Author: John Matthew ThomasPublisher:
ISBN:
Category : Colloids
Languages : en
Pages : 142
Book Description
Acoustically Enhanced Colloid Transport in Saturated Porous Media
Author: John Matthew ThomasPublisher:
ISBN:
Category : Colloids
Languages : en
Pages : 142
Book Description
Colloid Transport in Saturated and Unsaturated Porous Media
Author: Jun QiColloidal Transport in Porous Media
Author: Fritz H. FrimmelPublisher: Springer Science & Business Media
ISBN: 3540713395
Category : Science
Languages : en
Pages : 294
Book Description
This book covers the basics of abiotic colloid characterization, of biocolloids and biofilms, the resulting transport phenomena and their engineering aspects. The contributors comprise an international group of leading specialists devoted to colloidal sciences. The contributions include theoretical considerations, results from model experiments, and field studies. The information provided here will benefit students and scientists interested in the analytical, chemical, microbiological, geological and hydrological aspects of material transport in aquatic systems and soils.
Colloid Transport and Attenuation in Saturated Porous Media
Author: Xinyao YangPublisher: LAP Lambert Academic Publishing
ISBN: 9783847377405
Category : Attenuation (Physics)
Languages : en
Pages : 244
Book Description
Colloids refer to particles or macromolecules with at least one dimension of 1nm 1m. A wide range of environmental particles fall within this category including microorganisms, nanoparticles, and mineral precipitates. Understanding colloid fate and transport in porous medium not only permits more effective protection of water supplies, but also allows for the development of more effective pollutant remediation strategies. Organic matter (OM) complicates colloid behaviour. To date the influence of OM on colloid mobility in porous media has been largely qualitative. This book presents research leading to the development of multiple-pulse column techniques that may be integrated with mathematical models to quantify the effects of OM on particulate colloid attenuation in saturated porous medium. Research has investigated how two groups of environmental organic compounds, humic acids and proteins, influence particulate colloid attenuation by saturated sand. Study findings may shed light on complex colloidal behaviour in organic matter impacted environment and be useful to professionals in contaminant hydrogeology, environmental remediation, and wastewater treatment.
Colloid Transport in Saturated Porous Media
Author: Ann MathewLaboratory Column Technique for the Measurement of Colloid Transport in Variably-saturated Porous Media
Author: Kelly Dean CherreyPublisher:
ISBN:
Category : Colloids
Languages : en
Pages : 0
Book Description
Uniformly desaturated porous media. A coarse sand matrix which reached residual water content near 20 cm of water suction was used to verify the utility of the technique. Colloid suspensions were uniformly applied using a sprinkler with low dead volume, trivial concentration attenuation, and minimal nuisance dispersion. Unsaturated outflow suction was applied with a hanging water column through a 65 micron porous glass frit. Matric potential was measured along the column (internal diameter and length of 5 and 20 cm, respectively) at five locations. Transport breakthroughs were measured with a NaNO3 conservative tracer and two types of colloids: those removed from the matrix (native colloids) and those modified by a simulated Hanford tank-waste solution (Zhao et al., 2001). NaNO3 and colloid outflow concentrations were measured in real-time using absorbance spectroscopy. Average water content was determined from column weight and matric potential was measured using porous ceramic cups coupled with electronic strain-gage transducers. An effective saturation () design error of = 0.01 was easily verified during operation.
Influence of Natural Organic Matter on Colloid Transport and Attenuation in Saturated Porous Media-experimentation and Modelling
Author: Xinyao YangThe Role of Colloidal Systems in Environmental Protection
Author: Monzer FanunPublisher: Elsevier
ISBN: 0444632840
Category : Science
Languages : en
Pages : 715
Book Description
The Role of Colloidal Systems in Environmental Protection describes the importance of colloids in many applications that contribute to environmental protection, including drinking water and wastewater treatment, heavy metal remediation, treatment of radioactive materials, corrosion, and energy conversion. Knowledge of the physical and chemical composition of colloids is important to understand and accurately model the relevant processes. The book familiarizes the reader with the technological features of the application of colloids in environmental protection, and provides chemical engineers, researchers, and scientists in academic and corporate communities with the latest developments in this field. Each chapter covers the whole spectrum of the relevant science, from the fundamentals to applications. - Provides the applied technological features of colloids in environmental protection - Gives insight into the use of bio-solid colloids as contaminant carriers - Covers the natural occurrence of biosurfactants in the environment and their applications - Provides information on the use of nanoparticles for environmental applications - Chapters written by recognized and respected experts in the field from all over the world
Modelling of Pollutants in Complex Environmental Systems
Author: Grady HanrahanPublisher: ILM Publications
ISBN: 1906799016
Category : Nature
Languages : en
Pages : 489
Book Description
Environmental modelling has enjoyed a long tradition, but there is a defined need to continually address both the power and the limitations of such models, as well as their quantitative assessment. This book showcases modern environmental modelling methods, the basic theory behind them and their incorporation into complex environmental investigations. It highlights advanced computing technologies and how they have led to unprecedented and adaptive modelling, simulation and decision-support tools to study complex environmental systems, and how they can be applied to current environmental concerns. This volume is essential reading for researchers in academia, industry and government-related bodies who have a vested interest in all aspects of environmental modelling. Features include: A range of modern environmental modelling techniques are described by experts from around the world, including the USA, Canada, Australia, Europe and Thailand; many examples from air, water, soil/sediment and biological matrices are covered in detail throughout the book; key chapters are included on modelling uncertainty and sensitivity analysis; and, a selection of figures are provided in full colour to enable greater comprehension of the topics discussed.
Evaluation of Colloid Facilitated Transport of Chromium Through Saturated Porous Media Using Column Experiments
Author: Joseph E. BonettiPublisher:
ISBN:
Category : Chromium
Languages : en
Pages : 600
Book Description