Batch Study, Kinetic and Equilibrium Isotherms Studies of Dye Adsorption of Jumputan Wastewater onto Betel Nuts Adsorbent

The Effect of Adsorbent Type and Ratio on Removal and Isotherm Adsorption of Methylene Blue

“…The approach to the adsorption isotherm can be explained by the Freundlich equation. If the concentration of solution in equilibrium is plotted as an ordinate and the concentration of the adsorbate in the adsorbent as abscissa in logarithmic coordinates, a gradient of n and intercept will be obtained [9,10,15,16]. The Freundlich isotherm model explains that the adsorption process on the surface is heterogeneous where not all adsorbent surfaces have adsorption power.…”

“…q e is the amount of adsorbate adsorbed (mg/g), K F is the Freundlich constant (l/mg), and n is adsorption constant. The constants of this model are calculated by The langmuir equation assumes that the surface of the adsorbent is homogeneous, and a site can only be occupied by one pollutant molecule [9], [10], [15], [16]. The Langmuir equation is written at equation (3).…”

“…The activated carbon that used as adsorbent to methylene blue (MB) degradation was fresh betel nut activated carbon (A), regenerated betel nut activated carbon (B), and coconut shell activated carbon (C). Activated carbon that produce from betel nut (Cyrtostachys lakka) was a potential adsorbent to remove methylene blue [9], COD, BOD, TSS, and color [10]. The regenerated betel nut activated carbon removed 98.98% of methylene blue (MB) with an adsorption capacity of 3.57 mg/g and adsorption isotherm followed the Langmuir model [9].…”

The Effect of Flowrate on Dye Removal of Jumputan Wastewater in a Fixed-Bed Column by Using Adsorption Model: Experimental and Breakthrough Curves Analysis

“…The result showed that the Adam-Bohart kinetic model has the lower values of R 2 (0.750-0.845) for CIP and (0.767-0.854) for NOR (Darweesh and Ahmed, 2017). Recently, research on kinetics adsorption model of Jumputan's liquid waste onto betel nuts activated carbon has also been done in a batch process (Cundari et al, 2018b). The analysis result that the adsorption follows pseudo-second-order kinetic with R 2 of .929 and k value of 0.00008 min -1 and Langmuir model with R 2 of 0.999 and maximum adsorption capacity of 12.99 mg/g (Cundari et al, 2018b).…”

“…Recently, research on kinetics adsorption model of Jumputan's liquid waste onto betel nuts activated carbon has also been done in a batch process (Cundari et al, 2018b). The analysis result that the adsorption follows pseudo-second-order kinetic with R 2 of .929 and k value of 0.00008 min -1 and Langmuir model with R 2 of 0.999 and maximum adsorption capacity of 12.99 mg/g (Cundari et al, 2018b). Researches on Jumputan's liquid waste with continuous adsorption process have been conducted but only analyzed for COD (Cundari et al, 2017), TSS and BOD parameters.…”