BIOSORPTION OF IRON FROM AQUEOUS SOLUTION BY DRIED BIOMASS OF ACTIVATED SLUDGE

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SHOKOUHI H.R.; SAGHI M.H.; GHAFARI H.R.; HADI M.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (IJEHSE) Year:2009 | Volume:6 | Issue:2 Page(s): 107-114

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Information Journal Paper

Title

BIOSORPTION OF IRON FROM AQUEOUS SOLUTION BY DRIED BIOMASS OF ACTIVATED SLUDGE

Author(s)

SHOKOUHI H.R. | SAGHI M.H. | GHAFARI H.R. | HADI M. | Issue Writer Certificate

Keywords

BIOSORPTION

DRIED ACTIVATED SLUDGE

IRON

ADSORPTION

Abstract

This study was conducted to investigate the removal of IRON by dried biomass of activated sludge. DRIED ACTIVATED SLUDGE, prepared as a powder, was tested as a sorbent for the removal of IRON from aqueous solutions. The effects of various experimental parameters including initial IRON concentration, mass of biomass and contact time were examined and optimal experimental conditions were obtained. The equilibrium time for IRON ADSORPTION onto biomass was determined as 150 min. The rate of IRON removal was directly correlated to biomass amount and contact time. Increasing contact time from 0.5h to 2.5h resulted in 25% improvement in IRON removal efficiency. When the weight of the biomass increased from 0.1g to 0.9 g, the IRON removal efficiency increased from 62% to 95%. High initial IRON concentration had an adverse effect on IRON removal efficiency. Increasing initial IRON concentration from 2 to 10 (mg/L) caused declining the IRON removal efficiency from 70% to 56%. Freundlich, Langmuir, Dubinin-Radushkevich and Temkin isotherm models could describe the ADSORPTION equilibrium of the IRON onto the activated sludge. Meanwhile, Freundlich isotherm represented a better correlation compared to other isotherms (R2 > 0.999). Also Elovich kinetic models fits well with experimental data (R2>0.997).

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APA: Copy

SHOKOUHI, H.R., SAGHI, M.H., GHAFARI, H.R., & HADI, M.. (2009). BIOSORPTION OF IRON FROM AQUEOUS SOLUTION BY DRIED BIOMASS OF ACTIVATED SLUDGE. IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (IJEHSE), 6(2), 107-114. SID. https://sid.ir/paper/549482/en

Vancouver: Copy

SHOKOUHI H.R., SAGHI M.H., GHAFARI H.R., HADI M.. BIOSORPTION OF IRON FROM AQUEOUS SOLUTION BY DRIED BIOMASS OF ACTIVATED SLUDGE. IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (IJEHSE)[Internet]. 2009;6(2):107-114. Available from: https://sid.ir/paper/549482/en

IEEE: Copy

H.R. SHOKOUHI, M.H. SAGHI, H.R. GHAFARI, and M. HADI, “BIOSORPTION OF IRON FROM AQUEOUS SOLUTION BY DRIED BIOMASS OF ACTIVATED SLUDGE,” IRANIAN JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (IJEHSE), vol. 6, no. 2, pp. 107–114, 2009, [Online]. Available: https://sid.ir/paper/549482/en

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