Ultrasonic-induced degradation of pentachlorophenol
文献类型：期刊论文
| 作者 | Shen, ZZ; Cheng, JZ; Wu, SJ |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2003-12-01 |
| 卷号 | 61期号:12页码:2016-2019 |
| 关键词 | sonochemistry Fenton type reagent bi-frequency pentachlorophenol hydroxy radical |
| 英文摘要 | The presence of human-derived or naturally occurring volatile or nonvolatile toxic organic compounds in drinking water has become a problem of international concern. The presence of some toxic organic compounds in a few parts per billion is enough to render a water supply unpotable because it is harmful to long-term health, even though the water may have no discernible taste and odor. So waste water must be treated. There are several reports about water treatment in early literatures which use the power ultrasound wave to degrade the organic compounds in water. The chemical effects of ultrasound derive from acoustic cavitation. Cavitation is a source of radicals, especially the hydroxy radical, .OH, the very strong and nonspecific oxide which escapes out of the bubble and reacts rapidly with compounds in solution. In this paper, degradation effects of ultrasound on pentachlorophenol (PCP) is researched. PCP is treated by low frequency (16 kHz), high frequency [(800 +/- 1) kHz], and bi-frequency (combined of 16 kHz and 800 kHz) ultrasound wave, respectively. The results show that the rate of PCP degradation under the same conditions is highest at bi-frequency, lowest at 16 kHz. In the presence of Fenton type reagent the rate of PCP degradation is highest at bi-frequency which is 20.93 times as high as that of the stirring system without ultrasound wave. The ratios are 4.91 and 1.06 at 800 and 16 kHz, respectively. The studies show that the bi-frequency ultrasound is an effective method for pollutants degradation, but it need to make further study. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | SONOCHEMICAL DEGRADATION ; ORGANIC-COMPOUNDS ; AQUEOUS-SOLUTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000187533900025 |
| 公开日期 | 2015-12-08 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8929]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 2.Shaanxi Normal Univ, Inst Appl Acoust, Xian 710062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, ZZ,Cheng, JZ,Wu, SJ. Ultrasonic-induced degradation of pentachlorophenol[J]. ACTA CHIMICA SINICA,2003,61(12):2016-2019. |
| APA | Shen, ZZ,Cheng, JZ,&Wu, SJ.(2003).Ultrasonic-induced degradation of pentachlorophenol.ACTA CHIMICA SINICA,61(12),2016-2019. |
| MLA | Shen, ZZ,et al."Ultrasonic-induced degradation of pentachlorophenol".ACTA CHIMICA SINICA 61.12(2003):2016-2019. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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