Evaluation of thickening and dewatering characteristics of SRC-I wastewater treatment sludges. Final technical report

Technical Report · Tue May 01 04:00:00 EDT 1984

DOI:https://doi.org/10.2172/6844656· OSTI ID:6844656

The SRC-I Demonstration Plant in Newman, Kentucky, will generate several different sludges as a result of providing extensive wastewater treatment. Because construction of this plant has been postponed indefinitely, there has been an opportunity to generate additional data pertinent to waste treatment. Accordingly, this report presents the results of a study on the thickening and dewatering characteristics of several of the wastewater treatment sludges. The study included: evaluation of chemical conditioning agents; aerobic digestion of biological sludges; gravity thickening; and the relative effectiveness of dewatering by centrifuge, vacuum filter, belt filter, and pressure filter. Sludges were tested individually and in combination. The results indicated that the biological sludge could be best dewatered by pressure filtration. The chemical sludges should be combined prior to dewatering, which should be provided by a belt filter. The tar acid sludge will be kept separate, due to its low pH, and ultimate disposal will be by incineration. The tar acid sludge was more concentrated than had been expected. As a result, thickening, rather than centrifuging, is the recommended treatment for this sludge. All sludges were tested for leachate toxicity by the extraction procedure method. The results were negative, indicating the sludges are non-hazardous in heavy metal concentrations, according to RCRA classification. The test results have identified design changes for the proposed wastewater treatment facilities.

• Research Organization: Catalytic, Inc., Philadelphia, PA (USA)
• DOE Contract Number: AC05-78OR03054
• OSTI ID: 6844656
• Report Number(s): DOE/OR/03054-101; ON: DE84013560
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AEROBIC DIGESTION
BIOREACTORS
CENTRIFUGATION
COAL LIQUEFACTION
COMPARATIVE EVALUATIONS
DATA
DEMONSTRATION PLANTS
DIAGRAMS
DIGESTION
DISPERSIONS
DISSOLUTION
EXPERIMENTAL DATA
FILTERS
FILTRATION
FLOWSHEETS
HYDROGEN COMPOUNDS
INFORMATION
LEACHATES
LEACHING
LIQUEFACTION
LIQUID WASTES
MANAGEMENT
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PROCESSING
RECOMMENDATIONS
REMOVAL
SANITARY LANDFILLS
SEPARATION PROCESSES
SLUDGES
SOLUTIONS
SRC PROCESS
THERMOCHEMICAL PROCESSES
TOXICITY
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER REMOVAL
WATER TREATMENT