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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20875
Title: High surface area Eucalyptus wood biochar for the removal of phenol from petroleum refinery wastewater
Authors: Singh R.
Dutta, Raj Kumar
Naik D.V.
Ray A.
Kanaujia P.K.
Published in: Environmental Challenges
Abstract: The presence of phenolic compounds in petroleum refinery wastewater is a matter of significant environmental concern. Its removal is achieved through various methods, among which adsorption is an efficient and economically viable option. This study reports the development of activated biochar (EABC) from Eucalyptus wood pyrolytic biochar (EPBC) to remove phenols from petroleum refinery wastewater. The best activation strategy involved ball-milling of KOH and EPBC in the ratio 3:1, followed by annealing at 800 °C under an N2 atmosphere. The activated biochar (EABC-3–800) exhibited high phenol adsorption capacity (308.9 mg/g), attributed to the presence of heterogeneous pores, corroborated by large BET surface area (2048 m2 /g). As determined through HPLC, the EABC-3–800 could remove nearly 95% phenol (C0=114 ppm) from the wastewater of the delayed coking unit of a petroleum refinery. The best-fitting of the adsorption results in the Freundlich isotherm model substantiates the hypothesis of pore-based adsorption of phenol compared to the surface-adsorption-based Langmuir isotherm. The phenol adsorption kinetics followed the pseudo-second-order model, indicating weak chemical interactions between phenol and activated biochar. The regeneration and reuse of EABC-3–800 for a minimum of five operational cycles demonstrate its potential for industrial wastewater remediation. © 2021 The Author(s)
Citation: Environmental Challenges, 5
URI: https://doi.org/10.1016/j.envc.2021.100353
http://repository.iitr.ac.in/handle/123456789/20875
Issue Date: 2021
Publisher: Elsevier B.V.
Keywords: Biochar
Eucalyptus wood
Isotherms and kinetics
Petroleum refinery wastewater
Phenol removal
ISSN: 26670100
Author Scopus IDs: 56711455800
47161194700
9243117400
57213109726
8868316400
Author Affiliations: Singh, R., Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, Uttarakhand 248005, India, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Dutta, R.K., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Naik, D.V., Distillate and Heavy Oil Processing Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, Uttarakhand 248005, India
Ray, A., Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, Uttarakhand 248005, India
Kanaujia, P.K., Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, Uttarakhand 248005, India
Funding Details: We greatly appreciate the financial support provided under the project OLP-522019 funded by the Council of Scientific and Industrial Research (CSIR), New Delhi, India, and UGC-DAE-CSR-KC/CRS/19/TE09/1077/1093 , funded by the UGC -DAE Kolkata center. The authors greatly acknowledge the analytical support received from Mr. Sandeep Saran, Mr. Bhanu Prasad, and Mr. Jitendra Kumar, respectively, for XRD, HPLC, and TGA characterization. We are thankful to Dr. Y.S. Reddy and Mr. Adarsh Kumar for the BET surface area analysis of biochar samples. The authors express their gratitude to Dr. Sunil Kumar Suman, Dr. Raja Ram Bal, and Dr. Ankur Bordoloi for UV?vis, HR-TEM, and Raman characterizations. We greatly appreciate the financial support provided under the project OLP-522019 funded by the Council of Scientific and Industrial Research (CSIR), New Delhi, India, and UGC-DAE-CSR-KC/CRS/19/TE09/1077/1093, funded by the UGC-DAE Kolkata center. OLP-522019; Council of Scientific and Industrial Research, India, CSIR: UGC-DAE-CSR-KC/CRS/19/TE09/1077/1093
Corresponding Author: Dutta, R.K.; Department of Chemistry, India; email: r.dutta@cy.iitr.ac.in
Appears in Collections:Journal Publications [CY]

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