scholarly journals Efficient Removal of Methyl Orange and Rhodamine-B Dyes with Low Cost Banana Peel Activated Carbon

2020 ◽  
Vol 32 (5) ◽  
pp. 1121-1127
Author(s):  
Mahesh Kumar Gupta ◽  
P.K. Tandon ◽  
Neelam Shukla ◽  
Harendra Singh ◽  
Shalini Srivastava
Keyword(s):  
Activated Carbon ◽  
Methyl Orange ◽  
Rhodamine B ◽  
Low Cost ◽  
Banana Peel ◽  
Duration Of Treatment ◽  
Wide Range ◽  
Before And After ◽  
Efficient Adsorbent ◽  
Solution Changes

Acid activated carbon obtained from cheap, non-toxic and locally available banana peel was used as a low cost and efficient adsorbent for the removal of dyes methyl orange and rhodamine-B from the aqueous solution. Changes in the resulting material before and after activation and after treatment were studied by different techniques, such as SEM-EDX, XRD, FTIR measurements. Effects of duration of treatment, amount of banana peel activated carbon, pH, and initial methyl orange and rhodamine-B concentration, on the removal of dye were studied to get optimum conditions for maximum dye removal. Removal efficiency of the activated ash remains almost constant in a wide range of pH from 2.5 to 5.6. In 75 min at room temperature removal of 98.5 % methyl orange (anionic) and 99.0 % rhodamine-B (cationic) dyes with 0.1 g and 0.125 g, respectively was obtained from the contaminated water having 10 ppm dye concentration.

scholarly journals Hydrothermal Energy Systems Development in the USA

1997 ◽  
Author(s):  
Radon Tolman ◽  
Ronald C. Timpe
Keyword(s):  
Activated Carbon ◽  
Steam Generator ◽  
Low Cost ◽  
Energy Systems ◽  
Combined Cycle ◽  
Operating Conditions ◽  
Federal State ◽  
Supercritical Conditions ◽  
Wide Range ◽  
The Usa

A revolutionary hydrothermal steam generator is being developed by a federal, state university and industry partnership in the US to enhance economic growth and trade. The new generator is designed to accept solutions and slurries without corrosion and deposition on heat transfer surfaces up to the supercritical conditions of water, above 221 bar (3205 psia) and 374 C (705 F). The generator will produce steam from low quality water, such as from geothermal sources, for increased electric power generation. Water treatment costs and effluents will be eliminated for “zero discharge.” To improve efficiency and limit carbon dioxide and other emissions, the new steam generator will be tested for converting wastewater slurries of low-cost fuels and “negative value” wastes such as hazardous wastes, composted municipal wastes and sludges, to clean gas turbine fuel, hydrocarbon liquids, and activated carbon. Bench-scale results at sub- and supercritical conditions for lignite, refuse derived fuel, tire rubber and activated carbon are presented. An advanced continuous-flow pilot plant is being designed to test the generator over a wide range of operating conditions, including slurry feed up to 30 percent solids. Demonstration of the hydrothermal steam generator will be followed by design and construction of combined-cycle energy systems.

scholarly journals Preparation of Composite Banana Peel-TiO2 for Methyl Orange Dyes Removal

2021 ◽  
Vol 2080 (1) ◽  
pp. 012030
Author(s):  
Hui Ling Teoh ◽  
Siti Aida Ibrahim ◽  
Ainun Rahmahwati Ainuddin ◽  
Rosniza Hussin ◽  
Kamdi Zakiah
Keyword(s):  
Activated Carbon ◽  
Methyl Orange ◽  
Morphological Analysis ◽  
Irradiation Time ◽  
Group Formation ◽  
Sol Gel ◽  
Banana Peel ◽  
Wastewater Remediation ◽  
X Ray Diffraction ◽  
Dye Pollution

