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| DOI: | 10.1007/s00128-019-02665-3 |
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| Web URL(s): | https://link.springer.com/article/10.1007/s00128-019-02665-3
Last checked: 08/14/2019
Access conditions: Item is within a limited-access website
https://link.springer.com/content/pdf/10.1007%2Fs00128-019-02665-3.pdf
Last checked: 08/14/2019
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Liang, Shu-xuan;
Xi, Xiaocan;
Ding, Ling;
Chen, Qiusheng;
Liu, Wei |
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| Author Affiliation: | Liang, Xi, Ding, and Liu: College of Chemistry and Environmental Science, Hebei University and Key Laboratory of Analytical Science of Hebei Province, Baoding, P.R. China; Chen: Tianjin Institute of Agricultural Quality Standard and Testing Technology, Tianjin, P.R. China |
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| Title: | Immobilization mechanism of nano-hydroxyapatite on lead in the ryegrass rhizosphere soil under root confinement |
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| Source: | Bulletin of Environmental Contamination and Toxicology. Vol. 103, No. 2, August 2019, p. 330-335. |
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| Publishing Information: | New York, New York: Springer-Verlag New York |
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| # of Pages: | 6 |
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| Related Web URL: | https://link.springer.com/article/10.1007/s00128-019-02665-3#Abs1
Last checked: 08/14/2019
Notes: Abstract only |
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| Keywords: | TIC Keywords: Contamination; Immobilization; Lead; Lolium; Hydroxyapatite; Remediation; Rhizosphere; Tartaric acid; pH
Author-Supplied Keywords: Nano-hydroxyapatite; Ryegrass; Rhizosphere; Pb-contamination; Immobilization; Remediation
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| Abstract/Contents: | "The immobilization effect and mechanism of nano-hydroxyapatite(NHAP) on Pb in the ryegrass rhizosphere soil were studied by root-bag experiment. The speciation analysis results revealed that the residual Pb concentrations in the rhizosphere soil significantly increased after NHAP application. The acid-soluble and reducible Pb concentrations significantly decreased, indicating that NHAP had obviously immobilized Pb. Meanwhile, NHAP significantly promoted the secretion of tartaric acid from ryegrass roots, resulting the rhizosphere soil pH had been below that of the control group. This helped to relieve the stress of Pb on ryegrass, also promoted the dissolution of NHAP, resulting the formation of stable precipitation with more Pb ions. NHAP increased the rhizosphere soil pH by 0.03 to 0.17, which promoted the conversion of Pb to non-utilizable bioavailability. The total Pb mass balance indicated only a very small proportion Pb transferred to the shoots through ryegrass roots. The formation of pyromorphite by Pband NHAP in soil was accordingly to interpret the dominant mechanism for Pb immobilization." |
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| Language: | English |
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| References: | 17 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Liang, S.-x., X. Xi, L. Ding, Q. Chen, and W. Liu. 2019. Immobilization mechanism of nano-hydroxyapatite on lead in the ryegrass rhizosphere soil under root confinement. Bull. Environ. Contam. Toxicol. 103(2):p. 330-335. |
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| DOI: 10.1007/s00128-019-02665-3 |
| Web URL(s):
https://link.springer.com/article/10.1007/s00128-019-02665-3
Last checked: 08/14/2019
Access conditions: Item is within a limited-access website
https://link.springer.com/content/pdf/10.1007%2Fs00128-019-02665-3.pdf
Last checked: 08/14/2019
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2210537 |
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