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Oil Sands Environmental Management Bibliography

The Cumulative Environmental Management Association (CEMA)partnered with the Oil Sands Research and Information Network (OSRIN) to create the new Oil Sands Environmental Management Bibliography, which includes documents relevant to the environmental management of oil sands development in Alberta. The majority of the documents focus on the mineable oil sands in the Athabasca deposit, though some documents relate to in-situ developments. This bibliography was last updated in November 2014.

The strategic value of upgrading at Suncor's oil sands plant

Authors Carrothers, S.
Year of Publication: 1993

Abstract:
The upgrader operated by Suncor's Oil Sands Group (OSG) is a key component of the company's value chain due to its ability to upgrade low value bitumen into high quality petroleum products. This ability is enhanced by the fact that the oil sands plant is an integrated process, with the upgrading facility located at the same site as the bitumen source. The value enhancement achieved across the upgrader is particularly great during periods of high heavy/light oil price spreads. These spreads are currently at high levels, and Suncor believes that this will continue for at least the medium term given domestic supply and environmental factors, with the exception of a local effect as the Bi-Provincial upgrader comes on line. The current inelasticity of the base demand for light, sweet crude will contribute to this effect. The upgrader's potential will also be exploited as part of OSG's strategic plan to significantly expand its product slate. Currently, 94% of the plant's production is a generic light, sweet, resid-free synthetic crude. The upgrader is capable, however, of producing a wide variety of premium products which can be customized to meet the needs of specific customers. Marketing these products will enhance the company's profitability and allow it to better serve its new and existing customers. 5 figs

The symbiosis between Frankia alni and alder shrubs results in a tolerance of the environmental stress associated with tailings from the Canadian oil sands industry

Authors Mallet, P. L., & Roy S.
Year of Publication: 2014

Abstract:
Alders are well recognized for their ability to colonize the harsh environments created by either natural processes or human activity. They establish symbiosis with the actinomycete Frankia alni which supplies 70 to 100 % of the plant’s nitrogen requirements. An important challenge facing the oil sands industry in Alberta, Canada, is management of the toxicity of Tailing Sands (TS) that are alkaline, saline and contain Naphthenic Acids (NA).In order to begin to understand how alders, Frankia alni and their symbiosis perform and adapt to these challenging environmental conditions, the tolerance of the microsymbiont (Frankia alni), the host plants (alders) and their symbiosis to speci c compounds found in TS was studied. In addition, the metabolic response of Frankia alni ACN14a to the presence of NA was characterized. The Frankia alni strains tested tolerated both high pH and NA levels in addition to salts near or at the concentrations found in TS. Furthermore, actinorhizal symbiosis can establish itself under these conditions. NaCl was observed to exert the greatest stress on the establishment of symbiosis, decreasing the ef ciency of the actinorhizal symbiosis. Inoculation of the alder plants with Frankia alni induced a signi cant increase in aerial biomass allocation. Finally, intracellular proteins in Frankia alni alni ACN14a whose expression level were in uenced by naphthenic acids were identi ed. Together, these results demonstrate that actinorhizal alders show signi cant promise for use in the revegetation of lands affected by the mine tailings of the Canadian petroleum industry.

The Syncrude story: In our own words

Authors
Year of Publication: 1990

Citation:

The treatment of oil sands process-affected water by submerged ceramic membrane microfiltration system

Authors Dong, S.
Year of Publication: 2014

Abstract:
With the rapid expansion of the oil sands exploitation in Northern Alberta over the past decade, oil sands process-affected water (OSPW) management has become a significant issue. In this study, the use of a submerged microfiltration was proposed as a potential process for pretreating OSPW. Suspended solids in OSPW were removed by unmodified ceramic membrane and SiO2 and TiO2 modified ceramic membranes. The direct coagulation-flocculation (CF) and increasing feed water pH successfully reduced fouling of unmodified ceramic membrane. Further studies conducted on surface modified membranes demonstrated that membrane surface charge was the main factor to ceramic membrane fouling behavior. In addition, membrane surface roughness has also shown a significant impact on fouling accumulation. However, the removals of components in OSPW (with more than 93% removal of total suspended solids and less than 15% removal of organics) remained the same in all filtration runs regardless of CF, pH or membrane materials.

