https://orcid.org/0000-0001-6971-8262
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ABSTRACT
Marine seaweed is considered as one of the efficient tools for the mitigation of carbon dioxide and it is naturally overgrown in India. Biochar produced from seaweeds will remediate the toxic pollutants present in the soil and wastewater. The current investigation examined the potential of biochar synthesized from Ulva reticulata for the decolorization of Remazol Brilliant Orange 3 R (RBO3R). An up-flow-packed bed column is designed to check the feasibility of the effluent treatment in a real wastewater system. The partition coefficient was calculated to elucidate the optimal initial RBO3R concentration that has the highest affinity toward the biochar and the column operating parameters namely sorbent bed depth, flowrate and the initial RBO3R concentration were also studied. To validate the experimental data mathematical models namely the modified dose-response model (MDR) and Yoon Nelson model (YN) were developed. The results concluded that the removal efficiency of 69.08% and sorption capacity of 0.1046 mmol/g was obtained. The biochar potential has been assessed by conducting three sorptions and an elution cycle continuously using 0.01 M sodium hydroxide as the elutant.
Disclosure statement
The authors declare no conflict of interest.
Additional information
Notes on contributors
Sujatha Sivarethinamohan
Dr. Sujatha Sivarethinamohan is a Professor in Department of Civil Engineering K. Ramakrishnan College of Technology, Trichy. Her research area includes biochar, dye removal, wastewater treatment. She has authored/co-authored 20 + articles in referred journals.
Gokulan Ravindiran
Dr. Gokulan Ravindiran is an Assistant Professor in Department of Civil Engineering, GMRIT, Rajam. His research interest includes Biochar, Biofuels, Bioremediation and Wastewater Treatment. He has authored/co-authored 30 + articles in referred journals.
Joga Rao Hanumanthu
Dr. Joga Rao Hanumanthu is an Associate Professor in the Department of Chemical Engineering, GMR Institute of Technology, Rajam. His research interest includes biochar, low cost adsorbents and Wastewater Treatment. He has authored/co-authored 20 + articles in referred journals.
Kalyani Gaddam
Dr. Kalyani Gaddam is an Associate Professor in the Department of Civil Engineering, Nadimpalli Satyanarayan Raju Institute of Technology, Visakhapatnam, Andhra Pradesh. Her Research interest includes Biochar, Novel Adsorbent, Wastewater Treatment and Bioremediation. She has authored/co-authored 20 + articles in referred journals.
Praveen Saravanan
Dr. Praveen Saravanan research interest includes Biochar, Bioremediation and Wastewater Treatment. He has authored/co-authored 20 articles in referred journals.
Senthil Kumar Muniasamy
Dr. Senthil Kumar Muniasamy currently working inBule Hora University, Ethiopia. His research area includes biochar, groundwater contamination and Wastewater Treatment. He has authored/co-authored 20 + articles in referred journals.