Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects (original) (raw)
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Adsorption-based Cationic Dyes using the Carbon Active Sugarcane Bagasse
Procedia Environmental Sciences, 2011
The use of activated carbon made of sugarcane bagasse, to eliminate cationic dyes present in waste water was studied in this research. It investigates the potential use of activated carbon made of sugarcane bagasse. Increase in the PH of the dye solution caused an equivalent increment in its adsorption efficiency. This study demonstrates that activated carbon made from sugarcane bagasse is an efficient and cheap adsorbing agent and very effective at removing dyes present in solutions and the possibility of using it for a simple and inexpensive method of dye removal from waste waters in either stirred tank reactors or in batch reactors. The data obtained could be utilised to design an optimally productive system that uses either stirred tank reactors or batch reactors remove of cationic dyes from effluents industrial. This study predicts effect of activated carbon made from sugarcane bagasse on adsorption of cationic dyes.
Dye Removal from Aqueous Solution by using Adsorption on Treated Sugarcane Bagasse
2005
The use of cheap and ecofriendly adsorbents have been studied as an alternative substitution of activated carbon for the removal dyes from wastewater. Adsorbents prepared from sugarcane baggase-an agro industries waste were successfully used to remove the methyl red from an aqueous solution in a batch reactor. This study investigates the potential use of sugarcane baggase, pretreated with formaldehyde (PCSB) and sulphuric acid (PCSBC), for the removal of methyl red from simulated wastewater. Formaldehyde treated and sulphuric acid treated sugarcane bagasse were used to adsorb methyl red at varying dye concentration, adsorbent dosage, pH and contact time. Similar experiment was conducted with commercially available powdered activated carbon (PAC), in order to evaluate the performance of PCSB and PCSBC. The adsorption efficiency of different adsorbents was in the order PAC>PCSBC>PCSB. The initial pH of 6-10 flavours the adsorption of both PCSB and PCSBC. Adsorbents are very efficient in decolorized diluted solution. It is proposed that PCSB and PCSBC, in a batch or stirred tank reactors could be employed as a low cost alternative in wastewater treatment for the dyes removal.
Cationic Dye Removal By Sugarcane Bagasse Activated Carbon From Aqueous Solution
Global Nest Journal, 2015
Low cost agricultural waste adsorbents can be viable alternatives to activated carbon for the treatment of contaminated wastewater. Sugarcane Bagasse, an abundant agriculture waste in Egypt, was used in the present study to prepare activated carbon. Batch adsorption experiments were conducted to study its effectiveness to remove cationic dye methylene blue from aqueous solution. The effects of initial dye concentrations, agitation time, solution pH and temperature on methylene blue dye removal were investigated. The optimum pH value for the maximum percentage removal of the dye was 7. Adsorption isotherms were determined and modeled with Redlich-Peterson, Langmuir and Freundlich equations at 20ºC.The kinetic data were analyzed using Pseudo-first order, pseudo-second order. The mechanism of the adsorption process was determined from the intraparticle diffusion model. Thermodynamic parameters such as standard enthalpy (ΔH°), standard entropy (ΔS°) and free energy (ΔG°) were determined. The equilibrium data were best fitted to the Redlich-Peterson isotherm model .The adsorption kinetics was found to follow the pseudo-second-order kinetic model with good correlation coefficient. The positive ΔH • value indicated that the adsorption process was endothermic in nature. The results revealed sugarcane bagasse activated carboncould be employed as a low-cost alternative adsorbent in wastewater treatment.
Desalination, 2008
Bagasse pith, which is the main waste from sugarcane industry in Egypt, has been used as a raw material for the preparation of different activated carbons. Activated carbons were prepared from bagasse pith by chemical activation with 28% H 3 PO 4 (AC1), 50% ZnCl 2 (AC2) followed by pyrolysis at 600°C and by physical activation at 600°C in absence of air (AC3). Different activated carbons have been used for the removal of reactive orange (RO) dye from aqueous solutions. Batch adsorption experiments were performed as a function of initial dye concentration, contact time, adsorbent dose and pH. Adsorption data were modeled using the Langmuir and Freundlich adsorption isotherms. Adsorption kinetic data were tested using pseudo-first-order, pseudo-second-order and intraparticle diffusion models. Kinetic studies showed that the adsorption followed pseudo-second-order reaction with regard to the intraparticle diffusion rate.
The Use of Sugarcane Bagasse to Remove the Organic Dyes from Wastewater
International Journal of Analytical Chemistry, 2021
In the present study, the potential of sugarcane bagasse (SCB) was evaluated by methylene blue (MB) retention. The selected low-cost adsorbent was characterized by scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), BET method, and determination of the point of zero charge (pHzpc). Batch kinetic and isothermal studies were performed to examine the effects of contact time, initial dye concentration, adsorbent dose, pH, and temperature. The results show that the kinetic study of MB adsorption on sugarcane bagasse is very fast; the equilibrium is reached after only 20 minutes. The kinetic model of pseudo-second-order and the Langmuir isotherm model perfectly explain the adsorption process of MB with a monolayer adsorption capacity equal to 49.261 mg·g−1 activation parameters' values such as free energy (ΔG°), enthalpy (ΔH°), and entropy (ΔS°) also determined as −4.35 kJ·mol−1, −31.062 kJ·mol−1, ...
Polyethylenimine Modified Sugarcane Bagasse Adsorbent for Methyl Orange Dye Removal
Chemical engineering transactions, 2017
This study is investigated the potential of sugarcane bagasse, an agriculture waste as adsorbent for the removal of methyl orange dye from aqueous solution. Numerous research had been done in preparing low cost adsorbent from agricultural by-products. Activated carbon undoubtedly is the most prevailing adsorbent because of its high surface area adsorption capacity, and degree of surface reactivity. The activation process during preparation of activated carbon is normally been performed at high temperature (i.e. higher than 500 °C) and involved with a harsh chemical. This study investigated the potential of modified sugarcane bagasse with polyethylenimine (PEI) for removal of methyl orange (MO) dyes. The effect of PEI modified sugarcane bagasse adsorbent parameter on the efficiency of dyes removal including contact time, initial dye concentration, adsorbent dosage, temperature and pH have been investigated. The optimum result for MO dye removal achieve up to 82.0 % for parameters, co...
Egyptian Sugar Journal, 2019
The adsorption behavior of mordant yellow 12 (4-amino phenyl azo salicylic sodium salt) (MY12) from aqueous solutions using low cost adsorbent citric acid or tartaric acid treated Sugarcane bagasse (SCB) was carried out. The experimental results have been investigated according to Langmuir and Freundlich isotherms. The effect of initial concentration of the dye, biosorbent dosage, temperature, contact time and pH were involved in the experiments. It was reported that the maximum removal percentage of MY12 was 95.2 % at pH 2.8 and contact time 40 minutes. The removal percentage decreases, as the concentration of the dye increases. Similar trend was found with the pH factor. The maximum biosorption capacities qe of MY12 by SCB was 8.2 mg g-1. It was concluded that; bagasse can be used as an efficient adsorbent material for the removal of organic dyes from aqueous solutions.
Dye adsorption efficiency of chemically treated activated carbon based on sugarcane bagasse pith
2019
The adsorption capacity of a cationic dye (Methylene blue, MB) from aqueous solution onto activated carbon prepared from sugarcane bagasse pith (Saccharum Officinarum) has been investigated. Activated carbon is prepared from sugarcane bagasse pith (SBP) using chemical activation method. This method involves impregnation with ferric chloride followed by carbonization. Activated carbon FAC-1, FAC-2 and FAC-3 are prepared from sugarcane bagasse pith using different impregnation ratios (SBP: FeCl3). It is found that adsorption of dye is influenced by several parameters such as initial dye concentration, contact time, solution pH, adsorbent dosage and adsorption temperature. Equilibrium adsorption isotherms and physico-chemical properties of the modified pith are investigated. Experimental adsorption data is correlated with Langmuir, Freundlich and Temkin isotherm models. Results of equilibrium experiments indicate that adsorption of methylene blue onto FAC-1, FAC-2 and FAC-3 is better d...
Carbon: Science and Technology, 2017
Two activated carbon (AC) samples were produced from sugarcane bagasse using different chemical activation substances (H2SO4 and NaOH). The AC sample activated by H2SO4 presented enhanced surface properties compared to the NaOH activated sample, with higher specific surface area and porosity determined by BET and SEM analysis were also tested for methyl orange (MO) adsorption. The adsorption efficiency decreased as MO concentration increased. Experimental data including adsorption isotherms and the Gibbs free energy (ΔG°) thermodynamic potential were analysed. Adsorption experimental results agreed well with the Langmuir adsorption isotherm with a high correlation coefficient (R2) and the chemisorption process formed spontaneously adsorbed monolayers. Therefore, sugarcane bagasse waste was considered as a low cost precursor to prepare AC adsorbents with high pollutant removal efficiency through spontaneously adsorbed monolayers.
Removal of Dyes from Dye Effluent by Using Sugarcane Bagasse Ash as an Adsorbent
International Journal of Chemical Engineering and Applications, 2011
Sugar cane bagasse ash, an agricultural byproduct, acts as an effective adsorbent for the removal of dyes from aqueous solution. Batch adsorption study was investigated for the removal of Acid Orange-II from aqueous solution. Adsorbents are very efficient in decolorized diluted solution. The effects of bed depth on breakthrough curve, effects of flow rate on breakthrough curve were investigated. The removal of dyes at different flow rate (contact time), bed height, initial dye concentration, column diameter, pH & temperature by Sugarcane Bagasse Ash as an adsorbent has been studied. It is found that percent adsorption of dyes increases by decreasing flow rate from 2 lit/hr to 1 lit/hr, by increasing bed height from 15cm to 45cm, by decreasing initial conc.150mg/lit to 100mg/lit, by increasing column diameter from 2.54cm to 3.5cm,by maintaining neutral pH & at temperature 45ºc than 25ºc & 35ºc.The result shows that, bagasse ash is a good adsorbent for dye effluent treatment.