Removal of Cango Red Dye from Industrial Effluent Using Garlic Peel as a Bioadsobent (original) (raw)
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REMOVAL OF REACTIVE DYE FROM AQUEOUS SOLUTIONS USING ORANGE AND LEMON PEEL AS BIO-ADSORBENT
The adsorption of Eurozol Navy reactive dye was examined by orange and lemon peel powder considering several parameters as pH, contact time, speed of shaker, temperature and initial dye concentration, single and combined adsorbent dosage. Turbidity and dye extraction parameters also observed. The adsorption obeys both Langmuier and Freundlich isotherm. The removal percentages for orange and lemon peel are 81% and 87% respectively and 91% for combined adsorbent dosages.
Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental, 2021
With the great generation of colored effluents, several methods for the removal of the color are used, being one of them the method of adsorption in solid medium. In this paper, the in natura orange peel was used as the alternative biomass for the adsorption process of methylene blue, which was characterized by moisture content, pH, apparent density, iodine number, and methylene blue index. To determine the adsorptive capacity of the methylene blue dye, pH 7 was obtained as favorable, the adsorption process showed an adsorption of 82% of the methylene blue dye and a 10 min equilibrium time, where the Freundlich isotherm presented a better adaptation to the adsorption process in orange peel, with its maximum adsorption capacity of 3.9630 mg g-1, for the methylene blue dye.
REVIEW PAPER ON REMOVAL OF A DYE FROM AQUEOUS SOLUTION BY ADSORPTION
To investigate the adsorption capacities of locally available low cost bio-adsorbents like neem leaves, orange peels, peanut hulls and coconut coir pith powders to remove colour in a textile industry wastewater, experiments were performed. The experiments were conducted at pH of 7 with different process parameters like adsorbent dosage, temperature, contact time and agitator speed using batch adsorption method. From the experimental results, the maximum colour from the textile industry wastewater was obtained at an optimum adsorbent dosage of 350 mg, an optimum contact time of 73 min., an optimum temperature of 330 K and an optimum agitator speed of 650 rpm. Further, from the validation experiments, it was found that the maximum colour removal percentage in textile industry wastewater is about 75.2%, 78.3%, 86.6% and 81.7 % respectively for neem leaves, orange peels, peanut hulls and coconut coir pith powders. This result was higher than the results obtained by different process parameters for various bio-adsorbents. Finally, from the results of adsorption study, it was concluded that bio-adsorbents used as a coagulant for removing the colour from textile industry wastewater especially peanut hulls powder because of its higher adsorptive capacity than other bio-adsorbents used in this study.
Removal of Colour (dyes) from textile effluent by adsorption using Orange and Banana peel
In the present paper natural adsorbent banana and orange peel was used for removal of colour from waste effluent of textile industry. The materials were obtained and treated for the removal of colour at different doses. These materials also evaluated for the removal of colour at different pH and time. The materials are capable of removing colour from waste water, their colour removal capacity for banana peel is 87% and orange peel is 68 % respectively at normal pH and temperature conditions. The equilibrium time was found 55min for orange peel and 45min for banana peel. The experimental adsorption data fitted with Langmuir and Freundlich adsorption isotherms. The experimental result shows that the materials have good potential to remove colour from effluent and good potential as an alternate low cost adsorbent.
The potential of garlic peel (GP), agricultural waste, to remove methylene blue (MB) from aqueous solution was evaluated in a batch process. Experiments were carried out as function of contact time, initial concentration (25–200 mg/L), pH (4–12) and temperature (303, 313 and 323 K). Adsorption isotherms were modeled with the Langmuir, Freundlich, and Temkin isotherms. The data fitted well with the Fre-undlich isotherm. The maximum monolayer adsorption capacities were found to be 82.64, 123.45, and 142.86 mg/g at 303, 313, and 323 K, respectively. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The results indicated that the garlic peel could be an alternative for more costly adsorbents used for dye removal.
Adsorption Characteristics of Banana Peel in the Removal of Dyes from Textile Effluent
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Disposal of reactive dye contaminants in surface waters causes serious health risks to the aquatic living bodies and populations adjacent to the polluted water sources. This study investigated the applicability of banana peels to remediate water contamination with reactive dyes used in the textile industry. A set of batch experiments was conducted using a standard dye solution to determine optimum adsorption parameters, and these parameters were used for the removal of dyes from actual wastewater. Fitting experimental data into the isotherm and kinetic models suggested monolayer dye adsorption with chemisorption rate-limiting step. The maximum adsorption found from modeling results was 28.8 mg/g. Fourier transformed infrared (FTIR) spectra revealed the existence of hydroxyl, amine and carboxylic groups, contributing to high adsorption of dye molecules onto the adsorbent surface. About 93% of the dyes from the standard solution were removed at optimum conditions (pH—7.0, initial dye ...
Adsorption and Kinetic study of the removal of methylated using white potato peels powder, 2016
The potential of white potato peel powder for the removal of methyl red (MR) dye from aqueous solution was investigated. The adsorbent was characterized by FTIR and SEM analysis. Batch adsorption studies were conducted and various parameters such as contact time, adsorbent dosage, initial dye concentration, pH and temperature were studied to observe their effects in the dye adsorption process. The optimum conditions for the adsorption of MR onto the adsorbent (WPPP) was found to be contact (80 mins), pH (2) and temperature (303 K) for an initial MR dye concentration of 50 mg/l and adsorbent dose of 1.0 g. The experimental equilibrium adsorption data of the (MR) dye fitted best and well to the Freundlich isotherm model. The maximum adsorption capacity was found to be 30.48 mg/g for the adsorption of MR. The kinetic data conforms to the pseudo-second order kinetic model.