Accession Number : ADA307692
Title : The Conversion of Waste Scrubbing Liquor into Fertilizer,
Corporate Author : AEROSPACE CORP EL SEGUNDO CA
Personal Author(s) : Westberg, Karl
PDF Url : ADA307692
Report Date : 01 FEB 1995
Pagination or Media Count : 26
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.
Descriptors : *CONVERSION, *FERTILIZERS, SOLUTIONS(MIXTURES), NEUTRALIZATION, OXIDATION, CHEMICAL REACTIONS, AIR FORCE FACILITIES, HAZARDOUS WASTES, NITRIC ACID, OZONE, ALKALINITY, NITRATES, NITRITES.
Subject Categories : Inorganic Chemistry
Solid Wastes Pollution and Control
Distribution Statement : APPROVED FOR PUBLIC RELEASE