Volume 12, Issue 2 (7-2016)
HSR 2016, 12(2): 184-189 |
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Houshang Armin, Yusef Omidi-Khaniabadi, Ghodratollah Shams-Khorramabadi, Hatam Godini, Afshin Takdastan. Performance of Clarifier Recycled Sludge as Coagulant Aid to Poly-Ferric Sulfate in Terms of Removal Efficiency of Turbidity and Total Coliform from the River of Bahmanshir, Abadan, Iran. HSR 2016; 12 (2) :184-189
URL: http://hsr.mui.ac.ir/article-1-856-en.html
URL: http://hsr.mui.ac.ir/article-1-856-en.html
Houshang Armin 
1, Yusef Omidi-Khaniabadi2 , Ghodratollah Shams-Khorramabadi3 , Hatam Godini4 , Afshin Takdastan5
1, Yusef Omidi-Khaniabadi2 , Ghodratollah Shams-Khorramabadi3 , Hatam Godini4 , Afshin Takdastan5
1- Abadan School of Medical Sciences, Abadan, Iran
2- Health and Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3- Associate Professor, Department of Environmental Health, School of Public Health, Lorestan Jundishapur University of Medical Sciences, Khorramabad, Iran
4- Associate Professor, Department of Environmental Health, School of Public Health, Alborz University of Medical Sciences, Karaj, Iran
5- - Associate Professor, Environmental Technology Research Center AND Department of Environmental Health, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Corresponding Author: Afshin Takdastan, Email: afshin_ir@yahoo.com
2- Health and Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3- Associate Professor, Department of Environmental Health, School of Public Health, Lorestan Jundishapur University of Medical Sciences, Khorramabad, Iran
4- Associate Professor, Department of Environmental Health, School of Public Health, Alborz University of Medical Sciences, Karaj, Iran
5- - Associate Professor, Environmental Technology Research Center AND Department of Environmental Health, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Corresponding Author: Afshin Takdastan, Email: afshin_ir@yahoo.com
Abstract: (866 Views)
Background: In this study, poly-ferric sulfate (PFS) was used as a coagulant accompanied by clarifier recycled sludge for the removal of turbidity and total coliform from water of Bahmanshir River (Abadan, Iran) in 2014.Methods: In this study, jar test was used to simulate coagulation and flocculation at a laboratory scale. The water samples were collected from the treatment pond of the 11th Aban Treatment Plant. The influence of parameters such as mixing speed, pH, coagulant dose, initial turbidity, and coagulant aid dose was investigated on turbidity and total coliforms removal efficiency. Total coliform was determined through the 9 tubes method based on standard method directions No. 9221.Findings: The results showed that the best efficiency in turbidity and coliform removal was obtained in PFS dose of 15 mg/l, mixing speed of 120 rpm, pH of 7, and coagulant aid dose of 2 ml. The highest turbidity removal efficiency (97%) was achieved in the initial turbidity of 150 nephelometric turbidity units (NTU). The highest removal efficiency of turbidity and total coliform was obtained at the dose of 2 ml of recycled sludge.Conclusion: The performance of PFS increased in higher turbidity. Therefore, the coagulant aid dose of 2 ml in initial PFS concentration of 15 mg/l was determined as optimum dose, because it guarantees the necessary standards for drinking water (turbidity lower than 5 NTU).
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2016/07/15 | Published: 2016/07/15
Received: 2020/07/16 | Accepted: 2016/07/15 | Published: 2016/07/15
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