Enhanced degradation performance and mechanisms of decabromodiphenylether in homogeneous system of Fe3+ activated dithionite
文献类型：期刊论文
| 作者 | Song, Wei1; Wang, Zhuoyue5; Li, Ji5; Zhang, Xiaolei5; Fu, Caixia4; Du, Xing1; Wang, Ningjie5; Song, Qi3; Wang, Zhihong1; Bhatt, Pankaj2 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2023-01-15 |
| 卷号 | 384页码:9 |
| 关键词 | Fe3+/dithionite Decabromodiphenylether Reactive species Synergetic debromination and mineralization Response surface methodology |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2022.135597 |
| 通讯作者 | Fu, Caixia(11849589@mail.sustech.edu.cn) |
| 英文摘要 | Brominated flame retardant (BFR) generally could be debrominated and degraded effectively by photolysis with high energy demand and waste production. However, in this study, an innovatively non-photolysis system based on dithionite (DTN) has been established for BFR treatment in water to meet the requirement of low-carbon and sustainable development. Fe3+-activated dithionite (DTN), a homogeneous non-photolysis coupled system, was innovatively used for decabromodiphenylether (BDE-209, a frequently detected priority contaminant in several environmental matrices) degradation effectively in 30 min with the simultaneous debromination and mineralization. Based on scavenging experiment and ESR analysis, SO4 center dot-, center dot OH, and SO3 center dot- were confirmed to be responsible for BDE-209 removal in Fe3+/DTN system. And the contribution rates of SO4 center dot-, center dot OH, and other species were about 47.5%, 30.8%, and 21.7% for BDE-209 degradation, respectively. Moreover, based on central composite design (CCD) in response surface methodology (RSM), a satisfactory quadratic model with low probabilities (<0.0001) at a confidence level of 95% was established to predict BDE-209 degradation in Fe3+/DTN system (R2 = 0.9691, R2-adj = 0.9413). Furthermore, the predicted BDE-209 degradation efficiency (C/C0 approximate to 0.11) was achieved with the optimum Fe3+ dosage, DTN dosage and initial pH of 81.78 mu M, 173.26 mu M, and 6.27, respectively. Furthermore, debromination stepwise, hydroxylation, and mineralization were involved for BDE-209 degrada-tion in Fe3+/DTN system according to the identified intermediates by gas chromatography-mass spectrometry (GC-MS). And due to the generated mixture including BDE-209 derivates, intermediates and bromide ion, the toxicity effect on Photobacterium phosphoreum growth was increasing in the initial BDE-209 reaction stage and then decreasing to be lower than that of BDE-209 itself. This study has revealed a promising system of DTN activated by Fe3+ for BFRs in-situ degradation and detoxification with the synergetic debromination and mineralization. |
| WOS关键词 | RESPONSE-SURFACE METHODOLOGY ; POLYBROMINATED DIPHENYL ETHERS ; PHOTOCATALYTIC DEGRADATION ; OXIDATION ; KINETICS ; REDUCTION ; DEBROMINATION ; OPTIMIZATION ; PERSULFATE ; RADICALS |
| 资助项目 | China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Shenzhen Science and Technology Innovation Commission ; [2022M720841] ; [52200088] ; [KCXFZ20201221173602008] ; [KQJSCX20180328165658476] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000905987000001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Shenzhen Science and Technology Innovation Commission |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38177]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Fu, Caixia |
| 作者单位 | 1.Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China 2.Purdue Univ, Dept Agr & Biol Engn, W Lafayette, IN 47906 USA 3.Henan Medsci Pharmaceut Co Ltd, Zhumadian 463000, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 5.Harbin Inst Technol Shenzhen, Sch Civil & Environm Engn, Shenzhen Key Lab Water Resource Applicat & Environ, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Wang, Zhuoyue,Li, Ji,et al. Enhanced degradation performance and mechanisms of decabromodiphenylether in homogeneous system of Fe3+ activated dithionite[J]. JOURNAL OF CLEANER PRODUCTION,2023,384:9. |
| APA | Song, Wei.,Wang, Zhuoyue.,Li, Ji.,Zhang, Xiaolei.,Fu, Caixia.,...&Zhu, Shunni.(2023).Enhanced degradation performance and mechanisms of decabromodiphenylether in homogeneous system of Fe3+ activated dithionite.JOURNAL OF CLEANER PRODUCTION,384,9. |
| MLA | Song, Wei,et al."Enhanced degradation performance and mechanisms of decabromodiphenylether in homogeneous system of Fe3+ activated dithionite".JOURNAL OF CLEANER PRODUCTION 384(2023):9. |
入库方式： OAI收割
来源：广州能源研究所
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