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Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment

Overview of attention for article published in SpringerPlus, July 2016
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Title
Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment
Published in
SpringerPlus, July 2016
DOI 10.1186/s40064-016-2492-y
Pubmed ID
Authors

Jinfeng Xing, Tiantian Hu, Long Cang, Dongmei Zhou

Abstract

The particle size of apatite is one of the critical factors that influence the adsorption of heavy metals on apatite in the remediation of heavy metal contaminated soils using apatite. However, little research has been done evaluating the impact of different particle sizes of apatite on immobilization remediation of heavy metal polluted soils in field. In this study, the adsorption isothermal experiments of copper on three kinds of apatite was tested, and the field experiment by using different particle sizes apatite [nano-hydroxyapatite (NAP), micro-hydroxyapatite (MAP), ordinary particle apatite (OAP)] at a same dosage of 25.8 t/ha (1.16 %, W/W) was also conducted. Ryegrass was chosen as the test plant. The ryegrass biomass, the copper contents in ryegrass and the copper fractionations in soil were determined after field experiments. Results of adsorption experiments showed that the adsorption amounts of copper on OAP was the lowest among different particles. The adsorption amounts of copper on MAP was higher than NAP at high copper equilibrium concentration (>1 mmol L(-1)), an opposite trend was obtained at low copper concentration (<1 mmol L(-1)). In the field experiment, we found that the application of different apatites could effectively increase the soil pH, decrease the available copper concentration in soil, provide more nutrient phosphate and promote the growth of ryegrass. The ryegrass biomass and the copper accumulation in ryegrass were the highest in MAP among all treatments. The effective order of apatite in phytoremediation of copper contaminated field soil was MAP > NAP > OAP, which was attributed to the high adsorption capacity of copper and the strong releasing of phosphate by MAP.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 18%
Student > Master 6 18%
Researcher 4 12%
Student > Bachelor 3 9%
Other 2 6%
Other 1 3%
Unknown 11 33%
Readers by discipline Count As %
Environmental Science 6 18%
Agricultural and Biological Sciences 6 18%
Engineering 3 9%
Earth and Planetary Sciences 2 6%
Biochemistry, Genetics and Molecular Biology 1 3%
Other 2 6%
Unknown 13 39%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 August 2016.
All research outputs
#22,759,802
of 25,374,917 outputs
Outputs from SpringerPlus
#1,499
of 1,875 outputs
Outputs of similar age
#337,898
of 380,100 outputs
Outputs of similar age from SpringerPlus
#231
of 298 outputs
Altmetric has tracked 25,374,917 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
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