All Outputs (37)

Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. (2018)
Conference Proceeding
WUYEP, E., OLUYEMI, G., YATES, K. and AKISANYA, A. 2019. Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. In Kallel A., Erguler, Z.A., Cui, Z.-D., Karrech, A., Karakus, M., Kulatilake, P. and Shukla, S.K. (eds.) Recent advances in geo-environmental engineering, geomechanics and geotechnics, and geohazards: proceedings of the 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1), 12-15 November 2018, Hammamet, Tunisia. Advances in science, technology and innovation: IEREK interdisciplinary series for sustainable development. Cham: Springer [online], pages 183-185. Available from: https://doi.org/10.1007/978-3-030-01665-4_43

The effects of chemical interaction of a biocide with formation rocks on the rock geomechanical strength were examined. A combination of analytical tests (Scanning Electron Microscopy/Energy-Dispersive X-Ray Analysis-SEM/EDX, X-Ray Powder Diffraction... Read More about Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions..

Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. (2018)
Thesis
NWINEE, S.A. 2018. Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. Robert Gordon University, PhD thesis.

Environmental pollution from oilfield drilling waste poses potential hazards which can lead to ecological imbalance. The predominant pollutant from oilfield waste is petroleum hydrocarbons. Some effects of petroleum hydrocarbon contamination in soil... Read More about Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil..

The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. (2018)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2019. The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. Polymer degradation and stability [online], 159, pages 139-152. Available from: https://doi.org/10.1016/j.polymdegradstab.2018.11.004

The crystallinity and thermal degradation behaviours of Polyamide 6/Oil Based Mud Fillers (PA6/OBMFs) nanocomposites have been investigated using DSC and TGA. TGA indicates the onset decomposition temperature of D1/2 (half-decomposition) is 16º C hig... Read More about The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites..

Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. (2018)
Thesis
WUYEP, E.O. 2018. Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Sand failure may result in the production of formation sand at the same time the formation fluids are being produced. Sand failure occurs when the formation stress exceeds the strength of the formation, which is derived mainly from the natural materi... Read More about Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models..

Determination of sinapine in rapeseed pomace extract: its antioxidant and acetylcholinesterase inhibition properties. (2018)
Journal Article
YATES, K., POHL, F., BUSCH, M., MOZER, A., WATTERS, L., SHIRYAEV, A. and KONG THOO LIN, P. 2019. Determination of sinapine in rapeseed pomace extract: its antioxidant and acetylcholinesterase inhibition properties. Food chemistry [online], 276, pages 768-775. Available from: https://doi.org/10.1016/j.foodchem.2018.10.045

Sinapine is the main secondary metabolite present in rapeseed pomace (RSP) with its concentration being dependent on rapeseed processing, growing conditions, extraction parameters and the country of origin. Here we report, the concentration of sinapi... Read More about Determination of sinapine in rapeseed pomace extract: its antioxidant and acetylcholinesterase inhibition properties..

Multi-residue analysis of chiral and achiral trace organic contaminants in soil by accelerated solvent extraction and enantioselective liquid chromatography tandem-mass spectrometry. (2018)
Journal Article
PETRIE, B., MRAZOVA, J., KASPRZYK-HORDERN, B. and YATES, K. 2018. Multi-residue analysis of chiral and achiral trace organic contaminants in soil by accelerated solvent extraction and enantioselective liquid chromatography tandem-mass spectrometry. Journal of chromatography A [online], 1572, pages 62-71. Available from: https://doi.org/10.1016/j.chroma.2018.08.034

Reported here is the first analytical methodology for the enantiomeric determination of chiral trace organic contaminants (TOrCs) in soil. Direct enantioselective separations were achieved on a Chirobiotic V2 column operated in polar ionic mode. Init... Read More about Multi-residue analysis of chiral and achiral trace organic contaminants in soil by accelerated solvent extraction and enantioselective liquid chromatography tandem-mass spectrometry..

Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product. (2018)
Presentation / Conference
SIDDIQUE, S., YATES, K. and NJUGUNA, J. 2018. Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product. Presented at the 6th International conference on sustainable solid waste management (NAXOS 2018), 13-16 June 2018, Naxos, Greece. Athens: National Technical University of Athens [online], paper number 45. Available from: http://uest.ntua.gr/naxos2018/proceedings/pdf/45_NAXOS2018_Siddique_etal.pdf

Waste characterisation is an essential factor in designing sustainable waste management plan. However, waste composition profile is underestimated in oil and gas exploration and production (E&P) industries in the United Kingdom. A three years long in... Read More about Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product..

Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites. (2018)
Presentation / Conference
SIDDIQUE, S., SMITH, G.D., YATES, K. and NJUGUNA, J. 2018. Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites. Presented at the 4th International conference on structural nano composites (NANOSTRUC 2018), 23-24 May 2018, Berlin, Germany.

Novel low density polyethylene (LDPE)/Oil based mud fillers (OBMF) nanocomposites were manufactured by a melt compounding process. Fourier Transform Infrared (FTIR) Spectroscopy was used to characterise the structure of the nanocomposites. The result... Read More about Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites..

Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks. (2018)
Journal Article
WUYEP, E.O., OLUYEMI, G.F., YATES, K. and AKISANYA, A.R. 2018. Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks. Journal of petroleum science and engineering [online], 165, pages 347-357. Available from: https://doi.org/10.1016/j.petrol.2018.02.041

Sand failure may result in the production of formation sand at the same time the formation fluids are being produced. This work examines the effects of some commonly used oilfield chemicals, specifically, biocide, corrosion inhibitor and scale inhibi... Read More about Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks..

Oil based drilling fluid waste: an overview on environmentally persistent pollutants. (2017)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2016. Oil based drilling fluid waste: an overview on environmentally persistent pollutants. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012008. Available from: https://doi.org/10.1088/1757-899X/195/1/012008

Operational discharges of spent drilling fluid, produced water, and accumulated drill cuttings from oil and gas industry are a continuous point source of environmental pollution. To meet the strict environmental standard for waste disposal, oil and g... Read More about Oil based drilling fluid waste: an overview on environmentally persistent pollutants..

Multivariate analysis of Scotch whisky by total reflection X-ray fluorescence and chemometric methods: a potential tool in the identification of counterfeits. (2017)
Journal Article
SHAND, C.A., WENDLER, R., DAWSON, L., YATES, K. and STEPHENSON, H. 2017. Multivariate analysis of Scotch whisky by total reflection X-ray fluorescence and chemometric methods: a potential tool in the identification of counterfeits. Analytica chimica acta [online], 976, pages 14-24. Available from: https://doi.org/10.1016/j.aca.2017.04.041

Most methods used in the identification of counterfeit whisky have focused on the profiling of volatile organic congeners determined by gas chromatography. We tested the use of total reflection x-ray fluorescence (TXRF) for trace element analysis of... Read More about Multivariate analysis of Scotch whisky by total reflection X-ray fluorescence and chemometric methods: a potential tool in the identification of counterfeits..

Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. (2016)
Thesis
ADEGBOTOLU, U.V. 2016. Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. Robert Gordon University, PhD thesis.

Spent oil-based drilling fluid and cutting wastes are global liabilities due to their hazardous hydrocarbon content, which impacts negatively on flora, fauna, and global carbon footprint. The formulation of two demulsifiers to ensure chemically-enhan... Read More about Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites..

Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing. (2016)
Presentation / Conference
SIDDIQUE, S., YATES, K. and NJUGUNA, J. 2016. Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing. Presented at the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK.

The increase in thermal stability, flame retardancy, and mechanical properties of Polyamide 6 (PA6)/montmorillonite (MMT) nanocomposites open a new research window in respect to successful technical application of PA6/MMT nanocomposites on the indust... Read More about Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing..

Evaluation of spot and passive sampling for monitoring, flux estimation and risk assessment of pesticides within the constraints of a typical regulatory monitoring scheme. (2016)
Journal Article
ZHANG, Z., TROLDBORG, M., YATES, K., OSPREY, M., KERR, C., HALLETT, P.D., BAGGALEY, H., RHIND, S.M., DAWSON, J.J.C. and HOUGH, R.L. 2016. Evaluation of spot and passive sampling for monitoring, flux estimation and risk assessment of pesticides within the constraints of a typical regulatory monitoring scheme. Science of the total environment [online], 569-570, pages 1369-1379. Available from: https://doi.org/10.1016/j.scitotenv.2016.06.219

In many agricultural catchments of Europe and North America, pesticides occur at generally low concentrations with significant temporal variation. This poses several challenges for both monitoring and understanding ecological risks/impacts of these c... Read More about Evaluation of spot and passive sampling for monitoring, flux estimation and risk assessment of pesticides within the constraints of a typical regulatory monitoring scheme..

Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. (2014)
Journal Article
ADEGBOTOLU, U.V., NJUGUNA, J., POLLARD, P. and YATES, K. 2014. Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. IOP conference series: materials science and engineering [online], 64, Article 012023. Available from: https://doi.org/10.1088/1757-899X/64/1/012023

Due to the European Union (EU) waste frame work directive (WFD), legislations have been endorsed in EU member states such as UK for the Recycling of wastes with a vision to prevent and reduce landfilling of waste. Spent oil based drilling mud (drilli... Read More about Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste..

Bioavailability of organic contaminants in sediments. (2008)
Thesis
YATES, K. 2008. Bioavailability of organic contaminants in sediments. Robert Gordon University, PhD thesis.

The bioavailability of polycyclic aromatic hydrocarbons (PAHs) and chlorobiphenyls (CBs) in sediments is largely dependent on the freely dissolved concentration of these pollutants. However, measuring these is challenging, due to the low concentratio... Read More about Bioavailability of organic contaminants in sediments..

Passive sampling: partition coefficients for a silicone rubber reference phase. (2007)
Journal Article
YATES, K., DAVIES, I., WEBSTER, L., POLLARD, P., LAWTON, L. and MOFFAT, C. 2007. Passive sampling: partition coefficients for a silicone rubber reference phase. Journal of environmental monitoring [online], 9(10), pages 1116-1121. Available from: https://doi.org/10.1039/B706716J

Silicone rubber sheeting can be used as a passive sampling device for hydrophobic organic contaminants in the environment to determine the available concentrations in water and sediments. Reliable sampler-water partition coefficients are required to... Read More about Passive sampling: partition coefficients for a silicone rubber reference phase..