EVALUATION OF NITRATE REMOVAL FROM THE WATER USING EICHHORNIA CRASSIPES

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AVATEFINEZHAD G.; ASRARI E.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2016 | Volume:12 | Issue:2 Page(s): 141-151

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Information Journal Paper

Title

EVALUATION OF NITRATE REMOVAL FROM THE WATER USING EICHHORNIA CRASSIPES

Author(s)

AVATEFINEZHAD G. | ASRARI E. | Issue Writer Certificate

Keywords

ABSORBENTQ2

EICHHORNIA CRASSIPESQ2

NITRATEQ2

PHYTOREMEDIATIONQ2

Abstract

Conserving water resources and protecting them from pollution are of high importance in natural cycle of our life. NITRATE, as one of the important resources of water pollution, is a serious threat to aquatic ecosystems and due to its high solubility it is a costly process to extract it from water. Providing a reliable, low cost, and fast method is necessary for eliminating pollution. This study tried to determine the refining potential and capacity of EICHHORNIA CRASSIPES for removing NITRATE from water. Factors affecting the NITRATE absorption including initial concentration of NITRATE, contact time, ABSORBENT mass, pH, and the presence of other competing ions such as sulfate have been studied. The results showed that the best efficiency of NITRATE removal of more than 99% occured in the optimum condition; the retention time of 30 hours, ABSORBENT dose of 3 plants (15 stem) and pH of 6.4. In addition, the efficiency of NITRATE removal in the presence of sulfate ions was not reduced. By increasing the initial NITRATE concentration, from 30 to 150 mg/L, there was no significant change in the removal efficiency. By increasing ABSORBENT mass the removal time decreased and the efficiency increased from 67.96% to 100%. The process of NITRATE absorption followed Langmuir isotherm (R2=1). Finally the results showed that EICHHORNIA CRASSIPES is a promising plant with great functionally which can be used as a refiner for removing NITRATE with a simple, efficient and low cost method.

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APA: Copy

AVATEFINEZHAD, G., & ASRARI, E.. (2016). EVALUATION OF NITRATE REMOVAL FROM THE WATER USING EICHHORNIA CRASSIPES. IRAN-WATER RESOURCES RESEARCH, 12(2), 141-151. SID. https://sid.ir/paper/100110/en

Vancouver: Copy

AVATEFINEZHAD G., ASRARI E.. EVALUATION OF NITRATE REMOVAL FROM THE WATER USING EICHHORNIA CRASSIPES. IRAN-WATER RESOURCES RESEARCH[Internet]. 2016;12(2):141-151. Available from: https://sid.ir/paper/100110/en

IEEE: Copy

G. AVATEFINEZHAD, and E. ASRARI, “EVALUATION OF NITRATE REMOVAL FROM THE WATER USING EICHHORNIA CRASSIPES,” IRAN-WATER RESOURCES RESEARCH, vol. 12, no. 2, pp. 141–151, 2016, [Online]. Available: https://sid.ir/paper/100110/en

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