Solid-waste codisposal study. Final report, June 1986-December 1987

Technical Report · Tue Mar 01 04:00:00 EST 1988

OSTI ID:6986734

Manz, O E; Groenewold, G H

Gasification and associated combustion of lignite coal, as occurs at Beulah, North Dakota, results in solid and liquid wastes, some of which may be considered hazardous. Disposal of these wastes is of ongoing concern. Determining the potential to reduce the hazardous nature of certain waste liquids by blending them with other non-hazardous cementitious wastes is the objective of the report. Liquid waste incinerator blowdown (LWIBD) and multi-effect evaporator concentrate (MEEC), two of the liquid wastes produced at the gasification plant, as well as scrubber and bottom ash from the combustion plant, were used in the study. The study tested the leaching characteristics of a matrix of fabricated cylinders made up of various proportions of the three solid wastes plus tap water, MEEC, or LWIBD as the make-up liquid. These cylinders were cured for different times at different temperatures and then were subjected to leaching by the TCLP regulatory method and by a variation of the TCLP method that employed simulated groundwater. Physical tests, as well as comprehensive XRD, SEM, and chemical characterization of the starting materials and the fabricated products were also done. The study showed that codisposal is an effective means of reducing the degree of leaching from wastes.

• Research Organization: North Dakota Univ., Grand Forks, ND (USA). North Dakota Mining and Mineral Resources Research Inst.
• OSTI ID: 6986734
• Report Number(s): PB-90-171331/XAB
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010800* -- Coal
Lignite
& Peat-- Waste Management
014000 -- Coal
Lignite
& Peat-- Combustion
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
COAL
COAL GASIFICATION PLANTS
COMBUSTION
COMBUSTION PRODUCTS
DISPERSIONS
DISSOLUTION
DOCUMENT TYPES
ENERGY SOURCES
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
LEACHING
LIGNITE
LIQUID WASTES
MANAGEMENT
MATERIALS
MIXTURES
NORTH AMERICA
NORTH DAKOTA
OXIDATION
POLLUTION ABATEMENT
PROGRESS REPORT
SEPARATION PROCESSES
SOLID WASTES
THERMOCHEMICAL PROCESSES
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES