TY - JOUR
T1 - Hyphenated Fenton-column packed nMnO-modified wood biochar for tannery effluent treatment
T2 - Adsorption mechanism and reusability study
AU - Singh, Kavita
AU - Prasad, Bablu
AU - Kumar, Abhishek
AU - Kumari, Madhu
AU - Dubey, Darpan
AU - Sillanpää, Mika
AU - Prasad, Kumar Suranjit
N1 - Publisher Copyright:
© 2024 Elsevier Inc.
PY - 2024/7/1
Y1 - 2024/7/1
N2 - Industrial wastewater contains a wide range of pollutants that, if released directly into natural ecosystems, have the potential to pose serious risks to the environment.This study aims to investigate sustainable and efficient approaches for treating tannery wastewater, employing a combination of hyphenated Fenton oxidation and adsorption processes. Rigorous analyses were conducted on wastewater samples, evaluating parameters like COD, sulphide, NH3–N, PO4 3−, NO3 −, and Cr(VI). The performance of this adsorbent material was gauged through column adsorption experiments. A comprehensive characterization of the adsorbent was undertaken using techniques such as SEM, EDX, BET, FTIR, XRD, and LIBS. The study delved into varying operational parameters like bed depth (ranging from 3.5 to 9.5 cm) diameter (2.5 cm) and influent flow rate (ranging from 5 to 15mLmin-1). The experimental outcomes revealed that increasing the bed depth and decreasing the influent flow rate significantly bolstered the adsorption column's effectiveness. Breakthrough curves obtained were fitted with different models, including the Thomas and Yoon-Nelson models. The most optimal column performance was achieved with a bed height of 10.5 cm and a flow rate of 5mLmin-1. The combined process achieved removal efficiencies of 94.5% for COD, 97.4% for sulphide, 96.2% for NH3–N, 83.1% for NO3 −, 79.3% for PO4 3−, and 96.9% for Cr(VI) in tannery effluent. This research presents a notable stride toward the development of sustainable and efficient strategies for tannery wastewater treatment.
AB - Industrial wastewater contains a wide range of pollutants that, if released directly into natural ecosystems, have the potential to pose serious risks to the environment.This study aims to investigate sustainable and efficient approaches for treating tannery wastewater, employing a combination of hyphenated Fenton oxidation and adsorption processes. Rigorous analyses were conducted on wastewater samples, evaluating parameters like COD, sulphide, NH3–N, PO4 3−, NO3 −, and Cr(VI). The performance of this adsorbent material was gauged through column adsorption experiments. A comprehensive characterization of the adsorbent was undertaken using techniques such as SEM, EDX, BET, FTIR, XRD, and LIBS. The study delved into varying operational parameters like bed depth (ranging from 3.5 to 9.5 cm) diameter (2.5 cm) and influent flow rate (ranging from 5 to 15mLmin-1). The experimental outcomes revealed that increasing the bed depth and decreasing the influent flow rate significantly bolstered the adsorption column's effectiveness. Breakthrough curves obtained were fitted with different models, including the Thomas and Yoon-Nelson models. The most optimal column performance was achieved with a bed height of 10.5 cm and a flow rate of 5mLmin-1. The combined process achieved removal efficiencies of 94.5% for COD, 97.4% for sulphide, 96.2% for NH3–N, 83.1% for NO3 −, 79.3% for PO4 3−, and 96.9% for Cr(VI) in tannery effluent. This research presents a notable stride toward the development of sustainable and efficient strategies for tannery wastewater treatment.
KW - Bombax ceiba
KW - Fenton oxidation
KW - Fixed-bed adsorption
KW - Tannery effluent
UR - http://www.scopus.com/inward/record.url?scp=85189078468&partnerID=8YFLogxK
U2 - 10.1016/j.envres.2024.118786
DO - 10.1016/j.envres.2024.118786
M3 - Article
AN - SCOPUS:85189078468
SN - 0013-9351
VL - 252
JO - Environmental Research
JF - Environmental Research
M1 - 118786
ER -