rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Calcium salts and cationic organic polymers as amendments for remediation of drilling fluid affected soils
  name:
    name part: Kim, Jae Gon.
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1998
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xii, 120 leaves : illustrations ; 28 cm.
  abstract: Potential negative environmental effects of disposing waste drilling fluid (DF) on land are a concern due to the high content of salt and toxic metals such as chromium (Cr) and barium. Changes in physical and chemical properties of two Southern Coastal Plain sandy loam soils (Anahuac and Crowley) after the addition of finely ground hematite as an alternative DF weighting material for barite were determined. Also, the effects of amendments with calcium carbonate (CaCO3), gypsum, cationic organic polymers (494C and 587C produced by CYTEC Industries Co., Indianapolis, Indiana), and calcium phosphate (CaHP04) on the hydraulic conductivity (HC) and mobility of Cr of soil-DF mixtures were tested by column experiments in the laboratory. The oxidation of Cr (111) to Cr (VI) in soils was determined as a function of the addition of manganese oxide. Addition of hematite to 3 % increased the HC of soils but greater amounts reduced it. Hematite addition had not significant effect on aggregate stability and adsorption of zinc and phosphate. Addition of 3 % DF to soils changed them from being acidic and nonsaline to being saline (Anahuac) or to being saline-sodic (Crowley). Amendments of soil-DF mixtures with CaCO3, gypsum, and cationic organic polymers increased HC but decreased Cr mobility. The HC and Cr mobility of soil-DF mixtures were increased by treatment with CaHPO4' The oxidation of Cr (111) to Cr (VI) in soils increased with increasing content of Mn oxide. Crowley soil with higher content of Mn oxide and lower content of organic matter had greater oxidation capacity for Cr (111) than Anahuac soil. Results of this study indicate that amendments with CaCO3, gypsum, and cationic organic polymer for safe land farming of DF and reclamation DF-affected soils can be practiced. Application of phosphate fertilizer on DF-affected soils should be minimized to prevent the contamination of groundwater and surface water from Cr. Soils with high contents of organic matter and low conte…
  note: by Jae Gon Kim.
  note: Vita.
  note: "Major Subject: Soil Science".
  note: Issued also on microfiche from University Microfilms Inc.
  note: Ph. D. Texas A&M University 1998.
  note: Includes bibliographical references: pages 65-72.
  subject:
    topic: Major soil science
  identifier: 98-30940 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 990303
    record change date: 20190325093413.0
    record identifier: in00001475393