Evaluation of effects of phenol recovery on biooxidation and tertiary treatment of SRC-I wastewater. Final technical report
Addition of phenol recovery to the wastewater treatment scheme in the Baseline Design for the SRC-I Demonstration Plant was evaluated as a major post-Baseline effort. Phenol recovery affects many downstream processes, but this study was designed to assess primarily its effects on biooxidation and subsequent tertiary treatment. Two parallel treatment schemes were set up, one to treat dephenolated wastewaters and the other for processed nondephenolated wastewaters, a simulation of the Baseline Design. The study focused on comparisons of five areas: effluent quality; system stability; the need for continuous, high-dose powdered activated carbon (PAC) augmentation to the bioreactor; minimum bioreactor hydraulic residence time (HRT); and tertiary treatment requirements. The results show that phenol recovery improves the quality of the bioreactor effluent in terms of residual organics and color. With phenol recovery, PAC augmentation is not required; without phenol recovery, PAC is needed to produce a comparable effluent. Dephenolization also enhances the stability of biooxidation, and reduces the minimum HRT required. With tertiary treatment, both schemes can meet the effluent concentrations published in the SRC-I Final Envivornmental Impact Statement, as well as the anticipated effluent limits. However, phenol recovery does provide a wider safety margin and could eliminate the need for some of the tertiary treatment steps. Based solely on the technical merits observed in this study, phenol recovery is recommended. The final selection should, however, also consider economic tradeoffs and results of other studies such as toxicology testing of the effluents. 34 references, 30 figures and 26 tables.
- Research Organization:
- Catalytic, Inc., Philadelphia, PA (USA)
- DOE Contract Number:
- AC05-78OR03054
- OSTI ID:
- 6868808
- Report Number(s):
- DOE/OR/03054-49; ON: DE84013973
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BIOREACTORS
OPERATION
SRC PROCESS
WASTE WATER
CHEMICAL COMPOSITION
DEPHENOLIZATION
WATER TREATMENT
ACTIVATED CARBON
AMMONIA
BIOCHEMICAL OXYGEN DEMAND
BORON
CALCIUM
CHEMICAL OXYGEN DEMAND
CHLORIDES
COAL LIQUEFACTION
CYANIDES
DEMONSTRATION PLANTS
EXPERIMENTAL DATA
FLUORIDES
GAS CHROMATOGRAPHY
IRON
MAGNESIUM
MASS SPECTROSCOPY
NITRATES
NITRITES
OXIDATION
PESTICIDES
PHENOL
PHENOLS
PHOSPHATES
RECOVERY
SODIUM
SULFATES
SULFIDES
THIOCYANATES
VOLATILE MATTER
ADSORBENTS
ALKALI METALS
ALKALINE EARTH METALS
ANTITHYROID DRUGS
AROMATICS
CARBON
CARBONIC ACID DERIVATIVES
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
CHROMATOGRAPHY
DATA
DRUGS
ELEMENTS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HORMONE ANTAGONISTS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
LIQUEFACTION
LIQUID WASTES
MATTER
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
SEMIMETALS
SEPARATION PROCESSES
SPECTROSCOPY
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTES
WATER
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Lignite
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