||Review of new source performance standards for phosphate fertilizer industry, revised /
||Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
|| U.S. Environmental Protection Agency, Office of Air, Noise, and Radiation, Office of Air Quality Planning and Standards,
Phosphates--United States. ;
Phosphatic fertilizers--United States. ;
Fertilizer industry--United States. ;
Air pollution control ;
Inorganic phosphates ;
Industrial wastes ;
Combustion products ;
Design criteria ;
Performance evaluation ;
New source performance standards ;
Fugitive emissions ;
Wet methods ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||83 pages : illustrations ; 28 cm
Since promulgation of new source performance standards (NSPS) for fluoride control in the phosphate fertilizer industry, in 1975, commercial applications of a few new systems that reduce air pollution from phosphate plants have been reported. These include scrubbing system modifications that reduce the size of ponds used to cool process water, and reduce pond fluoride emissions. Also, a proprietary new process produces a stable granular triple superphosphate (GTSP) directly. This process reduces or eliminates the emissions of fluorides and fugitive particulate during the curing, storage period. The new GTSP process also eliminates the scrubbing of certain process gas, thus reducing required cooling pond area and pond fluoride emissions. There is currently insufficient process experience and source test data for firm conclusions about fluoride control potential. The recommendation is therefore made not to develop NSPS revisions now, but to assess additional developments in this industry in four years, and then reconsider possible revision.
"November 1980." Includes bibliographical references. "EPA-450/3-79-038R." Microfiche.