Chemical Engineering Division environmental chemistry annual report, July 1975-June 1976

Technical Report · Thu Jan 01 04:00:00 EST 1976

OSTI ID:5987606

Cunningham, P T; Kumar, R; Holt, B D; Hubble, B R; Johnson, S A; Nielsen, E; Siegel, S; Tani, B; Cafasso, F A; Burris, L

The chemistry of airborne particulate matter is being investigated by means of laboratory and field studies. Experiments were conducted using the flow reactor to identify the reaction conditions under which detectable amounts of sulfate particles could be formed from gaseous sulfur dioxide. A procedure was developed for the analysis of acidic and neutral ammonium sulfates in filter-collected samples of atmospheric particulate matter. The infrared spectroscopic method of analysis was made quantitative for sulfates, nitrates, and the ammonium ion. Field samples of atmospheric aerosols were collected at various sites. The size-classified collection procedure developed at Argonne was compared with the dichotomous high-volume filter sampling procedure; the results obtained with the two procedures were consistent. General agreement was observed between the infrared spectroscopic technique and two different light-scattering techniques for the detection and measurement of acidic and neutral ammonium sulfates in atmospheric particulate matter. Stable oxygen isotope ratios are being measured in laboratory samples of water, sulfur dioxide, and sulfate. The fundamental aspects of the chemistry involved in the cyclic use of dolomite for controlling sulfur dioxide emissions from fossil fuel combustion are being investigated, using thermal gravimetric, optical and electron microscopic, and X-ray diffraction methods.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5987606
• Report Number(s): ANL-76-107; ON: DE83014525
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
ATMOSPHERIC CHEMISTRY
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMISTRY
CONTROL
DOLOMITE
ISOTOPE RATIO
ISOTOPES
KINETICS
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
OXIDES
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PARTICLES
PARTICULATES
POLLUTION CONTROL
REACTION KINETICS
RESEARCH PROGRAMS
SCRUBBING
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES