Partitioning of metals in rotary-kiln incineration
Technical Report
·
OSTI ID:7259608
This research project investigated the fate of trace metals in rotary-kiln incineration with venturi- and packed tower-scrubber particulate- and acid gascontrol. A test plan was developed, using a factorial experimental design, to study the partitioning of metals among kiln ash, scrubber water, flue gas particulate, and flue-gas vapor. Synthetic waste formulations included the hazardous trace elements arsenic, lead, cadmium, chromium, and barium, as well as the non-hazardous trace elements copper, magnesium, bismuth and strontium, spiked into a clay absorbent material. The independent variables chosen for evaluation were chlorine content of the feed, kiln temperature, and afterburner temperature. Cadmium, lead, and bismuth appeared volatile over the range of kiln temperatures tested, while the other six metals displayed refractory properties. Of the three independent variables tested, feed chlorine content had the strongest effect on changes in metal partitioning across the tests; as chlorine content increased, metal volatilization appeared to increase, while scrubber efficiency for metals decreased.
- Research Organization:
- Environmental Protection Agency, Cincinnati, OH (USA). Risk Reduction Engineering Lab.
- OSTI ID:
- 7259608
- Report Number(s):
- PB-90-132812/XAB; EPA--600/D-89/208
- Country of Publication:
- United States
- Language:
- English
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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-)
AFTERBURNERS
AIR POLLUTION CONTROL
ASHES
CONTROL
DESIGN
ELEMENTS
EQUIPMENT
FLUE GAS
GASEOUS WASTES
HAZARDOUS MATERIALS
INCINERATORS
KILNS
MANAGEMENT
MATERIALS
METALS
PARTICLES
PARTICULATES
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RESIDUES
SCRUBBERS
SOLID WASTES
TRACE AMOUNTS
VOLATILITY
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AFTERBURNERS
AIR POLLUTION CONTROL
ASHES
CONTROL
DESIGN
ELEMENTS
EQUIPMENT
FLUE GAS
GASEOUS WASTES
HAZARDOUS MATERIALS
INCINERATORS
KILNS
MANAGEMENT
MATERIALS
METALS
PARTICLES
PARTICULATES
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RESIDUES
SCRUBBERS
SOLID WASTES
TRACE AMOUNTS
VOLATILITY
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES