The Library of Congress >  Researchers >  Search Finding Aids  >  Herbert J. Hall papers, 1910-2003
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BOX 24-34 Recon Systems and Precipitator Technology, 1965-1973
The Recon Systems and Precipitator Technology series highlights Hall's career from 1969 to 1972 when he addressed air pollution control at both companies. Hall was vice president and a consultant at Recon Systems, a scientific and engineering consulting firm specializing in air, solid waste, and water pollution control problems and systems. He worked closely with Norman J. Weinstein, founder of the company, and this is reflected in the series. The bulk of the series comprises Hall's technical reports as a scientific consultant at Recon Systems on the topics of dust emission control, electrical discharges, electrostatic precipitators, fly ash precipitator designs, high-voltage power supplies, incinerator designs, pulser circuit, solid and liquid waste management, and sulfur dioxide (SO₂) and nitrogen oxide (NOₓ) removal. Hall notably prepared a comprehensive market investigation on desulfurizing plants in the United States for Steinkohlen-Elektrizität Aktiengesellschaft (STEAG) of Germany, and this work is included in the series. Hall's work for Precipitator Technology, an air pollution company run by Jacob Katz, is mainly reflected in the technical reports from 1972 to 1973. Later in their careers, Hall and Katz would collaborate and lecture throughout the United States on the engineering, maintenance, and operation of electrostatic precipitators, and related material can be found in the Writing and Lecture File series.
Material types include background data and calculations, blueprints, consulting agreements, correspondence, drawings, graphs, handwritten and typed technical reports, memoranda, notes, research material, and other supporting papers.
Arranged alphabetically by topic or type of material.
BOX 24 "1500 MA sets," 1965-1972
BOX 24 Chemical and Engineering News, 1969
BOX 24 Consulting agreement forms, circa 1969
BOX 24 Correspondence and memoranda, 1970
BOX 24 Drawings, 1969-1970
BOX 24 Market Investigation for System Bischoff Desulfurizing Plants in the U.S., prepared for Steinkohlen-Elektrizitat Aktiengesellschaft
BOX 24 Air Pollution Control Association Annual Meeting, St. Louis, Mo., 1970
BOX 25 Air Pollution Control Association Annual Meeting, St. Louis, Mo., 1970
BOX 25 Correspondence and background material, 1967-1970
(3 folders)
BOX 25 Federal and state legislation, 1967-1970
BOX 25 Interviews and notes on power plants regarding sulfur dioxide (SO₂) removal stack gases, 1968-1970
BOX 25 Scrubbers, 1967-1968
BOX 25 Stone and Webster/Ionics, process for sulfur dioxide (SO₂) removal and recovery, 1969-1970
BOX 25 Sulfur dioxide (SO₂) removal, 1967-1971
(3 folders)
BOX 26 Technology for gas cleaning, 1965-1969
BOX 26 Notes and action items, 1970-1971
BOX 26 Pollution control technical information, 1970-1971
BOX 26 Technical reports
BOX 26 1969
(4 folders)
BOX 26 1970
(2 folders)
BOX 27 1970
(9 folders)
BOX 28 1970
(7 folders)
BOX 29 1970
(6 folders)
BOX 29 1971
(3 folders)
BOX 30 1971
(7 folders)
BOX 31 1971
(2 folders)
BOX 31 1972
(6 folders)
BOX 32 1972
(7 folders)
BOX 33 1972
(7 folders)
BOX 34 1973
(4 folders)
BOX 34 Technical reports, list of Recon Systems reports from 1969 to 1972, circa 1972
BOX 34-162 H. J. Hall Associates, 1972-2001
The H. J. Hall Associates series chronicles Hall's activities as president of his own science consulting firm from 1972 until 2001 where he consulted on all phases and facets of electrostatic precipitation and air pollution control systems. With his broad and in-depth knowledge of electrostatic precipitators, Hall was able to work with clients in oil refineries, power generation, and cement, paper, and steel industries. This series comprises the bulk of the collection, and the technical reports make up the majority of the series. Hall's technical reports cover a range of topics including aerosol physics; ammonia (NH₃) conditioning; electrostatic precipitation application, design, maintenance, and operation; gas conditioning systems and gas flow dynamics; vendor bid analyses; high-voltage power supplies; mechanical collectors; rapping; scrubbers; stark opacity problems; and sulfur dioxide (SO₂) removal technology. The series includes final reports from 1983 to 2001 and working files containing background material and drafts of technical reports. Final reports from 1972 to 1982 are in the 2023 Addition.
Material types include administrative records, blueprints, brochures, calculations, charts, consulting agreements, correspondence, data, diagrams, drawings, handwritten and typed technical reports, lists, memoranda, newspaper clippings, notes, photographs, printed matter, research material, and other papers.
Arranged alphabetically by topic or type of material.
BOX 34 Bibliographies and book inventory, undated
BOX 34 Clients and invoices, 1979-2001
BOX 34 Corporate records
BOX 34 Minutes and bylaws, 1972-1993
(2 folders)
BOX 34 Stock certificates, undated
BOX 34 Correspondence, 1974, 1982, 1991
BOX 34 "New developments, miscellaneous data, and notes," 1990-2001
BOX 35 Technical reports and papers
BOX 35 Chronological and topical lists of reports, circa 1976-circa 1992
BOX 35 Final reports and papers, compilation
BOX 35 1983
(4 folders)
BOX 35 1984
(2 folders)
BOX 36 1984
(4 folders)
BOX 36 1985
(3 folders)
BOX 37 1985
(5 folders)
BOX 37 1986
BOX 38 1986
BOX 38 1987
(5 folders)
BOX 38 1988
BOX 39 1988
(3 folders)
BOX 39 1989
(2 folders)
BOX 39 1990
BOX 40 1990
(2 folders)
BOX 40 1991
(5 folders)
BOX 41 1992-1994
(7 folders)
BOX 42 1995-2001
(7 folders)
BOX 43 Working file
BOX 43 1972
BOX 43 1973
(6 folders)
BOX 44 1973
(8 folders)
BOX 45 1973
(7 folders)
BOX 46 1973
(7 folders)
BOX 47 1973
(5 folders)
BOX 47 1974
BOX 48 1974
(8 folders)
BOX 49 1974
(6 folders)
BOX 50 1974
(8 folders)
BOX 51 1974
(8 folders)
BOX 51 1975
BOX 52 1975
(6 folders)
BOX 53 1975
(7 folders)
BOX 54 1975
(7 folders)
BOX 55 1975
(7 folders)
BOX 56 1975
(6 folders)
BOX 57 1975
(7 folders)
BOX 58 1975
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