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aumj 2014, 3(1): 40-47 Back to browse issues page
Removal of Nitrate by Zero Valent Iron in the Presence of H2O2
M.R. Samarghandi, S.M. Tabatabai, M. Noori Sepehr, E. Mohammadi Kalhori, M. Zarrabi
Department of Environmental Health Engineering, Faculty of Health, Alborz University of Medical Science, Karaj, Iran , mansor62@gmail.com
Abstract:   (6444 Views)
Background & Aims: Nitrate is the oxidation state of nitrogen compounds, which is founded in water resources that contaminated by municipal, industrial and agricultural waste water. If nitrate leek in to ground water resources, it can cause health problems. Material and Methods: Removal of nitrate from ground water by iron powder in the presence of H2O2 was investigated. Experiments have been done by use of 250 ml of water samples containing 100 mg/L nitrate in various condition. Various parameters such as pH (3, 5, 7, 9), iron dosage (10, 15, 20, 30 g/L), initial H2O2 concentration (5, 10, 15, 20 ml/L) and contact time (10-120 min). Results: Obtained results shows the removal of nitrate was increased by pH reduction, increment of iron mass and contact time. In addition, nitrate reduction was increased by increment of initial H2O2 concentration up to 15 ml/L. High removal was observed at pH=3, iron mass=30 g/L, contact time equal 120 min and H2O2 concentration=15 ml/L. At above condition, upon 98% of nitrate was removed. Conclusion: In summary, this method is simple, low cost and effective for removal of nitrate from ground water and industrial activity.
Keywords: Nitrate, drinking water, zero valent Iron, pH
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Type of Study: Research | Subject: Special
Received: 2014/03/15 | Accepted: 2014/03/15 | Published: 2014/03/15
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Samarghandi M, Tabatabai S, Noori Sepehr M, Mohammadi Kalhori E, Zarrabi M. Removal of Nitrate by Zero Valent Iron in the Presence of H2O2. aumj. 2014; 3 (1) :40-47
URL: http://aums.abzums.ac.ir/article-1-159-en.html

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Volume 3, Issue 1 (1-2014) Back to browse issues page
نشریه دانشگاه علوم پزشکی البرز Alborz University Medical Journal
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