Abstract Composite banana peel activated carbon-TiO2 has successfully prepared using the sol-gel method. In this research, banana peel was activated using KOH activator. This study aimed to compose biomass wastes (banana peels) with TiO2 catalyst for Methyl Orange (MO) dye removal. The banana peel-activated carbon (BPAC) composition varied from 20, 50 and 70 wt. %. The prepared samples were calcined at 400 °C for 4 h. The structure and properties of the prepared samples were characterized by X-ray Diffraction (XRD), Fourier Transmission Infra-Red (FTIR), Scanning Electron Microscope (SEM) and Ultraviolet-Visible Spectrophotometer (UV-Vis). The results obtained from XRD showed the presence of anatase, rutile and potassium formate. The morphological analysis TiO2 showed agglomeration whereas pores were observed in BPAC. FTIR results indicated a C-O stretching and CH functional group formation through a modification that it does not exhibit in pure TiO2. The sample with 50 wt% BPAC-TiO2 has the highest MO removal (72.5%) within 3 h of irradiation time. From the current finding, banana peel-activated carbon-TiO2 can be commercialized for wastewater remediation especially in treating dye pollution.

Exploration of hydrogen-bonded organic framework (HOF) as highly efficient adsorbent for rhodamine B and methyl orange

2022 ◽  
Vol 330 ◽  
pp. 111624
Author(s):  
Jinyue Yang ◽  
Jingkang Wang ◽  
Xiunan Zhang ◽  
Miao Chen ◽  
Beiqian Tian ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Rhodamine B ◽  
Highly Efficient ◽  
Efficient Adsorbent ◽  
Organic Framework ◽  
Hydrogen Bonded

Dynamic Study of Adsorption for the Removal of Bismark Brown – Using Activated Carbons

2011 ◽  
Vol 671 ◽  
pp. 187-204
Author(s):  
A. Xavier ◽  
R Sathya ◽  
J. Gandhi Rajan ◽  
R. Nagarathnam
Keyword(s):  
Activated Carbon ◽  
Adsorption Process ◽  
Activated Carbons ◽  
Low Cost ◽  
Kinetic Equations ◽  
Dye Adsorption ◽  
Industrial Wastes ◽  
Isotherm Models ◽  
Before And After ◽  
Intra Particle Diffusion

Many industries use dyes and pigments to colorize their products. Large amount different types of dyes enter in to the environment. These dyes are invariably left in the industrial wastes. As a part of removal of Bismark Brown 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 removal of Bismark-Brown adsorbed increases with decrease in initial concentration and particle size of adsorbent and increased with increase in contact time, temperature and dose of adsorbent. The pH is highly sensitive for dye adsorption process. The adsorption process followed first order kinetics and the adsorption data with Freundlich and Langmuir isotherm models. 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 Bismark-brown (BB) is particular. These results are reported highly efficient and effective and low cost adsorbent for the BB. 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 analyze.

Performance of Activated Carbon Made from Gigantochloa verticillata Bamboo for Biogas Purification

2020 ◽  
Vol 1013 ◽  
pp. 75-80
Author(s):  
I Putu Hari Wangsa ◽  
Tjokorda Gde Tirta Nindhia ◽  
Dewa Ngakan Ketut Putra Negara ◽  
I Wayan Surata
Keyword(s):  
Activated Carbon ◽  
Activated Carbons ◽  
Low Cost ◽  
Raw Material ◽  
Particle Sizes ◽  
Nitrogen Gas ◽  
Thermo Gravimetric ◽  
Natural Sources ◽  
Before And After ◽  
Biogas Purification

