[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 15, Number 10 (March 2013) ::
amuj 2013, 15(10): 67-76 Back to browse issues page
Evaluation of nitrate removal from water by Fe/H2O2 and adsorption on activated carbon
Behroz Karimi , Mohamad-Sadegh Rajaei, Mohammad Javad Ganadzadeh, Masoumeh Mashayekhi, Mostafa Jahanbakhsh
Arak University of Medical Sciences , karimibehroz@yahoo.com
Abstract:   (7231 Views)
Background: The presence of nitrate in drinking water causes various health and environmental problems. The aim of this study was to evaluate the efficacy of nitrate reduction by Fe/H2O2 process and adsorption on activated carbon. Materials and Methods: This experimental study investigated nitrate oxidation by advanced oxidation process of Fe°/FeІІ/FeШ/H2O2 at pH 2-10, nitrate concentrations of 50-300 mg/L. After adjusting the pH, 0.5, 1, 2, 5, and 10 g/L values of GAC, PAC, H2O2/GAC, and Fe/H2O2/GAC together with H2O2 at retention times of 15, 30, 45, 60, and 90 minutes, respectively, were added and mixed. Results: At retention time of 10 minutes and 0.5 mL H2O2 and 1 g/L from Fe°, FeІІ, and FeІІІ, the removal efficacy was 88.5, 84 and 78%, respectively. At 50 mg/L nitrate and 0.5, 1, and 10 mg/L GAC concentrations, the removal efficacy was 56.5, 93.6, and 82.6%, respectively. The nitrate removal efficiency at pH=4 was approximately 50%, whereas at pH=3 with 30% efficacy, it increased to 80%. Conclusion: Modified Fe/H2O2 process with iron nano-particles and activated carbon adsorption can effectively reduce nitrate under optimal conditions. The use of activated carbon at a concentration of 1 g/L increased the removal efficiency of nitrate to 90%.
Keywords: Advanced oxidation process, aqueous system, iron compound, nitrate absorption
Full-Text [PDF 397 kb]   (2126 Downloads)    
Type of Study: Original Atricle | Subject: Health
Received: 2012/07/17 | Accepted: 2012/09/20
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Karimi B, Rajaei M, Ganadzadeh M J, Mashayekhi M, Jahanbakhsh M. Evaluation of nitrate removal from water by Fe/H2O2 and adsorption on activated carbon. amuj. 2013; 15 (10) :67-76
URL: http://amuj.arakmu.ac.ir/article-1-1842-en.html
Volume 15, Number 10 (March 2013) Back to browse issues page
مجله دانشگاه علوم پزشکی اراک Arak Medical University Journal
Persian site map - English site map - Created in 0.057 seconds with 796 queries by yektaweb 3506