Empirical Equilibrium Study on Rice Husk and Eggshells as Low Cost Bioadsorbent for the Methylene Blue Removal

2014 ◽  
Vol 699 ◽  
pp. 221-226
Author(s):  
Nurul Hanim Razak ◽  
Md. Razali Ayob ◽  
M.A.M. Zainin ◽  
M.Z. Hilwa
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Low Cost ◽  
Agricultural Waste ◽  
Textile Wastewater ◽  
Blue Dye ◽  
Rice Husks ◽  
Equilibrium Study ◽  
Porosity Characterization

Eggshells and rice husk, two types of notable agricultural waste were used as bioadsorbent to remove Methylene Blue dye (MBD) in aqueous solution. This study was to investigate the performance of these two bioadsorbents in removing MBD. The removal percentage, adsorption capacity, and porosity characterization were examined. The method applied was a physical filtration. UV-VIS Spectrophotometer was used to determine the efficiency of the bioadsorbents in MBD adsorption. The highest removal percentage at the most concentrated MBD were 51% and 98% for eggshells and rice husks respectively. Meanwhile the characterization of rice husks pore size and volume proves that higher adsorptivity towards dye compares to eggshells porosity. It was concluded that the eggshells and rice husks bioadsorbents was successful to treat industrial textile wastewater with rice husks as the most efficient bioadsorbent in removing MBD.

scholarly journals Removal of Methylene Blue from Waste Water Using Activated Carbon Prepared from Rice Husk

2012 ◽  
Vol 60 (2) ◽  
pp. 185-189 ◽  
Author(s):  
Mohammad Arifur Rahman ◽  
S. M. Ruhul Amin ◽  
A. M. Shafiqul Alam
Keyword(s):  
Waste Water ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Aqueous Solutions ◽  
Rice Husk ◽  
Flow Rate ◽  
Activated Carbons ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Blue Dye

The possible utilization of rice husk activated carbon as an adsorbent for the removal of methylene blue dye from aqueous solutions has been investigated. In this study, activated carbons, prepared from low-cost rice husk by sulfuric acid and zinc chloride activation, were used as the adsorbent for the removal of methylene blue, a basic dye, from aqueous solutions. Effects of various experimental parameters, such as adsorbent dosage and particle size, initial dye concentration, pH and flow rate were investigated in column process. The maximum uptakes of methylene blue by activated rice husk carbon at optimized conditions (particle sizes: 140 ?m; Flow rate: 1.4 mL/min; pH: 10.0; initial volume of methylene blue: 50 mL and initial concentration of methylene blue: 4.0 mg/L etc.) were found to 97.15%. The results indicate that activated carbon of rice husk could be employed as low-cost alternatives to commercial activated carbon in waste water treatment for the removal of basic dyes. This low cost and effective removal method may provide a promising solution for the removal of crystal violet dye from wastewater.DOI: http://dx.doi.org/10.3329/dujs.v60i2.11491 Dhaka Univ. J. Sci. 60(2): 185-189, 2012 (July)

scholarly journals Diatomite Chemical Activation for Effective Adsorption of Methylene Blue Dye from Model Textile Wastewater

2021 ◽  
Vol 12 (1) ◽  
pp. 23-28
Author(s):  
Parisa Ebrahimi ◽  
◽  
Anand Kumar
Keyword(s):  
Methylene Blue ◽  
Surface Characterization ◽  
Dye Removal ◽  
Low Cost ◽  
Chemical Activation ◽  
Textile Wastewater ◽  
Blue Dye ◽  
Dye Wastewater ◽  
Experimental Conditions ◽  
Basic Solutions

Dye wastewater produced in textile industries is a warning issue that threatens the environment due to discharge into the waterway. This study reviewed the adsorption of Methylene Blue (MB), as a toxic dye, onto diatomite adsorbent. A series of chemical modifications were examined by impregnating diatomite into various acidic and basic solutions to obtain the most active sample with the highest capacity. Both raw diatomite (RD) and modified diatomite (MD) were analyzed under different experimental conditions, such as PH, contact time, the dose of adsorbent to attain the optimum quantities of each in which adsorption capacity and removal percentage were in their highest amount. FESEM analysis indicated the surface characterization and the morphology of both adsorbents. The results of batch experiments showed that the equilibration removal capacities of MB under the optimum condition were 72 mg/g for RD and 127 mg/g for MD. Overall results suggested that due to the low-cost, naturally available, simple treatment methods and materials, and sustainability, the modified adsorbent has the potential for dye removal in the practical process.

