Zimpro's biophysical-treatment-system stress testing of the H-COAL wastewater

Technical Report · Wed Dec 01 04:00:00 EST 1982

OSTI ID:6503565

Churton, B M

As part of an overall environmental evaluation of the H-COAL liquefaction process, sour water treatability studies have been performed: H-COAL Sour and Stripped Water Characterization Study; Zimpro's Biophysical Treatability and Characterization Study on H-COAL Wastewater; Zimpro's Biophysical Treatment System Stress Testing of the H-COAL Wastewater; Zimpro's Biophysical Treatment and Wet Air Regeneration System Engineering Study for H-COAL Wastewater; Engineering Analysis of Reuse Concepts for Treated H-COAL Wastewater; and Evaluation of Reverse Osmosis Treatment of Treated H-COAL Wastewater. These studies indicate that H-COAL Sour Water can be successfully treated for reuse or for discharge to public waters. The PACT studies utilizing Powered Activated Carbon Treatment achieved the following results: Five-day Biochemical Oxygen Demand (BOD/sub 5/) removal > 98.8%; chemical Oxygen Demand (COD) removal 85 to 87%; Essentially complete nitrification; Phenolics removal greater than 99%; Priority Pollutants removal to levels below Environmental Protection Agency defined detection limits; PACT operated well using wet air regenerated carbon; and Carbon recovery of approx. 90% in the wet air regeneration step. The first step in the Zimpro studies was a bench scale study to evaluate the feasibility of biophysical treatment, demonstrate the nitrification step, estimate the expected effluent quality, obtain preliminary data on solids retention time, hydraulic detention time, carbon dosage, volatile solids production, biological oxygen requirements, and neutralization requirements. The second step was also a bench scale evaluation: Further develop and define information produced in the first step; evaluate effects of varying carbon dosages upon treatment performance; and perform stress test to evaluate the treatment system's response to anticipated upstream upset conditions. The results of this second Zimpro study are presented here.

• Research Organization: Ashland Synthetic Fuels, Inc., KY (USA)
• DOE Contract Number: AC05-76ET10143
• OSTI ID: 6503565
• Report Number(s): DOE/ET/10143-T35; ON: DE83006713
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010800* -- Coal
Lignite
& Peat-- Waste Management
ACTIVATED CARBON
ACTIVATED SLUDGE PROCESS
ADSORBENTS
AMMONIA
AROMATICS
BENCH-SCALE EXPERIMENTS
BIOCHEMICAL OXYGEN DEMAND
CARBON
CHALCOGENIDES
CHEMICAL OXYGEN DEMAND
CHROMATOGRAPHY
COAL LIQUEFACTION
DATA
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
H-COAL PROCESS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXY COMPOUNDS
INFORMATION
LIQUEFACTION
LIQUID WASTES
MANAGEMENT
MASS SPECTROSCOPY
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
NUTRIENTS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PHENOLS
PROCESSING
RECOVERY
REGENERATION
REMOVAL
SEPARATION PROCESSES
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
TESTING
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER
WATER TREATMENT