Arsenic removal by Dissolved Air Flotation

被引：0

作者：

Department of Environmental Health Engineering, Faculty of Health, Zahedan University of Medical Sciences, Zahedan, Iran ^{[1
]}

不详 ^{[2
]}

机构：

[1] Department of Environmental Health Engineering, Faculty of Health, Zahedan University of Medical Sciences, Zahedan

[2] Department of Environmental Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan

来源：

J. Appl. Sci. | 2006年 / 5卷 / 1153-1158期

关键词：

Arsenic; Coagulant; Dissolved air flotation; Drinking water; Polyaluminium chloride;

D O I：

10.3923/jas.2006.1153.1158

中图分类号：

学科分类号：

摘要：

In the present research Arsenic removal by Dissolved Air Flotation (DAF) has been studied in pilot scale. Polyaluminium chloride is best coagulant for arsenic removal is primary turbidity of 10 NTU and coagulant concentration of 40 mg L-1 and saturation Pressure of 4.5 atmosphere. Survey of flocculation time, flotation time and saturation pressure on arsenic removal by dissolved air flotation has shown that their effect on arsenic removal is identical (same). Arsenic has been removed about 99% by this method. © 2006 Asian Network for Scientific Information.

引用

页码：1153 / 1158

页数：5

共 21 条

[1]

Standard Methods for the Examination of Water and Waste Water, (1992)

[2]

Water Quality and Treatment, pp. 426-442, (1990)

[3]

Bunker D.Q., Edzwald J.K., Dahlquist J., Gillbery L.J., Pretreatment consideration for Dissolved Air flotation: Water type, coagulants and flocculation, Water Sci. Technol., 31, pp. 63-71, (1999)

[4]

Chen A., Fields K.A., Sorg T.J., Wang L., Field evoluation of as removal by conventional plants, JAWWA., 94, pp. 64-77, (2002)

[5]

Cheng R.C., Liang S., Wang H.C., Beuhler M.D., Enhanced coagulation for arsenic removal, JAWWA., 85, pp. 79-90, (1994)

[6]

Edwards M., Chemistry of arsenic removal during coagulation and Fe-Mn oxidation, JAWWA., 85, pp. 64-78, (1994)

[7]

Edzwald J.K., Walsh J.P., Kaminski G.S., Dunn H.J., Flocculation and air requirements for dissolved air flotation, AWWA, 84, pp. 92-100, (1992)

[8]

Edzwald J.K., Principles and Applications of Dissolved Air Flotation, Water Sci. Technol., 31, pp. 1-23, (1995)

[9]

Edzwald J.K., Tobiason J.E., Amato T., Maggi L.J., Integrating high-rate DAF technology into plant design, JAWWA., 91, pp. 41-53, (1999)

[10]

Engineering, Handbook of Public Water System, pp. 337-348, (2001)

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