scholarly journals Sorption of Methylene Blue Dye from Aqueous Solution Using an Agricultural Waste

2017 ◽  
Vol 03 (01) ◽  
Author(s):  
Seghier Abdelkarim ◽  
Hadjel Mohammed ◽  
Benderdouche Nouredine
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Agricultural Waste ◽  
Blue Dye ◽  
Methylene Blue Dye

scholarly journals Synthesis and Characterization of Ag@C-TiO2 Nanocomposite for Degradation of Sasirangan Textile Wastewater

2019 ◽  
Vol 22 (6) ◽  
pp. 299-304
Author(s):  
Heny Puspita Dewi ◽  
Joko Santoso ◽  
Nur Firda Trianda ◽  
Rodiansono Rodiansono
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Textile Wastewater ◽  
Band Gap Energy ◽  
Tio2 Photocatalyst ◽  
Composite Photocatalysts ◽  
Xrd Patterns ◽  
Brookite Phase

Carbon-titanium oxide nanocomposite (denoted as @C-TiO2) was successfully synthesized via hydrothermal method at 150°C for 24 h. The C-TiO2 nanocomposite was furtherly modified by adding an Ag metal dopant (denoted as Ag@C-TiO2) to improve and applied to the photocatalytic degradation of Sasirangan textile wastewater. The composite photocatalysts were characterized by XRD and UV–Vis DRS spectroscopies. XRD patterns showed that TiO2 in @C-TiO2 mainly consisted of a brookite phase, as indicated by a series sharp diffraction peak at 2θ = 27.2° (111), 31.5° (121) and 55.9° (241). The calculated band gap energy (Eg) derived from UV-Vis DRS spectra for TiO2, @C-TiO2, and Ag@C-TiO2 were 2.95 eV, 2.54 eV, and 2.74 eV, respectively. Ag@C-TiO2 photocatalyst was found to be active for the photocatalytic degradation of Sasirangan textile wastewater, as indicated by the change of wastewater color from dark to clear. The quantitative photocatalytic activity of Ag@C-TiO2 was evaluated in the degradation of methylene blue, whereas the conversion of methylene blue was 41.3%. The addition of Ag to @C-TiO2 is believed to play an essential role in the enhancement of photocatalytic activity.

A Study on Absorption Coefficient of Sustainable Acoustic Panels from Rice Husks and Sugarcane Baggase

2015 ◽  
Vol 1113 ◽  
pp. 198-203 ◽  
Author(s):  
Farrah Zuhaira Ismail ◽  
Mohamad Nidzam Rahmat ◽  
Norishahaini M. Ishak
Keyword(s):  
Absorption Coefficient ◽  
Rice Husk ◽  
Sound Absorption ◽  
Phenol Formaldehyde ◽  
Agricultural Waste ◽  
Rice Husks ◽  
Porosity Level ◽  
Agriculture Waste ◽  
Single Piece ◽  
Sound Reduction

Noise has detrimental effects on human lives and it is a nuisance to the environment. As many of the available sound reduction materials in the current market are hazardous, there are demands for alternative sustainable materials to reduce the noise problem. Therefore, the aim of this research is to study the potential of using an agricultural waste as sound absorption panel. For the purpose of this study, the combination of two materials was under studied; rice husks and sugarcane baggase. There were two main objective of the research; first is to develop absorption panels from the combination of rice husks and sugarcane baggase at different percentage of mixture. Second objective is to identify the absorption rate of the panels. The study encompasses the fabrication of the sustainable sound panels using the rice husk and sugarcane fibre and bond using Phenol formaldehyde (PF). Five panels of sized 12 inch x 12 inch and 12 mm thick were fabricated. The absorption coefficient of the samples was done at the acoustic lab, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia (UKM), Bangi. The panels were tested using an impedance tube. The procedure of the test was carried out in accordance with ISO 10534-2:1998 standards. Based on the results, sample 1 gave the highest absorption coefficient compared to sample 2, 3, 4 and 5. It can be concluded that the acoustic panel made from a mixture of 100% rice husks had higher absorption co-efficient compared to the performance of the other samples given the fact that the characteristic of the rice husks which has air gap in every single piece of rice husk. The spongy properties of the sample 1 panel has created many void spaces which encouraged more sound absorption capability due to the porous surface of the panel. Sound absorption is very much affected by the availability of porosity level of the panel. Thus, further studies on other potential materials from waste should be conducted.Keywords. Noise, Agriculture waste, sound, absorption panels, absorption co-efficient

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