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Title: Applications of gypsum and phosphogypsum

Abstract

Relatively pure gypsum (CaSO{sub 4}-2H{sub 2}O) is produced in large amounts world-wide by processing of phosphatic fertilizers and SO{sub 2} removal from coal-fired power plant gas streams. There are a number of potential beneficial uses of these materials in both industrial manufacturing, the construction industry, and in agriculture. By-product gypsums may be used in wallboard manufacture to replace mined gypsum, although the supply far exceeds demand for this use. Gypsum may also be used as an additive in cement formulation, and has shown promise as a sub-base material in road construction. In agriculture, the high Ca content is beneficial for a number of crops grown on acidic soils, and gypsum treatments improve the physical conditions of soils by enhancing flocculation of soil colloids. The agricultural market should expand as new experimental results show yield responses on various soils and crops. Environmental questions regarding radioactivity hazards in phosphogypum are still unresolved, however, and use of this material is pending EPA review.

Authors:
 [1]
  1. Univ. of Georgia, Athens, GA (United States)
Publication Date:
OSTI Identifier:
538998
Report Number(s):
CONF-960807-
TRN: 97:004029-0066
Resource Type:
Conference
Resource Relation:
Conference: 212. national meeting of the American Chemical Society (ACS), Orlando, FL (United States), 25-30 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of 212th ACS national meeting; PB: 1830 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; GYPSUM; WASTE PRODUCT UTILIZATION; COAL; COLLOIDS; CROPS; FERTILIZERS; MARKET; PROCESSING; SOILS

Citation Formats

Miller, W P. Applications of gypsum and phosphogypsum. United States: N. p., 1996. Web.
Miller, W P. Applications of gypsum and phosphogypsum. United States.
Miller, W P. 1996. "Applications of gypsum and phosphogypsum". United States.
@article{osti_538998,
title = {Applications of gypsum and phosphogypsum},
author = {Miller, W P},
abstractNote = {Relatively pure gypsum (CaSO{sub 4}-2H{sub 2}O) is produced in large amounts world-wide by processing of phosphatic fertilizers and SO{sub 2} removal from coal-fired power plant gas streams. There are a number of potential beneficial uses of these materials in both industrial manufacturing, the construction industry, and in agriculture. By-product gypsums may be used in wallboard manufacture to replace mined gypsum, although the supply far exceeds demand for this use. Gypsum may also be used as an additive in cement formulation, and has shown promise as a sub-base material in road construction. In agriculture, the high Ca content is beneficial for a number of crops grown on acidic soils, and gypsum treatments improve the physical conditions of soils by enhancing flocculation of soil colloids. The agricultural market should expand as new experimental results show yield responses on various soils and crops. Environmental questions regarding radioactivity hazards in phosphogypum are still unresolved, however, and use of this material is pending EPA review.},
doi = {},
url = {https://www.osti.gov/biblio/538998}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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