Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae
文献类型：CNKI期刊论文
| 作者 | Xueyi Dong; Xihua Cao ; Wenbin Jiang; Xiuxian Song; Zhiming Yu; Shitao Yu
|
| 发表日期 | 2021-08-15 |
| 出处 | Journal of Environmental Sciences
 |
| 关键词 | Modified clay Red tide Aluminum species Microalgal removal efficiency Ecological safety |
| 英文摘要 | Polyaluminum chloride modified clay(PAC-MC) is a safe and efficient red tide control agent that has been studied and applied worldwide. Although it is well known that the distribution of hydrolytic aluminum species in PAC affects its flocculation, little is known about the influence of particulars aluminum species on the microalgae removal efficiency of PAC-MC;this lack of knowledge creates a bottleneck in the development of more efficient MCs based on aluminum salts. The ferron method was used in this study to quantitatively analyze the distributions of and variations in different hydrolytic aluminum species during the process of microalgae removal by PAC-MC. The results showed that Ala, which made up 5%–20% of the total aluminum, and Alp, which made up 15%–55% of the total aluminum, significantly affected microalgae removal, with Pearson's correlation coefficients of 0.83 and 0.89, respectively. Most of the aluminum in the PAC-MC sank rapidly into the sediments, but the rate and velocity of settlement were affected by the dose of modified clay. The optimal dose of PAC-MC for precipitating microalgae was determined based on its aluminum profile. These results provide guidance for the precise application of PAC-MC in the control of harmful algal blooms. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Science Foundation of China (No. 41976145) ; the Taishan Scholars Climbing Program of Shandong Province of 2019 ; the Science and Technology Major Project of Guangxi (No.AA17202020-4) |
| 卷 | v.106期:08页:79-85 |
| 语种 | 英文; |
| 分类号 | X55 |
| ISSN号 | 1001-0742 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187699]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollegeofChemicalEngineering,QingdaoUniversityofScienceandTechnology 2.CASKeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 3.FunctionalLaboratoryofMarineEcologyandEnvironmentalScience,QingdaoNationalLaboratoryforMarineScienceandTechnology 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.UniversityofChineseAcademyofScience |
| 推荐引用方式 GB/T 7714 | Xueyi Dong,Xihua Cao,Wenbin Jiang,et al. Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae. 2021. |
入库方式： OAI收割
来源：海洋研究所
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