Summary of recent information on biofouling control at power plants. Final report

Technical Report · Mon Jun 01 04:00:00 EDT 1992

OSTI ID:7255620

Pinkney, A E

Control of fouling organisms at power plants requires large investments by utilities. This report provides an overview of power plant biofouling and control techniques, a discussion of research and technologies investigated nationally, and a description of studies conducted at Maryland power plants. The major biofouling control techniques currently under investigation are: (1) using sodium bromide and bromine chloride in place of and in addition to chlorine; (2) conducting chlorine minimization studies and targeted chlorination trials to use chlorine more effectively; (3) using mechanical cleaning as an alternative method of controlling fouling; and (4) applying non-toxic coatings to intake structures. An important issue is the increased use of bromine and molluscicides at power plants and the establishment of discharge limits. Chlorine minimization studies are in progress or have been completed recently at several Maryland power plants but results are not yet available. Targeted chlorination is a promising technique for reducing chlorine usage. At some plants, mechanical cleaning has controlled condenser tube fouling and is used in place of biocides. Several trials have demonstrated the effectiveness of non-toxic coatings for reducing fouling on intake structures; however, cost savings are not yet apparent.

• Research Organization: Versar, Inc., Columbia, MD (United States)
• OSTI ID: 7255620
• Report Number(s): PB-92-222470/XAB; PPRP--103; CNN: PR91-047-01
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200200* -- Fossil-Fueled Power Plants-- Waste Management
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL FOULING
BROMINE COMPOUNDS
CHEMICAL REACTIONS
CHLORINATION
CHLORINE
CLEANING
COATINGS
COMPLIANCE
CONTROL
COST
DEVELOPED COUNTRIES
ELEMENTS
FIELD TESTS
FOULING
HALOGEN COMPOUNDS
HALOGENATION
HALOGENS
INTAKE STRUCTURES
INVERTEBRATES
MARYLAND
MECHANICAL STRUCTURES
MINIMIZATION
MOLLUSCS
NONMETALS
NORTH AMERICA
PERFORMANCE TESTING
PESTICIDES
POLLUTION ABATEMENT
POWER PLANTS
PROTECTIVE COATINGS
TESTING
THERMAL POWER PLANTS
USA
WATER POLLUTION ABATEMENT