Effect of mean velocity gradient and mixing time on particle removal in seawater induced flocculation

Autor:	Ben Koopman, I. S. Seo, S. I. Lee
Rok vydání:	1994
Předmět:	Flocculation Environmental Engineering Chemistry Velocity gradient Ecological Modeling Environmental engineering Mixing (process engineering) Analytical chemistry Breakup Pollution Industrial wastewater treatment Wastewater Environmental Chemistry Particle Seawater Water Science and Technology
Zdroj:	Water, Air, & Soil Pollution. 78:179-188
ISSN:	1573-2932 0049-6979
DOI:	10.1007/bf00475676
Popis:	Various combinations of mean velocity gradient (G) and mixing time (td) in the seawater flocculation of industrial wastewater and oxidation pond effluent were investigated. The optimum product of these parameters (Gtd) lies within the range of 16,000 to 160,000. Inclusion of a slow mixing phase improved particle removal over that achieved by rapid mixing alone at equal gSGtd. The minimum Gtd at which peak particle removal was achieved decreased as seawater dosage increased. Similar trends were demonstrated with increasing dosages of the flocculant chitosan. An empirical model of flocculation kinetics, having the same form as the partice aggregation-floe breakup model, was found to portray accurately the effects of G and td.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4db192723db45dcc6a4525a1d406d897 https://doi.org/10.1007/bf00475676 Zobrazit plný text záznamu Full text from SpringerLink