Demonstration projects of control technology for reducing lead (7439921) (Pb) exposures in industrial lead reprocessing operations (SIC-3411) and emission controls at a battery breaking operation at the General Battery Corporation (GBC) Pb smelter in Reading, Pennsylvania were evaluated. A mechanized drossing station at the Tonolli North American smelter in eastern Pennsylvania was also evaluated. The drosser used an exhaust ventilation system that kept all components under negative pressure. Airborne Pb concentrations were reduced from 220 to 160microg/m/sup 3/.
Industrial hygiene information collected during the initial startup and shakedown operation of the CAN DO gasifier at Humboldt, Pennsylvania is summarized. Information presented was collected during the four initial plant operating periods (February 24-March 21, 1981, June 8 to 12, 1981, December 21 to 23, 1981 and February 17 to 24, 1982) covering operation of all major gasifier systems including delivery of process gas to an industrial user. Employee exposures to selected work place stresses were evaluated. It was determined that carbon monoxide (CO) presented the greatest exposure potential for the workers. Plant operations and equipment performance were also evaluated during the startup periods. Specific suggestions that were provided to CAN DO during the starting period to reduce process gas emission are discussed and general recommendations for controlling employee exposures are presented.
Several control technologies surveys were conducted to assess the efficiency of techniques used to reduce exposures to lead (7439921) (Pb) in lead reprocessing operations (SIC-3341). An evaluation of the central vacuum system at the Tonolli North America facility in Nesquehoning, Pennsylvania and the General Battery Corporation (GBC) installations in Reading and Hamburg, Pennsylvania, was evaluated. Studies were made of the effectiveness of emission controls on the tuyere nozzles of the blast furnaces at the East Penn Manufacturing Company's Pb smelter in Lyon Station, Pennsylvania. An evaluation was made of pavement cleaning equipment and methods as a means of reducing Pb exposure at the Lyon Station smelter of the East Penn Manufacturing Company. All the techniques and methods were found to be effective in reducing Pb exposure.
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