KMS of Research Center for Eco-Environmental Sciences， CAS
| Degradation of SDBS in water solutions using plasma in gas-liquid interface discharge: Performance, byproduct formation and toxicity evaluation | |
Yu, Jianwei; Cui, Yanyan; Zhang, Heng; Liu, Yuan; Oinuma, Gaku; Yamauchi, Tokiko; Mu, Zhen; Yang, Min
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| 2019-11-01 | |
| Source Publication | CHEMOSPHERE
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| ISSN | 0045-6535 |
| Volume | 234Pages:471-477 |
| Abstract | Sodium Dodecyl Benzene Sulfonate (SDBS) is a major anionic surfactant and is widely used in the detergent industry. The large amount of SDBS discharged into water bodies can cause eutrophication of water bodies and produce toxic effects in aquatic organisms. In this study, the degradation of SDBS and variation in toxicity during the plasma treatment process were evaluated using gas-liquid interface discharge. The experimental results showed that SDBS could be removed effectively after discharge for 8 min at an initial concentration of 30 mg/L The SDBS removal could be fitted by the first-order kinetic model. The plasma voltage and initial pH had great effects on the removal of SDBS. At the same voltage, SDBS could be removed faster under alkaline conditions. Compared to ozonation, much higher SDBS and TOC removal performance was achieved by plasma treatment. HO center dot, which was mainly derived from the reaction of H2O2 and ozone in the solutions, played a major role in the oxidation process. The toxicity evaluation showed that plasma treatment could reduce the acute toxicity effectively initially, and also indicated that the formed intermediates of formate, oxalate, malonate and sulfate had no negative effects. However, further treatment caused an increase in toxicity, which was mainly correlated with the excessive residual H2O2 formed during the plasma process. This study indicated that while applying plasma treatment, the conditions should be optimized comprehensively to maintain a low H2O2 residual in the effluent. (C) 2019 Elsevier Ltd. All rights reserved. |
| Department | 中国科学院饮用水科学与技术重点实验室 |
| Keyword | SDBS Plasma Surfactant Acute toxicity |
| Document Type | 期刊论文 |
| Identifier | http://ir.rcees.ac.cn/handle/311016/43437 |
| Collection | 中国科学院饮用水科学与技术重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.China Univ Min & Technol, Beijing 100083, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Yu, Jianwei,Cui, Yanyan,Zhang, Heng,et al. Degradation of SDBS in water solutions using plasma in gas-liquid interface discharge: Performance, byproduct formation and toxicity evaluation[J]. CHEMOSPHERE,2019,234:471-477. |
| APA | Yu, Jianwei.,Cui, Yanyan.,Zhang, Heng.,Liu, Yuan.,Oinuma, Gaku.,...&Yang, Min.(2019).Degradation of SDBS in water solutions using plasma in gas-liquid interface discharge: Performance, byproduct formation and toxicity evaluation.CHEMOSPHERE,234,471-477. |
| MLA | Yu, Jianwei,et al."Degradation of SDBS in water solutions using plasma in gas-liquid interface discharge: Performance, byproduct formation and toxicity evaluation".CHEMOSPHERE 234(2019):471-477. |
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| Degradation of SDBS （1614KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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