Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Abstract

Textile industries generate large quantities of dye containing wastewater which pose a serious environmental problem. Currently, biosorbents have become desirable for the removal of dyes from textile effluents. In this study, batch experiments were conducted to investigate the biosorption characteristics of cactus peel on the removal of reactive red dye from aqueous solutions. The effects of solution pH, biosorbent dosage, contact time, and initial concentration were studied. The interaction effects of process variables were analysed using response surface methodology. The results showed that removal efficiency increased as initial dye concentration and solution pH decreased and as biosorbent dosage and contact time increased. The highest removal efficiency (99.43%) was achieved at solution pH, initial dye concentration, biosorbent dose, and contact time of 3.0, 40 mg/l, 6 g, and 120 min, respectively. From regression analysis, the Langmuir isotherm was found to better (R2 = 0.9935) represent the biosorption process as compared with the Freundlich isotherm (R2 = 0.9722). Similarly, the pseudo-second-order model was seen to represent very well the biosorption kinetics. The results show that cactus peel has good potential for the removal of reactive red dye.

Isothermal Modelling of the Adsorption of Cibacron Blue onto Bean Peel

“…The Langmuir constant was utilized to calculate the maximum adsorption capacity QmL (mg/g) which gave a value of 27.83 mg/g (95% confidence interval from 23.69 to 31.98). The Langmuir isotherm is among the most cited best isothermal models to govern biosorption of xenobiotics followed by the Freundlich model [20][21][22][23][24][25][26][27]. The Langmuir model was the best model for the biosorption of Cibacron Blue by inactive mycelial biomass of Panus fulvus [28] while both the Langmuir and Freundlich models were found to be the best for Cibacron Blue sorption by activated sludge [29].…”

Banana Stem (Musa balbisiana Colla) as Potential Biosorbent to Remove Methylene Blue Dye in Wastewater: Isotherm, Kinetic, Thermodynamic Studies and Its Application

“…Several studies related to biosorption have been carried out using several biosorbents such as pensi shell [18], leaf dregs of lemongrass [19], lemongrass leaves biowaste [20], Eichhornia crassipes (Mart.) Solms [21], microalgae (Chlorella vulgaris) [22], prosopis cineraria [23], green seaweed [24], watermelon [25], cactus peel [26], chia seeds [27], coffee grounds [28], and Terminalia catappa shell [29].…”

Color Adsorption Performance of Bone Biocomponent for Textile Dyeing Effluent Treatment in Ethiopia

“…Te physicochemical methods such as photocatalysis [15], focculation/coagulation [16][17][18], sonication, sludge adsorption [19], ion exchange [20,21], activated carbon adsorption [22][23][24], ozonation [25,26], irradiation, and electrochemical oxidation [27,28] were well studied for small scale industries. Te biological approaches [29][30][31][32] of treatment using fungi [33], algae, yeast, bacteria, plants [34][35][36], and animal [37] wastes were considered as costefective, sustainable, and environmentally benefcial approach [38][39][40] while being specifc in use. Among animal wastes, bovine bones were abundantly available wastes which creates nonhealthy environment [41] and also increases with the increase of meat consumption [42].…”