Experimental data for aluminum removal from aqueous solution by raw and iron-modified granular activated carbon

Abstract

This dataset deals with the modification of granular activated carbon (GAC) with FeCl3 under basic conditions (pH ≈ 12) for removal of aluminium (Al) from aqueous solution. The structural properties and operational parameters including Al ion concentration (2.15 and 10.3 mg/L), pH solution (2–10), adsorbent dosage (0.1–5 g/L), and contact time (0–10 h) was investigated for raw and modified GAC. This dataset provides information about Al removal by GAC and modified GAC at conditions including: pH = 8, contact time = 6 h, initial Al concentration = 2.15 mg/L. The characterization data of the adsorbents was analysed by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and Brunauer, Emmett and Teller (BET) test. The data showed that Freundlich isotherm with and Pseudo second order kinetic model were the best models for describing the Al adsorption reactions. The acquired data indicated that the maximum adsorption capacity of GAC and modified GAC to uptake Al (C0 = 10.3 mg/L) was 3 and 4.37 mg/g respectively.

Removal of aluminum from alkaline aqueous solution by adsorption on Degussa P25 TiO2 and vermiculite concrete‐supported ferric oxyhydroxide

“…It was found that the number of studies on Al removal from aqueous solutions by adsorption is limited and mostly focus on Al removal by organic‐based materials at predominantly acidic pH range (pH<6.0) . The results on the performance of various adsorbents in alkaline aqueous solution are presented in Table …”

“…[28,29,48,51] The results on the performance of various adsorbents in alkaline aqueous solution are presented in Table 5. [25,26] The data indicate that TiO 2 , VC, and MA have a comparable or even a higher adsorption capacity for Al removal at alkaline conditions compared to activated carbon materials, [26] (Table 5). Additionally, the equilibrium time of Al adsorption on TiO 2 and MA is significantly lower than the carbon and char-based adsorbents, [25,26] and even relatively low MA doses are capable of decreasing Al concentrations to below the drinking water guidelines.…”

“…[25,26] The data indicate that TiO 2 , VC, and MA have a comparable or even a higher adsorption capacity for Al removal at alkaline conditions compared to activated carbon materials, [26] (Table 5). Additionally, the equilibrium time of Al adsorption on TiO 2 and MA is significantly lower than the carbon and char-based adsorbents, [25,26] and even relatively low MA doses are capable of decreasing Al concentrations to below the drinking water guidelines. The strengths of the adsorbents tested make MA a reliable and effective adsorbent for Al removal from the alkaline aqueous solution.…”

“…Despite the fact that numerous adsorbents have been tested to remove metal pollutants from aqueous solutions, only a limited number of investigations have been dedicated to the adsorption of Al. Among them, only a few investigations describe Al removal by means of adsorption from alkaline aqueous solutions (pH≥8.0) . Most studies on Al adsorption from water are focused on the investigation of the adsorption capacity of various organic‐based materials in acidic aqueous solutions .…”

“…Among them, only a few investigations describe Al removal by means of adsorption from alkaline aqueous solutions (pH≥8.0). [25,26] Most studies on Al adsorption from water are focused on the investigation of the adsorption capacity of various organic-based materials in acidic aqueous solutions. [27][28][29] The number of studies investigating the effect of ions that are common in the natural water bodies, such as SO 4 2− , NO 3 − , Cl − , Ca 2+ , and Mg 2+ , on Al removal by adsorption are also limited.…”