Effect of ultrasonic irradiation on the coagulation and inactivation of Microcystis
文献类型：期刊论文
| 作者 | Shi, Hong-Xing ; Qu, Jiu-Hui ; Liu, Hui-Juan ; Mu, Yin-Ling ; Xiao, Kai-Tao ; Wang, Ling |
| 刊名 | JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA
 |
| 出版日期 | 2008-03 |
| 卷号 | 57期号:2页码:101-108 |
| 关键词 | algae flocculation inactivation sedimentation ultrasonic irradiation |
| 英文摘要 | The effectiveness of ultrasonic irradiation on coagulation and inactivity of algal cells was evaluated in the laboratory. Experiments were carried out under different conditions with or without ultrasound using polyaluminium hydroxychloride (PACl) as coagulant and Microcystis as test species. The results suggested that ultrasonic irradiation increased cells' inactivity and obviously improved the coagulation process of algal cells. An increased rate of coagulation and reduced dosage of PACl required to cause efficient flocculation for algae removal were observed in coagulation experiments with ultrasound irradiation. At the same time, compared with samples without irradiation, the characteristics of flocs were improved and the settling rate was increased greatly. A very short period of ultrasonic pretreatment with 40W input power was enough to achieve substantial removal efficiency under the condition that there was no breakage in algal cells. The changes of growth curves for algal samples during the seven days' culturing suggested that ultrasound was effective for the inactivation of the test algae. The possible mechanisms for the enhanced effects on the coagulation and inactivity of Microcystis were that ultrasonic irradiation changed internal and external characteristics of algal cells, which co-promoted their immediate and accelerated coagulation and settlement. |
| WOS记录号 | WOS:000253782200004 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22235]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shi, Hong-Xing,Qu, Jiu-Hui,Liu, Hui-Juan,et al. Effect of ultrasonic irradiation on the coagulation and inactivation of Microcystis[J]. JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA,2008,57(2):101-108. |
| APA | Shi, Hong-Xing,Qu, Jiu-Hui,Liu, Hui-Juan,Mu, Yin-Ling,Xiao, Kai-Tao,&Wang, Ling.(2008).Effect of ultrasonic irradiation on the coagulation and inactivation of Microcystis.JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA,57(2),101-108. |
| MLA | Shi, Hong-Xing,et al."Effect of ultrasonic irradiation on the coagulation and inactivation of Microcystis".JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA 57.2(2008):101-108. |
入库方式： OAI收割
来源：生态环境研究中心
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