| Title: | Recycling electroplating sludge as a monolithic catalyst for effective catalytic purification of volatile organic compounds |
| Author(s): | Wang Z; Wu T; Long J; Bai L; Zhang J; Qian G; |
| Address: | "SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai, 200444, PR China. Electronic address: 544760365@qq.com. SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai, 200444, PR China. Electronic address: 715570125@qq.com. Shanghai SUS Environment Co., LTD, Shanghai, 201703, China. Electronic address: long@shjec.cn. Shanghai SUS Environment Co., LTD, Shanghai, 201703, China. Electronic address: baili@shjec.cn. SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai, 200444, PR China. Electronic address: irujam@t.shu.edu.cn. SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai, 200444, PR China. Electronic address: grqian@shu.edu.cn" |
| DOI: | 10.1016/j.jenvman.2021.113567 |
| ISSN/ISBN: | 1095-8630 (Electronic) 0301-4797 (Linking) |
| Abstract: | "Electroplating sludge had a high content of heavy metals and usually lacked high-value-added utilization. In this work, Cu-containing sludge was used to synthesize a spinel catalyst, which was applied in catalytic oxidization of toluene. As a result, the sludge-derived spinel removed 50% of toluene (1000 ppm, 9600 h(-1)) at 280 degrees C. In comparison, a reagent-synthesized spinel with a similar component removed 50% of pollutant at 294 degrees C. The sludge-derived spinel also showed a stable performance for over 50 h at 370 degrees C. Even when the initial concentration was increased to 5000 ppm, or the gas hourly space velocity was increased to 40,000 h(-1), the temperature for 50% removal was only increased to 303 degrees C. According to characterizations, surface oxygens of the sludge-derived spinel were more active than those in the reagent-synthesized one. Besides, the former had more active surface oxygens (207.9 mumol/g) than the latter (183.1 mumol/g). Furthermore, the sludge-derived spinel was coated on a monolithic honeycomb, which were also effective in catalytic oxidization of toluene. The main results of this work were in favor of high-value-added utilization of hazardous solid waste and promoting its real industry application" |
| Keywords: | Catalysis Electroplating Recycling *Sewage *Volatile Organic Compounds Catalytic oxidization Electroplating sludge Monolithic catalyst Spinel Volatile organic compounds; |
| Notes: | "MedlineWang, Zongfang Wu, Tianwei Long, Jisheng Bai, Li Zhang, Jia Qian, Guangren eng England 2021/08/23 J Environ Manage. 2021 Dec 1; 299:113567. doi: 10.1016/j.jenvman.2021.113567. Epub 2021 Aug 20" |
