Adsorption of Iron by Fly Ash Adsorbent of Coal

Abstract

This research has investigated adsorption of Fe with using fly ash adsorbent. Phase of adsorption of Fe is activated with H 2 SO 4 after that the fly ash were characterized by using XRF, FTIR and SEM. Determination of optimum conditions on the adsorption of Fe with adsorbent mass variations, variations in contact time, pH variation and variation concentration and adsorption isotherm study. Resulth show that the adsorption of Fe in optimum condition occurs in adsorbent mass of 2.5 g, for 60 minutes contact time with pH 4 at a concentration of 20 ppm. The results also able to adsorp up to 94% Fe. The adsorption of Fe with using fly ash adsorbent was more fitted to the Langmuir model than to Freundlich model.

Immobilized Tannin from Sanseviera trifasciata on Carbon as Adsorbent For Iron(II) in Polluted Water Source

“…Immobilization of isolated tannin onto carbon black directly can be performed by mixing the isolated tannin solution in acetone-water (70-30 v/v) with acid-activated carbon 3 for an hour at room temperature [18]. After drying process in oven at 105 o C, tannin impregnated on carbon as adsorbent was resulted (…”

“…It contains a small amount of mineral or metal in acceptable quantity. However, increasing industrialization in Indonesia some heavy metals leaching from industrial and community area contaminates the water sources [1][2][3]. For example iron contaminated water sources in the river and community well [3,4].…”

“…However, increasing industrialization in Indonesia some heavy metals leaching from industrial and community area contaminates the water sources [1][2][3]. For example iron contaminated water sources in the river and community well [3,4]. Some methods have been developed in order to reduce excessive iron contained in water source [5,6].…”

“…Some methods have been developed in order to reduce excessive iron contained in water source [5,6]. For example, by applying adsorption [3,7], precipitation [8], evaporation, and electrochemistry techniques [9]. However, these methodologies are generally not suitable for local development priority.…”

Study of Duck Feather Modification using NaOH to Removal Iron in Acid Mine Drainage (AMD)

“…This suggests that the duck's adsorbent surface is homogeneous and adsorb only one adsorbate molecule for each of its adsorbent molecules, as well as the Langmuir isotherm, in general, would be preferable to apply to chemical adsorption. The adsorption of Fe by chitosan [23], Rice Hush ash (RHA) [24] iron by fly ash from coal [25], and kaolinbased nanocomposite [26] also follows Langmuir and Freundlich isotherms. Isotherm Langmuir> Temkin>Freundlich biosorption iron using oil palm biomasses [27].…”