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 Optimisation of durian peel based activated carbon preparation conditions for dye removal

2013 ◽  
Vol 16 (1) ◽  
pp. 22-31
Author(s):  
Phung Thi Kim Le ◽  
Kien Anh Le
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Surface Area ◽  
Dye Removal ◽  
Activated Carbons ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Impregnation Ratio ◽  
Carbon Production ◽  
Removal Capacity

Agricultural wastes are considered to be a very important feedstock for activated carbon production as they are renewable sources and low cost materials. This study present the optimize conditions for preparation of durian peel activated carbon (DPAC) for removal of methylene blue (MB) from synthetic effluents. The effects of carbonization temperature (from 673K to 923K) and impregnation ratio (from 0.2 to 1.0) with potassium hydroxide KOH on the yield, surface area and the dye adsorbed capacity of the activated carbons were investigated. The dye removal capacity was evaluated with methylene blue. In comparison with the commercial grade carbons, the activated carbons from durian peel showed considerably higher surface area especially in the suitable temperate and impregnation ratio of activated carbon production. Methylene blue removal capacity appeared to be comparable to commercial products; it shows the potential of durian peel as a biomass source to produce adsorbents for waste water treatment and other application. Optimize condition for preparation of DPAC determined by using response surface methodology was at temperature 760 K and IR 1.0 which resulted the yield (51%), surface area (786 m2/g), and MB removal (172 mg/g).

Removal of Methylene Blue by Adsorption Process - A Comparative Study

2011 ◽  
Vol 699 ◽  
pp. 245-264 ◽  
Author(s):  
A. Xavier ◽  
J. Gandhi Rajan ◽  
D. Usha ◽  
R Sathya
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Adsorption Process ◽  
Activated Carbons ◽  
Low Cost ◽  
Kinetic Equations ◽  
Dye Adsorption ◽  
Industrial Wastes ◽  
Blue Dye ◽  
Molecular Formula

Methylene blue is a heterocyclic aromatic chemical compound with the molecular formula C16H18N3SCl. It has used in the biology and chemistry field. At room temperature, it appears as a solid, odourless dark green powder that yields blue solution when dissolved in water. As a part of removal of methylene blue dye from textile and leather industrial wastes, using activated carbon as adsorbents namely, commercial activated carbon (CAC), rose apple carbon (RAC), coconut shell carbon (CSC) and saw dust carbon (SDC). The percentage of Methylene blue adsorbed increases with decrease in initial concentration and particle size of adsorbent and increased with increase in contact time, temperature and dose of adsorbents. The pH is highly sensitive for dye adsorption process. The adsorption process followed first order kinetics and the adsorption data the modeled with Freundlich and Langmuir isotherms. The first kinetic equations like Natarajan Khalaf, Lagergren, Bhattacharya and Venkobhachar and intra particle diffusion were found to be applicable. A comparative account of the adsorption capacity of various carbons has been made. These activated carbons are alternative to commercial AC for the removal dyes in General and MB is particular. These results are reported highly efficient and effective and low cost adsorbent for the MB. The thermodynamics parameters are also studied and it obeys spontaneous process. The results are confirmed by before and after adsorption process with the help of the following instrumental techniques viz., FT-IR, UV-Visible Spectrophotometer and SEM photos.

scholarly journals APPLICATIONS OF ACTIVATED CARBON IN WASTE WATER TREATMENT AS A LOW COST MEDIA

2021 ◽  
Vol 5 (11) ◽  
Author(s):  
R.P.K Dasanayaka
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Activated Carbons ◽  
Low Cost ◽  
Agricultural Waste ◽  
Waste Water Treatment ◽  
Activation Process ◽  
Untreated Wastewater ◽  
Recovery Methods

Environmental pollution caused by the anthropogenic activities is a global challenge. Pollution due to discharge of untreated wastewater, contributes to it considerably. High expenditures for the treatment technologies can be considered as one of the major reason for improper wastewater discharge. Activated carbon provides an excellent solution for this issue as it can be used as a low cost wastewater treatment adsorbent. This paper review, types of activated carbon, their applications and recovery methods in wastewater treatment. Activated carbon from conventional waste such as agricultural waste, woody waste and non conventional waste such as municipal waste can be used as a low cost media for waste water purifications. Physical and chemical processes are used to improve the adsorption property of the activated carbon. H3PO4, KOH and ZnCl2 are the most frequently used chemicals for the activation process. Granular activated carbon, powdered activated carbon, activated carbon fibers and carbon clothes are the major physical forms of the activated carbon. These physical forms are important to maximize the adsorption process according to the purpose of usage. Activated carbon is used to remove heavy metals, dyes, COD, BOD, organic contaminants and volatile organic compounds in the waste water. Various recovery methods are applied to regenerate activated carbons. Among them, chemical, thermal, and bio regeneration methods are examined. Strengths, weaknesses, opportunities, threats related to use of activated carbon and future research priority areas are also discussed

