Kinetic, isothermal and thermodynamic investigation on electrocoagulation of Congo Red dye removal from synthetic wastewater using aluminium electrodes

High-Efficiency Removal of Lead and Nickel Using Four Inert Dry Biomasses: Insights into the Adsorption Mechanisms

“…Therefore, the identification of these functional groups in bioadsorbents holds significant importance [50]. Fourier Transform Infrared (FTIR) analysis is a technique used to study the functional groups present in bioadsorbents through the peaks at characteristic frequencies that correspond to different functional groups [51]. The FTIR of the bioadsorbents indicated the presence of various functional groups, as shown in Figure 3.…”

Synthesis of adsorbents from wheat hulls, extracted cellulose and modified with Cetyl trimethyl ammonium chloride to remove Congo Red in aqueous solution

“…From the results obtained, it is established that the interaction between the increase of the initial concentration and the decrease of the adsorbent dose has a positive effect on the removal efficiency of Rojo Congo on WH; this is due to the fact that the initial concentration works as a driving force in the process, increasing the mass transfer and diffusive phenomena from the solution to the adsorbent. (Ramya Sankar et al, 2018). Regarding the WHC, it was determined that the decrease of the initial concentration favors the removal efficiency of the material; this could be because the WHC does not have many active adsorption sites of Congo Red available, due to its anionic nature due to the presence of hydroxyl, carboxyl, carbonyl and amino groups, detected in the FTIR (Figure 2) (Wekoye et al, 2020).…”

Precipitation of (Mg/Fe-CTAB) - Layered double hydroxide nanoparticles onto sewage sludge for producing novel sorbent to remove Congo red and methylene blue dyes from aqueous environment

“…To prevent the influx of dyes to the water resources is paramount issue from environmentally view point. There is a number of traditional physicochemical and biological methods (Allègre et al, 2006;Arslan-Alaton et al, 2009;Bedah and Faisal, 2020;Davies et al, 2009;Naushad et al, 2019;Sankar et al, 2018) that can be applied for removing of dyes from industrial effluents. Because of the stability of modern dyes and high degree of organics present in their molecules, the mentioned methods may be ineffective in the elimination of such compounds.…”