Oil sands process water treatment
Due to the modified Clarke caustic hot water extraction process, the oil sands exploitation in Canada has been generating enormous quantities of process water termed tailings water or oil sands process-affected water (OSPW). 3. Oil sands-produced water treatment by nanofiltration. An overview of published studies on oil sands-produced water treatment using NF membranes is presented in Table 1. Although NF membranes are widely applied in water softening, there are few records in the literature for their application in oil sands-produced water treatment. The Alberta government estimates that almost one trillion litres of oil sands process water was stored in tailings ponds in 2013. Multiple technologies and processes are under development to remediate oil sands process water and to reduce the industry’s tailings footprint. Canada’s oil sands industry uses large volumes of freshwater to extract bitumen from surface-mined ore. With oil production expected to increase 3-fold over the next decade, process water treatment has become a critical issue for oil sands operators, both in terms of sustaining bitumen recovery and protecting freshwater resources.
25 Mar 2019 The oil sands process water (OSPW) is recycled to facili. chemical analysis, and monitoring to support the release of treated oil sands water.
Oil Sands Water Treatment — we look at the effect of using water treatment on overall efficiency of oil sands operations The Extraction Process About 7 to 10 m 3 of water per m 3 of bitumen are needed in order to extract bitumen from mined oil sands. Using conventional decontamination methods on “oil sands process affected water” (OSPW), as it’s known, takes at least 20 years to get it clean. Using UV lamps and chlorine makes the process More particularly, a process for treating oil sands process water is provided, comprising: = removing free oil and grease from the oil sands process water; = reducing the total suspended solids (TSS) by subjecting the de-oiled process water to filtration using a membrane system; and = removing dissolved ions such as chloride ions Alberta's oil sands contain on average about 10% bitumen, 5% water and 85% solids. Most of the solids are coarse silica sand. Oil sands also contain fine solids and clays, typically in the range of 10-30% by weight. Bitumen is a heavy complex hydrocarbon, contained within the oil sands deposit. Process water treatment has become a critical issue for Canada’s oil sands industry. Continuous recycling of tailings pond water (TPW) has contributed to a decline in water quality that has consequences for bitumen recovery, water consumption, and reclamation efforts. Oil Sands Water Regulations. All new oil sands projects require producers to submit an Environmental Impact Assessment as part of the regulatory approvals process. These detailed studies require an assessment of cumulative environmental effects and plans to mitigate adverse effects. Extensive water studies are carried out as part of the process and operators must perform ongoing monitoring of surface and groundwater that may be impacted by operations. Water data is collected through various In adapting treatment technologies to the oil sands, operators will need to consider the fouling potential of bitumen and fine clays, the effect of process water alkalinity on treatment performance, and the biodegradability of toxic organic compounds.
23 Aug 2017 Removal of Naphthenic Acids and Treatment of Oil Sands Process Water (OSPW ). Authors: Hojatallah Seyedy Niasar, Hanning Li, Tirumala
6 Jun 2018 Natural remediation of process water in oil sands surface mining can take The project demonstrated treatment on oil sands water and met 12 Oct 2011 pubs.acs.org/est. Effectiveness of Ozonation Treatment in Eliminating Toxicity of Oil. Sands Process-Affected Water to Chironomus dilutus. 14 Jul 2015 David Bromley's flotation membrane system for treating oil sands process water saves 65% energy and could allow water to be recycled or In an oil sands mining operation, large amounts of water need to be added in order to produce a slurry that can be pumped to the central processing plant. Water conservation is therefore a critical component of any Bitumen Production facility. Oil sands mining facilities are fairly water intensive. Water treatment begins with the separation of free oil. This can be done either in a conventional rectangular oil/water separator or in a circular oil/water separator as manufactured by WesTech. Once the free oil has been removed, the effluent flows to a dissolved gas flotation (DGF) unit where the dispersed oil is floated to the top by means of dissolved gas bubbles. Both these units are gas tight to prevent the release of volatile organic compounds (VOC’s) and to preserve as much heat
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28 Feb 2017 Cherukupally is modifying the process to treat oil sands wastewater. Her idea is to pump the contaminated water through the sponges: due to Treatment of oil sands process-affected water (OSPW) using a membrane bioreactor with a submerged flat-sheet ceramic microfiltration membrane.
In adapting treatment technologies to the oil sands, opera- tors will need to consider the fouling potential of bitumen and fine clays, the effect of process water
24 Jan 2020 Mohamed Gamal El-Din, Ph.D., P. Eng. Professor and NSERC Senior Industrial Research Chair in Oil Sands Tailings Water Treatment pictured 9 Nov 2019 The industry-supported Water Treatment Discover Centre (WTDC) opened in Both mining and in situ oil sands operations are carefully managed to avoid Impact Assessment as part of the regulatory approvals process.
In adapting treatment technologies to the oil sands, operators will need to consider the fouling potential of bitumen and fine clays, the effect of process water Abstract: Process water treatment has become a critical issue for Canada's oil sands industry. Continuous recycling of tailings pond water (TPW) has contributed In adapting treatment technologies to the oil sands, opera- tors will need to consider the fouling potential of bitumen and fine clays, the effect of process water Publication Stages. Accepted Manuscript - Manuscripts that have been selected for publication. They have not been typeset and the text may change before final 15 Dec 2015 Oil Sands Water Treatment — we look at the effect of using water treatment on overall efficiency of oil sands operations. The Extraction Process. 29 Oct 2019 Our hope is that this incremental approach will gradually get us to a place where it's safe to return the oilsands treated process water back into