Use of hazardous waste in cement kilns backed

Journal Article · Mon Jul 19 04:00:00 EDT 1993 · Chemical and Engineering News; (United States)

DOI:https://doi.org/10.1021/cen-v071n029.p036a· OSTI ID:6276868

Krieger, J

Cement kiln operators who are making use of hazardous waste as a partial substitute for fossil fuel now have a better engineering foundation for determining what is going on in the kilns and how to optimize their operations. A just-released study by a scientific advisory board of experts commissioned by the Cement Kiln Recycling Coalition (CKRC) in Washington, DC, has provided an in-depth look, at such operations and finds the practice to be a fundamentally sound' technology. Long residence times and high temperatures in cement kilns maximize the combustion efficiency for waste-derived fuels, according to the study report. The scientific advisory board notes that all organic compounds can be destroyed in a kiln at 99.9999% efficiency. Also, the behavior of metals in cement kilns can be readily measured, predicted, and controlled. Cement kilns are extremely efficient in reducing metals emissions.

• OSTI ID: 6276868
• Journal Information: Chemical and Engineering News; (United States), Journal Name: Chemical and Engineering News; (United States) Vol. 71:29; ISSN 0009-2347; ISSN CENEAR
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
BUILDING MATERIALS
CEMENTS
CHEMICAL REACTIONS
COMBUSTION
CONTROL
EFFICIENCY
ELEMENTS
FUELS
HAZARDOUS MATERIALS
INDUSTRIAL WASTES
KILNS
MATERIALS
METALS
OPERATION
ORGANIC COMPOUNDS
OXIDATION
POLLUTION CONTROL
RECYCLING
REFUSE DERIVED FUELS
TECHNOLOGY ASSESSMENT
THERMOCHEMICAL PROCESSES
WASTES