Assessment of ash-sluice-system operating problems. Final report

Technical Report · Fri Mar 01 04:00:00 EST 1985

OSTI ID:5946691

Owen, M L; Jones, A F

This report presents the results of a utility survey designed to determine the magnitude, geographical distribution, and economic penalties associated with water quality related operating problems in coal-fired power plants recycling ash sluice water. Utilities which recycle ash sluice water were identified from existing literature and data bases. The following information was requested from these utilities in a survey: (1) reasons for water recycle, (2) type and magnitude of operating problems due to water quality, (3) costs resulting from the operating problems, (4) types, costs, and savings of corrective actions, and (5) costs of ash sluice operating problems relative to the costs of operating problems incurred by other major plant water systems. Survey responses indicated that recycling ash sluice water is becoming more predominant due to environmental regulations and decreasing water availability. Decreased water quality resulting from water recycle has caused ash sluice system operating problems in all regions of the US. The problems occur mainly in the pipes, valves, and pumps, with scaling being the most prevalent problem. Ash sluice system operating problems were perceived by the utilities to be expensive relative to the operating problem costs incurred by other major plant water systems. 4 references, 4 figures, 12 tables.

• Research Organization: Radian Corp., Austin, TX (USA)
• OSTI ID: 5946691
• Report Number(s): EPRI-CS-3923; ON: TI85920579
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200200 -- Fossil-Fueled Power Plants-- Waste Management
ASHES
CHEMICAL REACTIONS
CORROSION
DATA
DISPERSIONS
ECONOMICS
ENVIRONMENTAL QUALITY
EXPERIMENTAL DATA
FOSSIL-FUEL POWER PLANTS
HYDROGEN COMPOUNDS
INFORMATION
LIQUID WASTES
MANAGEMENT
MARINE DISPOSAL
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
POWER PLANTS
RECYCLING
RESIDUES
SCALING
SLURRIES
SUSPENSIONS
THERMAL POWER PLANTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE WATER
WASTES
WATER
WATER QUALITY