Abstract

Untreated coking effluent presents a great challenge for sustainable development of the steel industry and environment preservation. In this study, an internal micro-electrolysis method using Fe/C materials was employed for pretreatment of real coking wastewater with high mass concentration. The Fe/C materials were prepared by Fe powder and graphite powder; and the characteristics of surface morphology, structure, composition of the synthesized materials were examined by Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Energy Dispersive X-ray Spectroscopy (EDS). The effects of factors namely dosage of Fe/C material, treatment time, initial pH and temperature were investigated via chemical oxygen demand (COD) and phenol removal efficiencies. Optimal treatment efficiency was attained at pH of 4, Fe/C dosage of 40 g/L, treatment time of 360 minutes and temperature of 25°C. After the internal electrolysis process, the values of COD, BOD5, and phenol of the wastewater were 6500, 4850 and 0.1 mg/L, respectively.

Details

Title
Internal Micro-electrolysis Using Fe/C Material for Pre-Treatment of Concentrated Coking Wastewater
Author
Van Tu Nguyen 1 ; Tra Huong Do 2 ; Vu, Duy Nhan 1 ; Tran Thi Kim Ngan 3 

 Institute of Chemistry and Materials, 17 Hoang Sam, Cau Giay, Hanoi, Vietnam 
 Thai Nguyen University of Education, Thai Nguyen University, 20 Luong Ngoc Quyen, Thai Nguyen City, Vietnam 
 NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam; Center of Excellence for Green Energy and Environmental Nanomaterials, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam 
Pages
41-46
Publication year
2021
Publication date
2021
Publisher
De Gruyter Poland
ISSN
15098117
e-ISSN
18994741
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2551754815
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.