Exploring a multifunctional geoengineering material for eutrophication remediation: Simultaneously control internal nutrient load and tackle hypoxia
文献类型：期刊论文
| 作者 | Zhang, Honggang; Lyu, Tao; Liu, Lixuan; Hu, Zhenyuan; Chen, Jun; Su, Bensheng; Yu, Jianwei; Pan, Gang |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2021-02-15 |
| 卷号 | 406页码:- |
| ISSN号 | 1385-8947 |
| 关键词 | Eutrophication Internal loading Lake or reservoir restoration Oxygen nanobubble Sediment anoxia |
| 英文摘要 | An effective approach for control of internal nutrient loading and sediment hypoxia remains a longstanding challenge to the restoration of aquatic ecosystems. In order to simultaneously tackle these issues, a MultiFunction Geoengineering material (MFG) was developed for sediment remediation through the synergistic functions of physical capping, nutrient adsorption and delivery of O-2 nanobubbles. The MFG, derived from natural zeolite, exhibited superior (1.5-4 times higher) adsorption capabilities for both phosphate (PO43P) and ammonium (NH4+-N), than pristine zeolite. The O-2 adsorption capacity was also enhanced from 46, observed in the natural zeolite, to 121 mg O-2/g for the MFG. An in-situ sediment capping experiment in a eutrophic lake demonstrated that the application of MFG dramatically reversed sediment hypoxia (ORP -200 mV) to an aerobic status (ORP 175 mV) and, furthermore, stimulated sediment microbial activity, particularly nitrifying bacteria. The MFG treatment resulted the sediment changing from a nutrient source to a sink through decreasing the cumulative PO43P and NH4+-N fluxes from the sediment by 124.6% and 131.1%, respectively. Moreover, the comprehensive functionalities of the material have been, for the first time, quantified, from which data O-2 nanobubble delivery was determined to be the largest contributor, reducing the fluxes of PO43P and NH4+-N by 57.3% and 56.1% of, respectively. Our findings highlight the viability of such multifunctional material for the remediation of internal nutrient loads in lacustrine environments, towards sustainable eutrophication control. |
| WOS研究方向 | Engineering, Environmental ; Engineering, Chemical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45942]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Adm Off Summer Palace, Beijing 100091, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Yangtze River Delta Branch, Yiwu 322000, Peoples R China 4.Cranfield Univ, Cranfield Water Sci Inst, Coll Rd, Cranfield MK43 0AL, Beds, England 5.Beijing Univ Chem Technol, High Tech Res Inst, Beijing 100029, Peoples R China 6.Nottingham Trent Univ, Sch Anim Rural & Environm Sci, Brackenhurst Campus, Nottingham NG |
| 推荐引用方式 GB/T 7714 | Zhang, Honggang,Lyu, Tao,Liu, Lixuan,et al. Exploring a multifunctional geoengineering material for eutrophication remediation: Simultaneously control internal nutrient load and tackle hypoxia[J]. CHEMICAL ENGINEERING JOURNAL,2021,406:-. |
| APA | Zhang, Honggang.,Lyu, Tao.,Liu, Lixuan.,Hu, Zhenyuan.,Chen, Jun.,...&Pan, Gang.(2021).Exploring a multifunctional geoengineering material for eutrophication remediation: Simultaneously control internal nutrient load and tackle hypoxia.CHEMICAL ENGINEERING JOURNAL,406,-. |
| MLA | Zhang, Honggang,et al."Exploring a multifunctional geoengineering material for eutrophication remediation: Simultaneously control internal nutrient load and tackle hypoxia".CHEMICAL ENGINEERING JOURNAL 406(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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