The use of aircraft measurements to determine transport dispersion and transformation rates of pollutants emitted from oil sands extraction plants in Alberta

Year of Publication: 1987

Abstract:
A field program study was conducted to determine the transport, dispersion, and transformation of sulphur and nitrogen oxides emitted from oil sands extraction plants in the Fort McMurray area. Measurements using the Intera/Alberta Research Council research aircraft were made under cold winter conditions during the months of March and December 1983 and warm summer conditions during June 1984. Sulphur dioxide emissions were detected as far as 90 km downwind from the source stack. Comparisons between the observed horizontal dispersion parameters and those of the Pasqui 11-Gifford stability classes show their rates of change with distance were similur, although observed values were slightly higher than predicted ones. The rate of transformation of so2 to SO2 was determined to be 0% to 2.81% h-l in the winter and 0% to 8.66% h-in the summer. Higher summer values are attributed to greater solar irradiance. Excess aerosol volume productions suggest that heterogeneous conversion may be appreciable under certain meteorological conditions and close to the emission source. The conversion rate of NO to NO2 varied considerably, hour to hour. Its range changed from 0.2% to 21.4% min The rate was positively correlated with turbulent mixing. The chemical reaction is controlled by the concentration of ozone entrained from the environment into the plume by turbulence. During cold winter conditions (below -25°C), ice crystals nucleated in the gaseous plume, grew to precipitation size. They were observed falling out of the plume to the earth's surface. This snow-out phenomenon was present only in the emission plume within about 10 km of the stack.

The use of nutrient addition as a wetland reclamation strategy in the oil sands region of Alberta, Canada

Year of Publication: 2008

Abstract:
Large volumes of oil sands process-material (OSPM) are generated as a result of mining and extraction of bitumen in Alberta's oil sands region. This paper addressed the challenge of using OSPM to create wetlands. These materials have the potential to strongly affect the rate and type of aquatic faunal and floral colonization. The quality of the substrate in wetlands may be poor due to physical or chemical characteristics. It is best to construct wetlands that promote optimal sedimentation because of the potential chronic effects of polycyclic aromatic compounds (PACs). Nutrient addition is one approach for optimal sedimentation that may quickly confine potentially toxic OSPM used as an initial substrate. This study examined the influence of nutrient addition on plankton and periphyton production. It also investigated the impact of maximum sedimentation on invertebrate and macrophyte colonization. Mesocosms were set up at three different reclamation sites along a gradient of naphthenic acid concentration in the water in order to examine the effects of nutrient addition. Naphthenic acids occur naturally in oil sands and are toxic to aquatic organisms. For each site, mesocosms were lined with mature fine tailings, reclamation soil and sand. Nutrients were added to the mesocosms to create oligotrophic, mesotrophic, and eutrophic conditions for each water treatment. Planktonic and periphytic production and sedimentation were then examined

The use of stable isotopes (13C/12C and 15N/14N) to trace exposure to oil sands processed material in the Alberta oil sands region

