Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Appiah Amirtharajah"'
Autor:
Jim Gianatasio, Skip Pierpont, Jae-Hong Kim, Dooil Kim, Saurabh Marda, Appiah Amirtharajah, John Gordy, Myung-Jong Kim
Publikováno v:
Scopus-Elsevier
Autor:
Neal C. Spivey, Appiah Amirtharajah, James E. Amburgey, Marjorie T. York, B.M. Brouckaert, Michael J. Arrowood
Publikováno v:
Journal - American Water Works Association. 97:77-91
Previous studies involving filter runs seeded with oocysts have not shown significantly poorer removals during ripening. However, these studies typically did not seed oocysts throughout the preceding filter run, which is necessary for representative
Publikováno v:
Journal of Hydraulic Engineering. 131:356-365
The role of sediment pore-water chemistry and the resulting particle structure in determining the erosional stability of settled cohesive sediment beds in rivers, lakes, and estuaries is examined. Kaolinite sediment is used as the surrogate sediment
Autor:
Appiah Amirtharajah, James E. Amburgey
Publikováno v:
Journal of Environmental Engineering. 131:535-547
A new filter backwashing strategy, extended terminal subfluidization wash (ETSW), aimed at reducing particle passage into the filtered water during the initial filter ripening sequence immediately following backwashing has been evaluated on pilot-sca
Autor:
Matt Alvarez, Appiah Amirtharajah
Publikováno v:
Journal - American Water Works Association. 96:56-60
Publikováno v:
Journal - American Water Works Association. 96:97-110
Because much rier Cryptosporidium against attention of the this limitations has pathogen. oocysts been of directed and The many the ripening chemical fear toward of or waterborne filtration disinfectants maturation as disease the period for primary i
Publikováno v:
Journal - American Water Works Association. 95:81-94
The increased passage of particles through granular media filters immediately following backwashing is commonly known as the filter-ripening period, and several strategies have been developed through the years to reduce the effect of this vulnerable
Publikováno v:
Journal of Environmental Engineering. 128:431-440
To improve the understanding of how static mixers work and how to better utilize them in environmental engineering (or, specifically, drinking water treatment), a numerical model for simulating turbulent flows in helical static mixers is developed. T
Publikováno v:
Journal of Environmental Engineering. 127:531-538
The resuspension of contaminated cohesive sediments can impact water quality by mobilizing sediment particles and adsorbed contaminants. Changes in physicochemical and electrochemical environments around resuspended sediment particles may cause some
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 177:99-110
In this study, a micromechanics interaction model has been developed for kaolinite particles, and experiments have been performed on attachment and detachment of particles in porous media columns. The experimental results are discussed and interprete