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:: Volume 3, Issue 2 (Spring, 2016) ::
Environ. Health Eng. Manag. 2016, 3(2): 69-73 Back to browse issues page
Nitrate removal from water using alum and ferric chloride: A comparative study of alum and ferric chloride efficiency
Ali Ahmad Aghapour , Sepideh Nemati , Amir Mohammadi , Heshmatollah Nourmoradi , Sima Karimzadeh
Environmental Health Engineering, Student Research Committee, School of Health, Urmia University of Medical Sciences, Urmia, Iran , amahammadi@gmail.com
Abstract:   (10287 Views)

Background: Nitrate is an acute and well-known hazardous contaminant, and its contamination of water sources has been a growing concern worldwide in recent years. This study evaluated the feasibility of nitrate removal from water using the traditional coagulants alum and ferric chloride with lower concentrations than those used in the conventional coagulation process.
Methods: In this research, two coagulants, alum and ferric chloride, were compared for their efficiency in removing nitrate in a conventional water treatment system. The removal process was done in a batch system (jar test) to examine the effects of coagulant dosages and determine the conditions required to achieve optimum results.
Results: The results revealed that ferric chloride at an initial dose rate of 4 mg/L reduced nitrate concentration from 70 mg/L to less than the World Health Organization (WHO) guideline value (50 mg/L N-NO3). However, the removal efficiency of alum was not salient to significant nitrate reduction.
Conclusion: In conclusion, ferric chloride was more effective than alumin removing NO-3, even in common dosage range, and can be considered a cost-effective and worthy treatment option to remediate nitrate-polluted water. Furthermore, the removal of nitrate by coagulation can be simple and more economical than other treatment alternatives.

Keywords: Nitrate, Water treatment, Coagulation, Alum, Ferric chloride
eprint link: http://eprints.kmu.ac.ir/id/eprint/25443
Full-Text [PDF 564 kb]   (9398 Downloads)    
Type of Study: Original Article | Subject: General
Received: 2016/04/25 | Accepted: 2016/04/25 | Published: 2016/04/25
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Aghapour A A, Nemati S, Mohammadi A, Nourmoradi H, Karimzadeh S. Nitrate removal from water using alum and ferric chloride: A comparative study of alum and ferric chloride efficiency. Environ. Health Eng. Manag. 2016; 3 (2) :69-73
URL: http://ehemj.com/article-1-146-en.html

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Volume 3, Issue 2 (Spring, 2016) Back to browse issues page
Environmental Health Engineering And Management Journal Environmental Health Engineering And Management Journal
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