Conversion to full forced oxidation solves scrubber problems, produces gypsum

Journal Article · Fri Nov 01 00:00:00 EST 1985 · Electr. Light Power; (United States)

OSTI ID:6469665

A Michigan utility is negotiating the first long-term contract in the utility industry for the sale of scrubber-produced gypsum to a wallboard manufacturer. The Grand Haven utility produces commercial-grade gypsum which has passed trial tests at a Michigan wallboard plant. A commercial contract to sell gypsum has proved elusive even though forced oxidation of scrubber effluent to gypsum is not new. The problem is finding the right match between a high-purity calcium sulfate and a nearby facility that buys gypsum. The Grand Haven unit burns high-sulfur Indiana coal, and has a wet lime scrubber designed to remove 90% of the sulfur dioxide from the flue gas with high-calcium lime. There are two 100% capacity scrubber modules with forced oxidation in the spent slurry. The product is so pure that the wallboard company uses it to improve the natural product. 2 figures, 1 table.

• OSTI ID: 6469665
• Journal Information: Electr. Light Power; (United States), Vol. 63:11
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
FOSSIL-FUEL POWER PLANTS
SCRUBBERS
GYPSUM
MARKET
MICHIGAN
WASTE PRODUCT UTILIZATION
BUILDING MATERIALS
CALCIUM SULFATES
CONTRACTS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
EQUIPMENT
FEDERAL REGION V
MATERIALS
MINERALS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
USA
320603* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Public Utilities- (1980-)
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management