A dispersed-ozone flotation (DOF) separator was devised for a pilot study of tertiary wastewater treatment for re-use purposes. As a compact device combining coagulation, ozonation and flotation in an integrated unit, the DOF separator achieved a very high removal of SS, TOC, UV254 and colour, as well as effective inactivation of coliform and total bacteria within a short hydraulic retention time of 30 min. The finished water quality is comparable to or better than that by a conventional tertiary treatment process using coagulation, sedimentation, filtration and chlorine disinfection, and meets the quality standards for non-drinkable domestic reuse.
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Research Article| May 01 2006
A dispersed-ozone flotation (DOF) separator for tertiary wastewater treatment
Water Sci Technol (2006) 53 (9): 151–157.
P.K. Jin, X.C. Wang, G. Hu; A dispersed-ozone flotation (DOF) separator for tertiary wastewater treatment. Water Sci Technol 1 May 2006; 53 (9): 151–157. doi: https://doi.org/10.2166/wst.2006.263
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