Shale-oil-wastewater treatment by evaporation

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5299053

Wakamiya, W.

Experimental studies were performed to assess the feasibility of using evaporation to treat oil shale retort water. Retort wastewaters from an in situ shale oil site near Vernal, Utah, were used in this study. This wastewater has a chemical oxygen demand (COD) of 7000 mg/L, total organic carbon (TOC) of 2000 mg/L, and ammonia concentrations of 1600 mg/L. Data for this study were collected from a bench-model evaporator with a 95 L/day capacity. Preliminary results show that reductions of 90% in COD, 89% in TOC, and 97% in ammonia were possible. Preliminary tests indicated that a concentration factor of 20 is optimum for operating at a desirable boiling point rise and suspended solids level in the evaporator sump. At a concentration factor of 20, the concentrated volume requiring disposal would be only 5% of the original water volume, so disposal costs would decrease proportionally.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5299053
• Report Number(s): PNL-SA-8270; CONF-801104-17; ON: DE82007170
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401 -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040900* -- Oil Shales & Tar Sands-- Waste management
AMMONIA
BENCH-SCALE EXPERIMENTS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL OXYGEN DEMAND
CHEMICAL REACTIONS
COST
DATA
DECOMPOSITION
DESIGN
DIAGRAMS
ENERGY SOURCES
EVAPORATION
EVAPORATORS
EXPERIMENTAL DATA
FEDERAL REGION VIII
FINANCIAL DATA
FLOWSHEETS
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
IN-SITU RETORTING
INFORMATION
LIQUID WASTES
MATERIALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
NUMERICAL DATA
OIL SHALES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PROCESSING
RETORTING
USA
UTAH
WASTE WATER
WASTES
WATER
WATER TREATMENT