The hydrodynamics of an ozone contactor with horizontal meandering flow to enhance disinfection efficiency

Autor:	Yunjung Kim, Dooil Kim, Inhwan Hyun, Hosun Lee, Kyung-Hyuk Lee
Rok vydání:	2014
Předmět:	Ozone Flow (psychology) Analytical chemistry Environmental engineering Ocean Engineering Bromate Kinetic energy Pollution chemistry.chemical_compound chemistry TRACER Horizontal flow Dispersion (chemistry) Water Science and Technology Contactor
Zdroj:	Desalination and Water Treatment. 54:1150-1157
ISSN:	1944-3986 1944-3994
DOI:	10.1080/19443994.2014.941012
Popis:	The axial dispersion of an ozone contactor is known to influence Cryptosporidium parvum oocyst inactivation and bromate formation. While low dispersion is beneficial, an extent of dispersion is not specifically addressed for the design of a new ozone contactor. C. parvum oocyst inactivation, residual ozone, CT (i.e. Concentration × Time), and bromate formation were numerically simulated with diverse dispersion number (d), ranging from 0.01 to 5, using axial dispersion reactor model and kinetic parameters obtained from sand-filtered raw water under three pH and three temperature values. C. parvum oocyst inactivation was affected sensitively by the axial dispersion number especially at the region lower than 0.5. On the contrary, residual ozone, CT, and bromate formation were slightly influenced by dispersion number. The axial dispersion number of the full-scale ozone reactor with meandering horizontal flow was obtained with a tracer test. The equation for predicting the dispersion number of an ozone...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b5fd993ac3e5327cc8346772498d240a https://doi.org/10.1080/19443994.2014.941012 Zobrazit plný text záznamu