Record Display for the EPA National Library Catalog


Main Title Charged droplet scrubbing of submicron particulate : by J.R. Melcher and K.S. Sachar.
Author Melcher, James R. ; Sachar., K. S.
Other Authors
Author Title of a Work
Sachar, K. S.
CORP Author Massachusetts Inst. of Tech., Cambridge. Dept. of Electrical Engineering.;National Environmental Research Center, Research Triangle Park, N.C. Control Systems Lab.
Publisher Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1974
Report Number EPA/650-2-74-075; EPA-68-02-0250
Stock Number PB-241 262
OCLC Number 09237844
Subjects Particles ; Drops ; Scrubber (Chemical technology) ; Air--Pollution ; Agglomeration ; Electric charge and distribution
Additional Subjects Charged particles ; Scrubbers ; Drops(Liquids) ; Precipitation ; Particle size ; Efficiency ; Mathematical models ; Electric discharges ; Air pollution ; Particles ; Aerosols ; Air pollution control ; Particulates ; Electrostatic precipitators ; Charging
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 650-2-74-075 Headquarters Library/Washington,DC 06/30/2014
ELBD ARCHIVE EPA 650-2-74-075 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-241 262 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xvii, 240 pages : illustrations ; 28 cm.
The report gives results of an investigation of the collection of charged submicron particles, through a sequence of interrelated experiments and theoretical models: by oppositely charged supermicron drops; by bicharged drops; and by drops charged to the same polarity as the particles. It provides experimentally verified laws of collection for a system with different effective drop and gas residence times. The report shows, experimentally and through theoretical models, that all three of the above configurations have the same collection characteristics. Charging of the drops in any of these cases: results in dramatically improved efficiency, compared to inertial scrubbers; and approaches the efficiency of high-efficiency electrostatic precipitators. Charged-drop scrubbers and precipitators have the operating cost capital investment profiles of wet scrubbers, and submicron particle removal efficiencies approaching those of high-efficiency electrostatic precipitators.
Prepared for Office of Research and Development, U.S. Environmental Protection Agency, Washington, D.C. under Contract no. 68-02-0250, ROAR no. 21ADL-003. Includes bibliographical references (pages 230-234). "EPA/650-2-74-075." "August 1974."