Results 231 to 240 of about 14,433 (262)

Comparative Toxicity of Two Chemical Dispersants and Dispersed Oil in Estuarine Organisms

Archives of Environmental Contamination and Toxicology, 2017
Chemical dispersants can be a useful tool to mitigate oil spills. This study examined potential risks to sensitive estuarine species by comparing the toxicity of two dispersants (Corexit® EC9500A and Finasol® OSR 52) individually and in chemically enhanced water-accommodated fractions (CEWAFs) of Louisiana Sweet Crude oil. Acute toxicity thresholds and
M. E. DeLorenzo, P. B. Key, K. W. Chung, E. Pisarski, B. Shaddrix, E. F. Wirth, P. L. Pennington, J. Wade, M. Franco, M. H. Fulton   +9 more
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Chemically reactive generalized Taylor dispersion phenomena

AIChE Journal, 1987
AbstractGeneralized Taylor dispersion theory for nonreactive solutes (Brenner 1980a; 1982) undergoing convection and diffusion is extended to include irreversible first‐order volumetric and surface chemical reactions possessing position‐dependent reactivity coefficients at the microscale.
Michael Shapiro, Howard Brenner
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Chemical Kinetics in Dispersed-Phase Reactors

International Journal of Chemical Reactor Engineering, 2003
Many chemical engineering processes occur under conditions when a dispersed phase undergoes fragmentation (breakup) and/or aggregation (coalescence). It is of considerable interest to model a chemical process that occurs at the interface and therefore depends on the evolving size distribution of the dispersed phase.
Ben J McCoy, Giridhar Madras
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Dispersion and Chemical Reactions in Porous Media

Fluid Dynamics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Chemical dispersant effectiveness testing: influence of droplet coalescence

Marine Pollution Bulletin, 2004
Thermodynamic and kinetic investigations were performed to determine the influence of coalescence of chemically dispersed crude oil droplets in saline waters. For the range of pH (4-10) and salinity (10 per thousand, 30 per thousand, 50 per thousand ) values studied, zeta-potential values ranged from -3 to -10 mV.
Michael C, Sterling, James S, Bonner, Andrew N S, Ernest, Cheryl A, Page, R L, Autenrieth   +4 more
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Chemical physics of dispersed material surfaces

Reaction Kinetics & Catalysis Letters, 1993
Adsorption and chemisorption processes involving hydroxy groups and coordinated water molecules on the surface of silica are discussed on the basis of information derived from infrared spectra, ESCA and thermogravimetric data. The formation of strongly adsorbed surface complexes is described in terms of changes in coordination number of silicon atoms ...
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Chemical Investigation of Disperse Dyes in Patch Test Preparations

Dermatitis, 2007
Background:  Contact allergy to textile dyes is not uncommon. The allergy is detected by patch testing patients with commercial patch test preparations.Objective:  To investigate 8 disperse dyes (DDs) used for patch testing in the departments in Malmö and in Leuven and to compare them with test preparations used at various dermatology departments ...
Kristina, Ryberg, Birgitta, Gruvberger, Erik, Zimerson, Marléne, Isaksson, Lena, Persson, Osten, Sörensen, An, Goossens, Magnus, Bruze   +7 more
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Chemical Society Industrial Fellowship on Dispersions

Pigment & Resin Technology, 1980
The Process Technology Group of the Chemical Society have recently set up a Research Fellowship to investigate the rheological problems encountered by industry when dealing with dispersions; in particular the prediction of their properties from a knowledge of the nature of the continuous and disperse phases, especially the physical chemistry of the ...
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Rapid Prediction of Chemical Cloud Dispersion from Chemical Spill Accidents

Energy Sources, 1998
Responders to spill accidents need to have at their fingertips a method of rapid prediction of chemical cloud dispersion behavior and other relative information to protect the public from death and injury during evacuation of the affected area. A survey of 123 chemical spill accidents in the US where evacuations occurred revealed that available ...
J. NORDIN, D. SHEESLEY, S. B. KING, T. ROUTH, V. SMITH   +4 more
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BIODEGRADATION OF A CHEMICALLY DISPERSED CRUDE OIL

International Oil Spill Conference Proceedings, 1981
ABSTRACT The n-alkane fraction of Prudhoe Bay crude oil dispersed with Corexit 9527 disappeared rapidly from the water column directly beneath a seawater surface slick contained by an enclosure. Biodegradation appeared to be more important than nonbiological volatilization or photooxidation processes.
W. J. Cretney, R. W. Macdonald, C. S. Wong, D. R. Green, B. Whitehouse, G. G. Geesey   +5 more
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