Year of Publication: 2009

Abstract:
Various oil sands reclamation strategies incorporate oil sands processed material (OSPM) such as mature fine tailings (MFT), engineered tailings (consolidated tailings, CT), and tailings pond water (TPW) into reclamation components that need to develop into viable aquatic ecosystems. The OSPM will contain elevated salinity and organics such as naphthenic acids (NA) and polycyclic aromatic compounds (PAC) that can be chronically toxic to aquatic organisms depending upon levels and age. Due to the complexity of the chemical mixtures, analysis of these compounds in exposed organisms can be challenging. In this study, the stable carbon and nitrogen isotope signatures of selected invertebrates from various types of oil sands reclamation sites were analyzed to determine whether stable isotopes can be used to trace the exposure of aquatic organisms to organic constituents of OSPM. In a series of experimental reclamation ponds of similar age and size, there were trends of 13C depletion and 15N enrichment for benthic invertebrates along a gradient of increased levels of MFT and/or TPW. A survey of 16 sites revealed high δ15N values for invertebrates in aquatic systems containing MFT and CT (gypsum-treated mixes of MFT and tailings sand), which was attributed to the presence of NH4 +, a process by-product in OSPM. Findings of this study indicate a potential for the use of stable nitrogen isotopes to define exposure of biota to OSPM during environmental effects monitoring programs both in surface waters and in cases where groundwater seepage containing oil sands processed water enters surface receiving environments in the region.

The use of stable isotopes to examine oil sands-derived polycyclic aromatic compounds and utilization by primary consumers

Year of Publication: 2008

Abstract:
The use of mature fine tailings (MFT) at oil sand reclamation sites leaves benthic invertebrates exposed to elevated levels of polycyclic aromatic compounds (PACs). In this laboratory study, stable isotope analyses were used as a tool to trace oil sand carbon (C) and nitrogen (N) sources in microbes and primary consumers. The objective was to better understand the importance of PAC derived carbon as an energy source in oil sands aquatic reclamation. Blackworms (Lumbriculus variegates) were raised for 6 weeks on either whole sediment from different oil sands reclamation wetlands containing elevated levels of PACs, or on microbes cultured on oil sands derived PAC extracts. Within 4 weeks of exposure, the nitrogen isotope signatures of L. variegates were found to be similar to that of the sediment, while the carbon isotope signatures of L. variegates were approximately 2 per cent 13C enriched relative to the sediment. It was suggested that tracing stable nitrogen isotopes may be a useful tool for determining exposure of aquatic organisms to oil sands processed-material through channels such as groundwater pollution

The use of stable isotopes to trace oil sands constituents

Year of Publication: 2002

Abstract:
A study was conducted to determine the biological effects of oil sands mining operations on aquatic ecosystems. The study focused on the Athabasca oil sand deposit, the largest of 4 deposits in northern Alberta. In particular, the study examined the cycling of oil sand constituents in Benthic invertebrates collected from test pits at Syncrude Canada Ltd.. The invertebrates were similar in size, but different in the quantity of process-affected water or mature fine tailings containing residual bitumen. Dragonflies and damselflies in particular, showed trends of depletion for the carbon 13 isotope and enrichment in nitrogen 15 isotope in pits where levels of process affected water was high. The depletion of carbon 13 isotope suggests that oil sand constituents assimilate into the benthic food chain. The greatest carbon 13 depletion, which was approximately 27 per cent, was found to be in test pits with high turbidity. This implies that oil sands constituents degrade microbially instead of by photosynthetic production. All benthic invertebrate group demonstrated an incremental enrichment in nitrogen 15 isotope from the control pit to the pit with greatest levels of mature fine tailings

