Author
Robert G. J. Edyvean
Bio: Robert G. J. Edyvean is an academic researcher from University of Sheffield. The author has contributed to research in topics: Corrosion & Fouling. The author has an hindex of 28, co-authored 77 publications receiving 2919 citations.
Topics: Corrosion, Fouling, Adsorption, Biosorption, Anaerobic digestion
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the influence of pH and coagulant dosages on the coagulation process was studied and conditions were optimised corresponding to the best removal of organic matters, suspended solids as well as chromium.
323 citations
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TL;DR: In this article, the performance of fungal biomass immobilized within a loofa sponge (FBILS) to remove heavy metal ions such as Pb(II), Cu(II) and Zn(II)) from aqueous solution was tested as a new biosorbent system.
262 citations
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TL;DR: In this article, the effectiveness of 12 different adsorbents, originating from waste materials, were used to treat an effluent, of complex composition, from a chemical works, and the effectiveness was measured in terms of its effect on the colour (absorbance at 450 nm) and COD levels of the effluent.
184 citations
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TL;DR: An overview on MEOR and biorefining relevant to the petroleum industry and highlights challenges that need to be overcome to become commercially successful is provided in this paper, where the emerging field of crude oil refining and associated industrial processes such as biodesulfurization, biodemetallation, biodenitrogenation and biotransformation are also covered.
183 citations
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TL;DR: This work shows how the combination of potentiometric titrations, modeling, XPS, and FTIR spectroscopy allows a more comprehensive characterization of bacterial cell surfaces and cell wall reactivity as the initial step to understand the fundamental mechanisms involved in bacterial adhesion to solid surfaces and transport in aqueous systems.
Abstract: Aquabacterium commune, a predominant member of European drinking water biofilms, was chosen as a model bacterium to study the role of functional groups on the cell surface that control the changes in the chemical cell surface properties in aqueous electrolyte solutions at different pH values. Cell surface properties of A. commune were examined by potentiometric titrations, modeling, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectroscopy. By combining FTIR data at different pH values and potentiometric titration data with thermodynamic model optimization, the presence, concentration, and changes of organic functional groups on the cell surface (e.g., carboxyl, phosphoryl, and amine groups) were inferred. The pH of zero proton charge, pH(zpc) = 3.7, found from titrations of A. commune at different electrolyte concentrations and resulting from equilibrium speciation calculations suggests that the net surface charge is negative at drinking water pH in the absence of other charge determining ions. In situ FTIR was used to describe and monitor chemical interactions between bacteria and liquid solutions at different pH in real time. XPS analysis was performed to quantify the elemental surface composition, to assess the local chemical environment of carbon and oxygen at the cell wall, and to calculate the overall concentrations of polysaccharides, peptides, and hydrocarbon compounds of the cell surface. Thermodynamic parameters for proton adsorption are compared with parameters for other gram-negative bacteria. This work shows how the combination of potentiometric titrations, modeling, XPS, and FTIR spectroscopy allows a more comprehensive characterization of bacterial cell surfaces and cell wall reactivity as the initial step to understand the fundamental mechanisms involved in bacterial adhesion to solid surfaces and transport in aqueous systems.
178 citations
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
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TL;DR: Key parameters of an RO process and process modifications due to feed water characteristics are brought to light by a direct comparison of seawater and brackish water RO systems.
2,665 citations
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1,837 citations
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TL;DR: In this review, an extensive list of plant wastes as adsorbents including rice husks, spent grain, sawdust, sugarcane bagasse, fruit wastes, weeds and others has been compiled and some of the treated adsorbent show good adsorption capacities.
1,663 citations
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TL;DR: The purpose of this paper is to review the available information on various attributes of utilization of microbial and plant derived biomass and explores the possibility of exploiting them for heavy metal remediation.
1,466 citations