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	Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment
	Xing, Jinfeng1,2; Hu, Tiantian1; Cang, Long1; Zhou, Dongmei1
刊名	Springerplus
	2016-07-26
卷号	5页码:16
关键词	Apatite Particle size Copper Adsorption Field experiment
ISSN号	2193-1801
DOI	10.1186/s40064-016-2492-y
通讯作者	Cang, long(canglong@issas.ac.cn)
英文摘要	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 [nanohydroxyapatite (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.
WOS关键词	HEAVY-METAL ; PB IMMOBILIZATION ; AQUEOUS-SOLUTIONS ; MINERAL APATITE ; SINGLE-METAL ; HYDROXYAPATITE ; SORPTION ; REMOVAL ; LEAD ; CU
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
语种	英语
出版者	SPRINGER INTERNATIONAL PUBLISHING AG
WOS记录号	WOS:000381637800015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375099
专题	中国科学院大学
通讯作者	Cang, Long
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xing, Jinfeng,Hu, Tiantian,Cang, Long,et al. Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment[J]. Springerplus,2016,5:16.
APA	Xing, Jinfeng,Hu, Tiantian,Cang, Long,&Zhou, Dongmei.(2016).Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment.Springerplus,5,16.
MLA	Xing, Jinfeng,et al."Remediation of copper contaminated soil by using different particle sizes of apatite: a field experiment".Springerplus 5(2016):16.

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