The Conversion of Waste Scrubbing Liquor into Fertilizer,

Abstract

Used, unwanted scrubbing liquor consisting of an equimolar mixture of nitrate and nitrite dissolved in a highly alkaline solution (pH > 13) is now disposed of as a hazardous waste. However, this waste liquor can be converted into nitrate fertilizer by oxidizing the nitrite to nitrate with ozone and neutralizing the alkali with nitric acid to form a nitrate solution at pH 7. This report describes the chemical reactions, procedures, and equipment necessary for converting unwanted, partially depleted scrubbing liquor into nitrate fertilizer. It is concluded that the Hydrazine Waste Water Treatment System at Vandenberg Air Force Base can be used, with only slight modification, to both oxidize and neutralize waste liquor and thereby convert it to fertilizer.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1995
Accession Number
ADA307692

Entities

People

  • Karl Westberg

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Electric Discharges
  • Engineering
  • Fluid Mechanics
  • Generators
  • Heat Energy
  • Heat Exchangers
  • Heat Of Neutralization
  • Liquids
  • Materials
  • Mechanics
  • Nitrogen Oxides
  • Physics Laboratories
  • Space Systems
  • Standards

Readers

  • Agricultural Chemistry/Soil Science
  • Electrochemical Engineering/ Fuel Cell Technologies