge by the electrostatic action of the THE negatively charged particles are attracted to the positive collector The now free of virtually all of the pass to the The particles tend to form a mass as cover the collector The plates are and the mass of particles fall to a hopper |