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Article

Adsorption of Patent Blue V from Textile Industry Wastewater Using Sterculia alata Fruit Shell Biochar: Evaluation of Efficiency and Mechanisms

1
Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
2
Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow, Uttar Pradesh 226001, India
3
Amity Institute of Microbial Technology, Amity University, Noida, Uttar Pradesh 201313, India
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Department of Chemical Engineering, Bundelkhand Institute of Engineering & Technology (BIET), Jhansi, Uttar Pradesh 284128, India
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Department of Municipal Engineering, Southeast University, Nanjing 210096, China
6
Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, P.O. Box 3015, 2601DA Delft, The Netherlands
*
Authors to whom correspondence should be addressed.
Water 2020, 12(7), 2017; https://doi.org/10.3390/w12072017
Received: 8 April 2020 / Revised: 22 June 2020 / Accepted: 8 July 2020 / Published: 16 July 2020
Biochar prepared from Sterculia alata fruit shell showed a better performance for dye removal than the biomass from Sterculia alata fruit shell. The important process parameters—namely the pH, the amount of biochar, the initial dye concentration and the contact time—were optimized in order to maximize dye removal using biochar of Sterculia alata fruit shell as the bio-sorbent. The results from this study showed that the maximum adsorption of dye on the biochar was obtained at a biochar dosage of 40 g/L, at a contact time of 5 h, and an initial dye concentration of 500 mg/L (pH 2.0; temperature 30 ± 5 °C). The increase in the rate adsorption with temperature and the scanning electron microscopic (SEM) images indicated the possibility of multilayer type adsorption which was confirmed by better fit of the Freundlich adsorption isotherm with the experimental data as compared to the Langmuir isotherm. The values n and R2 in the Freundlich isotherm were found to be 4.55 and 0.97, respectively. The maximum adsorption capacity was found to be 11.36 mg/g. The value of n > 1 indicated physical nature of the adsorption process. The first and second order kinetics were tested, and it was observed that the adsorption process followed the first-order kinetics (R2 = 0.911). View Full-Text
Keywords: Patent Blue V; Langmuir isotherm; Freundlich isotherm; SEM; removal efficiency Patent Blue V; Langmuir isotherm; Freundlich isotherm; SEM; removal efficiency
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MDPI and ACS Style

Giri, B.S.; Goswami, M.; Kumar, P.; Yadav, R.; Sharma, N.; Sonwani, R.K.; Yadav, S.; Singh, R.P.; Rene, E.R.; Chaturvedi, P.; Singh, R.S. Adsorption of Patent Blue V from Textile Industry Wastewater Using Sterculia alata Fruit Shell Biochar: Evaluation of Efficiency and Mechanisms. Water 2020, 12, 2017. https://doi.org/10.3390/w12072017

AMA Style

Giri BS, Goswami M, Kumar P, Yadav R, Sharma N, Sonwani RK, Yadav S, Singh RP, Rene ER, Chaturvedi P, Singh RS. Adsorption of Patent Blue V from Textile Industry Wastewater Using Sterculia alata Fruit Shell Biochar: Evaluation of Efficiency and Mechanisms. Water. 2020; 12(7):2017. https://doi.org/10.3390/w12072017

Chicago/Turabian Style

Giri, Balendu S., Mandavi Goswami, Prabhat Kumar, Rahul Yadav, Neha Sharma, Ravi K. Sonwani, Sudeep Yadav, Rajendra P. Singh, Eldon R. Rene, Preeti Chaturvedi, and Ram S. Singh. 2020. "Adsorption of Patent Blue V from Textile Industry Wastewater Using Sterculia alata Fruit Shell Biochar: Evaluation of Efficiency and Mechanisms" Water 12, no. 7: 2017. https://doi.org/10.3390/w12072017

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