The valuation of the Alberta oil sands

Year of Publication: 2008

Abstract:
The Alberta oil sands reserves represent a very valuable energy resource for Canadians. In 2007, Statistics Canada valued the oil sands at $342.1 billion, or 5 per cent Canada‟s total tangible wealth of $6.9 trillion. Given the oil sands‟ importance, it is essential to value them appropriately. In this report, we critically review the methods used by Statistics Canada in their valuation of the Alberta oil sands. We find that the official Statistics Canada estimates of the reserves (22.0 billion barrels) of Alberta‟s oil sands are very small compared to those obtained using more appropriate definitions, which results in an underestimation of the true value of the oil sands. Moreover, the failure to take into account the projected growth of the industry significantly magnifies this underestimation. We provide new estimates of the present value of oil sands reserves based on a set of alternative assumptions that are, we argue, more appropriate than those used by Statistic Canada. We find that the use of more reasonable measures of the total oil sands reserves (172.7 billion barrels), extraction rate (a linear increase from 482 million barrels per year in 2007 to 1,350 million barrels in 2015, and constant thereafter) and price ($70 per barrel, 2007 CAD) increases the estimated present value of the oil sands to $1,482.7 billion (2007 CAD), 4.3 times larger than the official estimate of $342.1 billion. Using our preferred estimate, Canada‟s total tangible wealth increases by $1.1 trillion (17 per cent), and reaches $8.0 trillion with oil sands now accounting for 18 per cent of Canada‟s tangible wealth. The importance of these revisions is also demonstrated by their impact on the per-capita wealth of Canadians, which increases from $209,359 to $243,950, or by $34,591 (or 17 per cent). Given the importance of the oil sands for Canada, Statistics Canada should undertake a review of its methodology. In light of the growing body of climatologic literature supporting an association between anthropogenic GHG emissions and global climate change, no analysis of the „true value‟ of the oil sands would be complete without an accounting of the social costs of the GHG emissions that arise from oil sands development. According to our baseline estimates, the oil sands impose a total social cost related to GHG emissions of $69.4 billion. In making this estimate, we assume that each barrel of oil sands output imposes a social cost of $2.25 (based on a cost of $30/tCO2-e and an intensity of 0.075 tCO2-e/bbl). Our preferred estimate of the net present value of oil sands wealth net of GHG cost is thus $1,413.3 billion, 4.1 times greater than the Statistics Canada estimate which does not account for any environmental costs. This report does not account for non-GHG related environmental and social costs. A comprehensive valuation of all environmental costs are needed to assess whether future benefits derived from oil sands development are outweighed by even larger environmental costs.

The vertical wind profile at Mildred Lake, Alberta

Authors
Year of Publication: 1977

Abstract:
A study of the winds of the Alberta Tar Sands region was performed by the MEP Company from 1974 to 1976. The objectives of this study were to establish the wind climatology of the region in order to predict the dispersion of emissions from the Syncrude plant. Detailed studies of the vertical, horizontal and diurnal variation of the wind velocity were performed. The raw data consisted of pibal and minisonde soundings taken at least twice daily during the period of the field experiment. In addition, three periods of intensive studies, one during the winter and two during the summer, were performed. The field results were transformed into vertical profiles of the temperature, potential temperature, and wind velocity. Two models of the vertical profile of the wind, a power law model and a geostrophic model, were evaluated. The power law model was generally the better model in that it produced smaller RMS errors more often than the geostrophic model. The geostrophic model was more successful during winter limited mixing. Several levels were tested as a reference height for the power law. The best height was found to be 183 metres. The exponent of the power law varied considerably with the stability, while the actual reference height used made relatively little difference, considering the entire data set. The diurnal variation of the wind was found to have typical characteristics. Surface winds had maximum values at the time of maximum heating and minimum values during mid-morning.

The waters that bind us: Transboundary implications of oil sands development

Year of Publication: 2009

Abstract:
Water sustains us and provides us with life. While many of us take water for granted, the health of water resources and surrounding ecosystems is a primary concern for people living downstream of oil sands development in northeastern Alberta. The oil sands industry uses large quantities of water and produces large amounts of toxic waste, both of which have an impact on the ecosystem and could, by association, impact people’s health, traditional subsistence activities and ways of life. Residents of northeastern Alberta are becoming increasingly politically active in an effort to protect the region’s water resources. A number of legal challenges have been issued against the provincial and federal governments for mismanagement of oil sands development and for infringing on treaty rights, culture and human health. Downstream in the Northwest Territories, there is also concern about the long-term impacts of oil sands development on water resources. Residents want effective and strong water management standards put in place now, so that the region can avoid the water problems occurring in northeastern Alberta.

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