中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum

文献类型:期刊论文

作者Zhao, Guoqiang1,2; Sheng, Yanqing1; Li, Changyu1,2; Liu, Qunqun1,2; Hu, Nana1,2
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2020-04-15
卷号386页码:123791
关键词Organic phosphorus Pyrophosphate Immobilization Synthetic zeolite Lanthanum Humic acid
ISSN号1385-8947
DOI10.1016/j.cej.2019.123791
英文摘要Although phosphorus (P)-removing materials have been widely used to immobilize orthophosphate in aquatic ecosystems, the immobilization of organic phosphorus (OP) and pyrophosphate (PP) remains unclear. In this study, a unique OP/PP-immobilizing synthetic zeolite loaded with humic acid (HA) and La(OH)(3) nanorod composite (ZHLA) is synthesized, and OP/PP-immobilization is examined by means of enzymolysis and photolysis. The results indicate that OP and PP could not be photodegraded into PO43- under natural conditions. Although OP could be degraded into PO43- by enhanced Fenton's reagent, La3+ and HA could protect OP and PP from degradation. As a result of the colloidal coagulation and photocatalysis of La(OH)(3), the activity of phosphatase could be reduced. The PP and phytate become resistant to enzymolysis through the formation of stable HA-La-PP/phytate or La-PP/phytate chelates. However, labile monoester phosphate could not form stable chelates resisting to enzymolysis. This labile monoester phosphate is hydrolyzed into PO43- and thereafter immobilized by ZHLA, which is the main pathway to achieve permanent immobilization. Most release-sensitive P fractions are transferred to the stable P fraction after ZHLA application. The ZHLA is demonstrated to be an economical and effective P-immobilization material and has high potential as a commercial sediment-capping product for eutrophication control.
WOS关键词COAL FLY-ASH ; FRESH-WATER ; LAKE-SEDIMENTS ; HYDROLYSIS ; PHOSPHATE ; DEGRADATION ; COMPOSITE ; PHOTODEGRADATION ; BIOAVAILABILITY ; EUTROPHICATION
WOS研究方向Engineering
语种英语
WOS记录号WOS:000548623400007
资助机构Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050203] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41373100] ; Key Research and Development Program of Shandong Province [2019GSF109002]
源URL[http://ir.yic.ac.cn/handle/133337/30468]  
专题烟台海岸带研究所_山东省海岸带环境工程技术研究中心
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China
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GB/T 7714
Zhao, Guoqiang,Sheng, Yanqing,Li, Changyu,et al. Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum[J]. CHEMICAL ENGINEERING JOURNAL,2020,386:123791.
APA Zhao, Guoqiang,Sheng, Yanqing,Li, Changyu,Liu, Qunqun,&Hu, Nana.(2020).Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum.CHEMICAL ENGINEERING JOURNAL,386,123791.
MLA Zhao, Guoqiang,et al."Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum".CHEMICAL ENGINEERING JOURNAL 386(2020):123791.

入库方式: OAI收割

来源:烟台海岸带研究所

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