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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Ping Xiong, Zhaokun Wang, Juling Fang, Shuping Lai, Bo Zhou, Yuexi |
| Description | Country affiliation: China Author Affiliation: Xiong Z ( Department of Environmental Science and Engineering, School of Architecture and Environment, Sichuan University, Chengdu 610065, China.); Lai B ( Department of Environmental Science and Engineering, School of Architecture and Environment, Sichuan University, Chengdu 610065, China. Electronic address: laibo@scu.edu.cn.); Yang P ( Department of Environmental Science and Engineering, School of Architecture and Environment, Sichuan University, Chengdu 610065, China.); Zhou Y ( Research Center of Water Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.); Wang J ( Research Center of Water Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.); Fang S ( Chengdu Tianfu New Area Construction Investment Co., Ltd, Chengdu 610094, China.) |
| Abstract | In order to further compare the degradation capacity of Fe(0) and Fe/Cu bimetallic system under different aeration conditions, the mineralization of PNP under different aeration conditions has been investigated thoroughly. The results show that the removal of PNP by Fe(0) or Fe/Cu system followed the pseudo-first-order reaction kinetics. Under the optimal conditions, the COD removal efficiencies obtained through Fe(0) or Fe/Cu system under different aeration conditions followed the trend that Fe/Cu (air)>Fe/Cu (N2: 0-30 min, air: 30-120 min)>control-Fe (air)>Fe/Cu (without aeration)>Fe/Cu (N2)>control-Fe (N2). It revealed that dissolved oxygen (DO) could improve the mineralization of PNP, and Cu could enhance the reactivity of Fe(0). In addition, the degradation of PNP was further analyzed by using UV-vis, FTIR and GC/MS, and the results suggest that Fe/Cu bimetallic system with air aeration could completely break the benzene ring and NO2 structure of PNP and could generate the nontoxic and biodegradable intermediate products. Meanwhile, most of these intermediate products were further mineralized into CO2 and H2O, which brought about a high COD removal efficiency (83.8%). Therefore, Fe/Cu bimetallic system with air aeration would be a promising process for toxic refractory industry wastewater. |
| ISSN | 03043894 |
| Journal | Journal of Hazardous Materials |
| Volume Number | 297 |
| e-ISSN | 18733336 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-10-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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