Pilot plant testing of dissolved air flotation for treating Boston's low-turbidity surface water supply

Johnson, Bruce A.; Gong, Bentao; Bellamy, William D.; Tran, Thien

doi:10.1016/0273-1223(95)00207-4

Cited by 7 publications

(1 citation statement)

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“…Comparing with sedimentation, dissolved or dispersed air flotation is often considered to be more suitable for the separation of pollutants with densities similar to or smaller than water. Many studies have shown the advantages of flotation for the treatment of algal rich reservoir stored lowland water (Bauer et al, 1998), low turbidity surface water (Johnson et al, 1995), and taste and odour control (Hargesheimer and Watson, 1996). To enhance pollutants removal by flotation, pre-ozonation has been widely used (Yu et al, 1994;Schmidt et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

A dispersed-ozone flotation (DOF) separator for tertiary wastewater treatment

Jin

Wang

2006

Water Science and Technology

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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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