Activated carbons from waste of oil-palm kernel shells, sawdust and tannery leather scraps and application to chromium(VI), phenol, and methylene blue dye adsorption

2015 ◽  
Vol 73 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Sergio Montoya-Suarez ◽  
Fredy Colpas-Castillo ◽  
Edgardo Meza-Fuentes ◽  
Johana Rodríguez-Ruiz ◽  
Roberto Fernandez-Maestre
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Specific Surface ◽  
Activated Carbons ◽  
Low Cost ◽  
Palm Kernel ◽  
Dye Adsorption ◽  
Water Remediation ◽  
Blue Dye ◽  
Methylene Blue Dye

Phenol, chromium, and dyes are continuously dumped into water bodies; the adsorption of these contaminants on activated carbon is a low-cost alternative for water remediation. We synthesized activated carbons from industrial waste of palm oil seed husks (kernel shells), sawdust, and tannery leather scraps. These materials were heated for 24 h at 600, 700 or 800°C, activated at 900°C with CO2 and characterized by proximate analysis and measurement of specific surface area (Brunauer–Emmett–Teller (BET) and Langmuir), and microporosity (t-plot). Isotherms showed micropores and mesopores in activated carbons. Palm seed activated carbon showed the highest fixed carbon content (96%), and Langmuir specific surface areas up to 1,268 m2/g, higher than those from sawdust (581 m2/g) and leather scraps (400 m2/g). The carbons were applied to adsorption of Cr(VI), phenol, and methylene blue dye from aqueous solutions. Phenol adsorption on activated carbons was 78–82 mg/g; on palm seed activated carbons, Cr(VI) adsorption at pH 7 was 0.35–0.37 mg/g, and methylene blue adsorption was 40–110 mg/g, higher than those from sawdust and leather scraps. Activated carbons from palm seed are promising materials to remove contaminants from the environment and represent an alternative application for vegetal wastes instead of dumping into landfills.

Methylene Blue Dye Adsorption to Durian Shell Activated Carbon

2013 ◽  
Vol 594-595 ◽  
pp. 350-355 ◽  
Author(s):  
Erny Haslina Abd Latib ◽  
Melissa Suraya Mustfha ◽  
Suriati Sufian ◽  
Ku Zilati Ku Shaari
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Activated Carbons ◽  
Chemical Activation ◽  
Waste Water Treatment ◽  
Research Work ◽  
Dye Adsorption ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Physical And Chemical

A low cost adsorbent for waste water treatment can be achieved by producing an activated carbon from agriculture waste. In this research work, the activated carbons were prepared from durian shell using the physical and chemical activation at different concentrations of hydrogen peroxide followed by carbonization at high temperature under the flow of nitrogen gas. The produced activated carbon was characterized to obtain the physical and chemical properties. The adsorption of methylene blue dye has been studied in this experiment and the results showed that the efficiency of dye removal was increased for the treated durian shell as compare to the untreated one. It is found that 99% of methylene blue has been removed using durian shell activated carbon (DShAC) that treated at the conditions 0.6M H2O2at 700°C for 30 minutes.

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.

Modification of activated carbons by HNO3 and H2O2 for removal of methylene blue dye from aqueous solutions

2018 ◽  
Vol 114 ◽  
pp. 297-306
Author(s):  
Liheng Liu ◽  
Hua Lin ◽  
Fei Pan ◽  
Geng Wang, ◽  
Dunqiu Wang
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Activated Carbons ◽  
Blue Dye ◽  
Methylene Blue Dye

Efficiency of almond gum as a low-cost adsorbent for methylene blue dye removal from aqueous solutions

2015 ◽  
Vol 74 ◽  
pp. 903-911 ◽  
Author(s):  
Fatma Bouaziz ◽  
Mohamed Koubaa ◽  
Fatma Kallel ◽  
Fatma Chaari ◽  
Dorra Driss ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Low Cost ◽  
Blue Dye ◽  
Methylene Blue Dye
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