Nitrate Removal from Aqueous Solutions Using Almond Charcoal Activated with Zinc Chloride

Arbabi, Mohsen; Rostami, Akbar; Mahmoudian, Mohammad hassan; Sedehi, Morteza; Khodabakhshi, Abbas

doi:10.29252/ArchHygSci.6.4.377

Volume 6, Issue 4 (Autumn 2017) Arch Hyg Sci 2017, 6(4): 377-384 | Back to browse issues page

‎ 10.29252/ArchHygSci.6.4.377

‎ 20.1001.1.22519203.2017.6.4.9.1

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Arbabi M, Rostami A, Mahmoudian M H, Sedehi M, Khodabakhshi A. Nitrate Removal from Aqueous Solutions Using Almond Charcoal Activated with Zinc Chloride. Arch Hyg Sci 2017; 6 (4) :377-384
URL: http://jhygiene.muq.ac.ir/article-1-234-en.html

Nitrate Removal from Aqueous Solutions Using Almond Charcoal Activated with Zinc Chloride

Mohsen Arbabi¹

, Akbar Rostami ^*

¹, Mohammad hassan Mahmoudian²

, Morteza Sedehi³

, Abbas Khodabakhshi⁴

1- Department of Environmental Health Engineering, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran.
2- Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran.
3- Department of Epidemiology and Statistical, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran.
4- Shahrekord University of Medic al Sciences

Abstract: (4520 Views)

Background & Aims of the Study: Nitrate is one of the most important contaminants in aquatic environments that can leached to water resources from various sources such as sewage, fertilizers and decomposition of organic waste. Reduction of nitrate to nitrite in infant’s blood stream can cause “blue baby” disease in infants. The aim of this study was to evaluate the nitrate removal from aqueous solutions using modified almond charcoal with zinc chloride.
Materials &Methods: This study is an experimental survey. At the first charcoal almond skins were prepared in 5500C and then modified with ZnCl₂. Morphologies and characterization of almond shell charcoal were evaluated by using FTIR, EDX, BET and FESEM. Adsorption experiments were conducted with 500 ml sample in Becker. The nitrate concentration removal, contact time, pH and charcoal dosage were investigated. The central composite design method was used to optimizing the nitrate removal process. The results analyzed with ANOVA test.
Results: The best condition founded in 48 min, 1250 ppm, 125 mg/l and 3 for retention time, primary nitrate concentration, charcoal dosage and pH respectively. The results showed that the nitrate removal decreases with increasing pH. Modification of skin charcoal is show increasing of nitrate removal from aquatic solution.

Conclusion: In this study, the maximum nitrate removal efficiency for raw charcoal and modified charcoal was determined 15.47% and 62.78%, respectively. The results showed that this method can be used as an effective method for removing nitrate from aqueous solutions.

Keywords: Nitrate, Almond Charcoal, Zinc Chloride, Absorption, Isotherm, Activated Carbon, Iran

Full-Text [PDF 781 kb] (1220 Downloads) | | Full-Text (HTML) (810 Views)

Type of Study: Original Article | Subject: Environmental Health
Received: 2017/02/20 | Accepted: 2017/09/21 | Published: 2017/09/30

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