Search Results - "Droppo, I. G"

From soil aggregates to riverine flocs: a laboratory experiment assessing the respective effects of soil type and flow shear stress on particles characteristics by Grangeon, T, Droppo, I. G, Legout, C, Esteves, M

“…Particles eroded from hillslopes and exported to rivers are recognized to be composite particles of high internal complexity. Their architecture and…”
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Surface properties of sludge and their role in bioflocculation and settleability by Liao, B.Q, Allen, D.G, Droppo, I.G, Leppard, G.G, Liss, S.N

“…The influence of sludge retention time (SRT) on the extracellular polymeric substances (EPS) and physicochemical properties (hydrophobicity and surface charge)…”
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Modelling sediment-microbial dynamics in the South Nation River, Ontario, Canada: Towards the prediction of aquatic and human health risk by Droppo, I.G., Krishnappan, B.G., Liss, S.N., Marvin, C., Biberhofer, J.

“…Runoff from agricultural watersheds can carry a number of agricultural pollutants and pathogens; often associated with the sediment fraction. Deposition of…”
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Biostabilization and erodibility of cohesive sediment deposits in wildfire-affected streams by Stone, M., Emelko, M.B., Droppo, I.G., Silins, U.

“…The erosion characteristics and bed stability of wildfire-affected stream sediment were measured in an annular flume. Biofilms were grown in the flume on…”
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A novel tracer technique for the assessment of fine sediment dynamics in urban water management systems by Spencer, K.L., Droppo, I.G., He, C., Grapentine, L., Exall, K.

“…Urban storm water run off can reduce the quality of receiving waters due to high sediment load and associated sediment-bound contaminants. Consequently, urban…”
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Effects of chemical amendments on aquatic floc structure, settling and strength by Droppo, I.G., Exall, K., Stafford, K.

“…Using a shear-cell/flow-cell combination integrated with an inverted microscope, the behaviour of Hamilton Harbour sediments was studied mixed with three…”
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Interparticle Interactions Affecting the Stability of Sludge Flocs by Liao, B.Q., Allen, D.G., Leppard, G.G., Droppo, I.G., Liss, S.N.

“…Interparticle interactions affecting the stability of sludge flocs taken from laboratory-scale sequencing batch reactors at different solids retention times…”
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Tracking functional bacterial biomarkers in response to a gradient of contaminant exposure within a river continuum by Reid, T., Droppo, I.G., Weisener, C.G.

“…Within all aquatic environments, aside from the physical dispersal of dissolved and/or particulate phase contaminants, alteration from both biological and…”
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UV disinfection of wastewater flocs: the effect of secondary treatment conditions by AZIMI, Y, CHEN, X, ALLEN, D. G, PILEGGI, V, SETO, P, DROPPO, I. G, FARNOOD, R. R

“…Activated sludge flocs that are carried to the final effluent can significantly decrease the effectiveness of ultraviolet (UV) disinfection of wastewater. This…”
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Variation in PAH inputs and microbial community in surface sediments of Hamilton Harbour: Implications to remediation and monitoring by Slater, G.F., Cowie, B.R., Harper, N., Droppo, I.G.

“…Variations in concentrations of polycyclic aromatic hydrocarbons (PAHs) and microbial community indicators were investigated in representative highly…”
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The freshwater floc : A functional relationship of water and organic and inorganic floc constituents affecting suspended sediment properties by DROPPO, I. G, LEPPARD, G. G, FLANNIGAN, D. T, LISS, S. N

“…A large number of freshwater flocs were examined using correlative microscopy to evaluate their internal structure and its potential impact on floc behaviour…”
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Assessment of erosion and settling properties of fine sediments stored in cobble bed rivers: the Arc and Isère alpine rivers before and after reservoir flushing by Legout, C., Droppo, I.G., Coutaz, J., Bel, C., Jodeau, M.

“…Cohesive sediment dynamics in mountainous rivers is poorly understood even though these rivers are the main providers of fine particles to the oceans. Complex…”
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The effect of depositional history on contaminated bed sediment stability by Droppo, I.G., Lau, Y.L., Mitchell, C.

“…Experiments were conducted in an annular flume using a commercially available kaolinite clay as well as contaminated bed sediment from Hamilton Harbour…”
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Hydrodynamic Treatment of Wastewater Effluent Flocs for Improved Disinfection by Gibson, J., Droppo, I. G., Farnood, R., Mahendran, B., Seto, P., Liss, S. N.

“…Hydrodynamic forces generated by an orifice plate under low pressure were examined as a means of disrupting floes, in order to improve disinfection of treated…”
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Microbial interactions with naturally occurring hydrophobic sediments: Influence on sediment and associated contaminant mobility by Droppo, I.G., Krishnappan, B.G., Lawrence, J.R.

“…The erosion, transport and fate of sediments and associated contaminants are known to be influenced by both particle characteristics and the flow dynamics…”
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Evaluation of a laser-assisted particle sizing/settling velocity determination technique by Droppo, I. G., Krishnappan, B. G., Jaskot, C.

“…The use of predictive models for the understanding and management of sediment and contaminant transport generally requires knowledge of particle size and…”
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Distribution of lead, copper and zinc in size-fractionated river bed sediment in two agricultural catchments of southern Ontario, Canada by Stone, M., Droppo, I.G.

“…Metal (Pb, Cu and Zn) partitioning in six separated sediment size fractions (<8, 8–12, 12–19, 19–31, 31–42, 42–60 μm) of river bed sediment have been analyzed…”
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Influence of antecedent conditions on critical shear stress of bed sediments by Lau, Y.L, Droppo, I.G

“…Experiments were conducted in an annular flume using kaolinite clay and bed sediment collected within an industrial boat slip of Hamilton Harbour to assess…”
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The symbiotic relationship of sediment and biofilm dynamics at the sediment water interface of oil sands industrial tailings ponds by Reid, T., VanMensel, D., Droppo, I.G., Weisener, C.G.

“…Within the oil sands industry, tailings ponds are used as a means of retaining tailings until a reclamation technology such as end pit lakes (EPLs) can be…”
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Collaborative microbial Fe-redox cycling by pelagic floc bacteria across wide ranging oxygenated aquatic systems by Elliott, A.V.C., Plach, J.M., Droppo, I.G., Warren, L.A.

“…Fe(III)-reducing bacteria (IRB) and Fe(II)-oxidizing bacteria (IOB) significantly impact the transformations and geochemical cycling of Fe. As these bacteria…”
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