KINETICS AND ISOTHERMIC BEHAVIOR OF SIO2 NANOPARTICLES IN REMOVAL OF HUMIC ACID FROM AQUEOUS SOLUTIONS: A CASE STUDY ON THE ALAVIAN DAM IN MARAGHEH CITY, IRAN

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MANSOORI FATEMEH; RANANDEH KALANKESH LALEH; MALAKOOTIAN MOHAMMAD

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Journal: Health and Development Journal Year:2014 | Volume:3 | Issue:1 Page(s): 71-83

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Title

KINETICS AND ISOTHERMIC BEHAVIOR OF SIO2 NANOPARTICLES IN REMOVAL OF HUMIC ACID FROM AQUEOUS SOLUTIONS: A CASE STUDY ON THE ALAVIAN DAM IN MARAGHEH CITY, IRAN

Author(s)

MANSOORI FATEMEH | RANANDEH KALANKESH LALEH | MALAKOOTIAN MOHAMMAD | Issue Writer Certificate

Keywords

HUMIC ACIDQ2

SIO2 NANOPARTICLEQ2

ADSORPTION ISOTHERMQ2

Abstract

Background: Humic substances in drinking water react with chlorine and form carcinogenic compounds. The adsorption process, as a simple and cost-effective process, has attracted great attention in pollutant removal. The aim of this research was kinetic and isotherm study of HUMIC ACID adsorption by silicon nanoparticles in water.Methods: This experimental study was conducted on a synthetic and then a real water sample collected from Alavian Dam in Maragheh city. The effects of pH, absorbent amount and time on the removal of HUMIC ACID were evaluated. In order to get a better insight into the process of adsorption, the adsorption kinetic and equilibrium isotherm and thermal energy were determined. Data analysis was performed through SPSS16 and using regression and Pearson coefficient of correlation.Results: The highest percentage of HUMIC ACID adsorption was observed at pH=4, retention time of 10 minutes and absorbent amount of 0.25 g/L with removal efficiency of 88.4% and 86.7% for synthetic and real samples respectively. Meanwhile, the removal of HUMIC ACID followed Langmuir isotherm and its rate followed the second order kinetic model. Optimal capacity of adsorbent was 1.56 mg/g based on Langmuir model. The obtained RL (0.1) shows efficient silicon nanoparticles adsortion capacity in HUMIC ACID removal. Thermodynamic study showed that HUMIC ACID adsorption on silicon nanoparticle is a spontaneous and thermal process.Conclusion: The adsoption of HUMIC ACID by nanoparticles depends on the initial concentration of the compounds and as the initial concentration increases the adsorption time decreases. This is an appropriate method for eliminating HUMIC ACID.

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APA: Copy

MANSOORI, FATEMEH, RANANDEH KALANKESH, LALEH, & MALAKOOTIAN, MOHAMMAD. (2014). KINETICS AND ISOTHERMIC BEHAVIOR OF SIO₂ NANOPARTICLES IN REMOVAL OF HUMIC ACID FROM AQUEOUS SOLUTIONS: A CASE STUDY ON THE ALAVIAN DAM IN MARAGHEH CITY, IRAN. HEALTH AND DEVELOPMENT JOURNAL, 3(1), 71-83. SID. https://sid.ir/paper/233585/en

Vancouver: Copy

MANSOORI FATEMEH, RANANDEH KALANKESH LALEH, MALAKOOTIAN MOHAMMAD. KINETICS AND ISOTHERMIC BEHAVIOR OF SIO₂ NANOPARTICLES IN REMOVAL OF HUMIC ACID FROM AQUEOUS SOLUTIONS: A CASE STUDY ON THE ALAVIAN DAM IN MARAGHEH CITY, IRAN. HEALTH AND DEVELOPMENT JOURNAL[Internet]. 2014;3(1):71-83. Available from: https://sid.ir/paper/233585/en

IEEE: Copy

FATEMEH MANSOORI, LALEH RANANDEH KALANKESH, and MOHAMMAD MALAKOOTIAN, “KINETICS AND ISOTHERMIC BEHAVIOR OF SIO₂ NANOPARTICLES IN REMOVAL OF HUMIC ACID FROM AQUEOUS SOLUTIONS: A CASE STUDY ON THE ALAVIAN DAM IN MARAGHEH CITY, IRAN,” HEALTH AND DEVELOPMENT JOURNAL, vol. 3, no. 1, pp. 71–83, 2014, [Online]. Available: https://sid.ir/paper/233585/en

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