Research on pollution prevention and control BAT of PCDD/Fs in secondary copper industry

• Published in: Ecotoxicology and environmental safety 2019-10, Vol.181, p.308-311
• Main Authors: Guanglong, Wu, Yangzhao, Sun, Jiahong, Xie, Yong, Lu
• Format: Article
• Language: English
• Subjects: Best available technologies; De novo synthesis; Dioxins; Evaluation system; Secondary copper smelting
• ISSN: 0147-6513; 1090-2414
• DOI: 10.1016/j.ecoenv.2019.05.077

Secondary copper industry has received more and more attention due to its high Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) emissions. Best available technologies (BAT) plays an important role in prevention of PCDD/Fs pollution for secondary copper industry and is recommended by the Stockholm Convention on POPs. In this study, AHP-Delphi method-fuzzy comprehensive evaluation method is used to evaluate the 5 smelting technologies that are usually applied in secondary copper industry. The result shows that the Kaldo smelting technology and Ausmelt/ISA smelting technology rank top because of its superior technical performance and good environmental benefits. Then, Kaldo furnace and bag filter were selected as a preliminary validation study on the feasibility of BAT. The results of PCDD/Fs analysis showed that the combination of Kaldo furnace and bag filter can meet the requirements of PCDD/Fs pollution prevention and should be recommended for the treatment of low grades copper scrap. •In this study, AHP-Delphi method-fuzzy comprehensive evaluation method is used to evaluate the 5 smelting technologies that are applied in secondary copper industry.•Kaldo furnace and bag filter were then selected as a validation study.•The results showed that they can meet the requirements of PCDD/Fs pollution prevention.•This study will provide a valuable method for BAT evaluation and PCDD/Fs pollution prevention in secondary copper industry.