Biogas is known to contain mainly methane (CH4), and other gas impurities such as carbon dioxide (CO2), and hydrogen sulfide (H2S). Biogas should be purified to remove gas impurities prior to be used as a fuel. Activated carbon is a famous biogas purifier. Commercial activated carbons are found expensive due to high cost during production. New routes for low cost production of activated carbon are still in progress. Many natural sources were explored for production of low cost and good quality activated carbon. One of the natural sources of raw material of activated carbon is bamboo. The bamboo from species of Gigantochloa verticillata from the tropical source of Indonesia was prepared for this purpose. The bamboo was cut from the tree, dried under the sun and cut to small pieces. The dried small pieces of bamboo cut were carbonized at 700 °C for 1.5 hours in air-tight chamber made from steel. The sample then was crushed and screen in 3 different particle sizes, namely: 150-250 mesh, 250-350 mesh and 350-450 mesh. About 100 gram of carbonized bamboo from these three variations were activated at 750°C for 1 hour in around 5100 cm3 steel chamber with nitrogen gas (N2) was flowed with rate 350 ml/minute. The result of activated carbon were analyzed by using TGA (thermo gravimetric analyses) for moisture, volatile, ash and fixed carbon composition test. The activated carbon then was set in acrylic tube for biogas purification. Around 200 liters of raw biogas were collected in PVC bag. The biogas was flowed with flow rate 500 mL/minute. The biogas composition before and after passing the activated carbon was measured in three time repetitions. The results indicate that the activated carbon made from Gigantochloa verticillata bamboo developed in this work is promising biogas purifier.

scholarly journals Adsorptive removal of methyl orange and methylene blue from aqueous solutions with Acacia crassicarpa activated carbon

2021 ◽  
Vol 63 (4) ◽  
pp. 23-27
Author(s):  
Tue Ngoc Nguyen ◽  
◽  
Khanh Quoc Dang ◽  
Duc Trung Nguyen ◽  
◽  
...  
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Methyl Orange ◽  
Aqueous Solutions ◽  
Langmuir Isotherm ◽  
Low Cost ◽  
Scale Up ◽  
Anionic Dyes ◽  
Experimental Conditions ◽  
Acacia Crassicarpa

In this study, activated carbon prepared from Acacia crassicarpa barkwas prepared and studied for the potential development of low-cost, carbon-based adsorbents that remove industrial dyes from aqueous solutions. Various spectroscopy techniques and surface analyses were used to characterize the adsorbents. The adsorption of methyl orange (MO) and methylene blue (MB) onto the material was investigated under optimal experimental conditions including temperature, adsorbent dosage, and initial concentration of chemicals. The Langmuir isotherm model was observed to fit the adsorption data well. The maximum adsorption capacities predicted by the Langmuir isotherm were found to be 10.36 mg.g-1 for MO and 15.34 mg.g-1 for MB. The adsorbents were better able to remove the cationic dye than the anionic dye. The results of this study will be useful for future scale-up production of low-cost adsorbents using Acacia crassicarpa for the removal of cationic and anionic dyes.

Copper Removal from Synthetic Water by Using Rice Husk Activated Carbon

2021 ◽  
Vol 02 (01) ◽  
Author(s):  
Alia Farhana Malik ◽  
◽  
Nuramidah Hamidon ◽  
Keyword(s):  
Activated Carbon ◽  
Rice Husk ◽  
Sodium Hydroxide Solution ◽  
Low Cost ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Carbon Intensity ◽  
Before And After ◽  
Water And Wastewater ◽  
Synthetic Water

One of the most efficient ways of replacing the existing traditional technique is the application of low-cost adsorbent. Rice husk (RH) is an abundant and inexpensive material and can be processed for various applications into activated carbon (AC). In the past couple of years, AC has also been used as an adsorbent. In addition, AC has wider used, such as removing water and wastewater from different contaminants. In this analysis, the raw rice husk for removing copper from synthetic water is treated and modified as activated carbon for copper (II). Using alkaline sodium hydroxide solution, NaOH, which has a different adsorbent dosage, rice husk was prepared. The parameters to be tested before and after the absorption process are pH, turbidity, total suspended solid, and dissolved oxygen (DO) of the synthetic water. The result obtained indicates that different dosages of adsorbent have different effects on the consistency of the water. The adsorbent dose used was 0.6g, 1.6g, 2.6g, 3.6g, and 4.6g, respectively. In short, an effort has been made on using rice husk as an adsorbent, as the major parts of the adsorbent were lignin and silica, which encouraged the adsorption process. Based on the previous rice husk activated carbon results, this has been verified that the activated carbon intensity will extract copper from the water sample.

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