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Immobilization of cadmium in river sediment using phosphate solubilizing bacteria coupled with biochar-supported nano-hydroxyapatite

文献类型：期刊论文

作者Zhao, Xin1,2; Dai, Jianing1,2; Teng, Zedong3; Yuan, Junjun1,2; Wang, Gongting1,2; Luo, Wenqing1,2; Ji, Xiaonan4,5,6; Hu, Wei4,5; Li, Min1,2
刊名JOURNAL OF CLEANER PRODUCTION
出版日期2022-05-10
卷号348页码:9
ISSN号0959-6526
关键词Immobilization Cadmium Phosphate-solubilizing bacteria Biochar-supported nano-hydroxyapatite River sediment
DOI10.1016/j.jclepro.2022.131221
英文摘要Cadmium pollution in river sediment is serious and single remediation method is difficult to deal with. Thus, it is extremely urgent to remediate Cd contaminated river sediments. A new remediation system with phosphate solubilizing bacteria (PSBs) and biochar supported nano-hydroxyapatite (nHAP@BC) was provided to enhance the immobilization efficiency of Cd in this research. The passivation effect of PSB + nHAP@BC under different conditions and its mechanism were investigated. The results showed that the highest Cd2+ immobilization efficiency could reach 90% in the liquid medium when using PSB cooperated with 5:1 nHAP@BC in the condition of temperature 15-37 degrees C, pH = 7, initial Cd2+ concentration less than 0.5 mM. Meanwhile, the characterization results of XRD and FT-IR showed that Cd might exist in the form of Cd-HAP containing CdPO4. Furthermore, the simulated sediment remediation experiment indicated that the acid soluble fraction of Cd was reduced by 28% and transferred to the residual fraction. This work demonstrated that PSBs cooperated with nHAP@BC was an excellent candidate of passivation material for sediment Cd and could be considered as an effective way for immobilizing Cd in the future.
WOS关键词SULFATE-REDUCING BACTERIA ; LEAD-CONTAMINATED SOIL ; HEAVY-METAL POLLUTION ; REMEDIATION ; NANOHYDROXYAPATITE ; BIOSORPTION ; PHOSPHORUS ; MECHANISMS ; CAPACITY ; REMOVAL
资助项目National Natural Science Foundation of China[52070016] ; National Natural Science Foundation of China[51925901] ; Research Project of China Three Gorges Corporation[202103548]
WOS研究方向Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000789593200005
资助机构National Natural Science Foundation of China ; Research Project of China Three Gorges Corporation
源URL[http://ir.ipe.ac.cn/handle/122111/53141]  
专题中国科学院过程工程研究所
通讯作者Li, Min
作者单位1.Beijing Forestry Univ, Coll Environm Sci & Engn, 35 Qinghua East Rd, Beijing 100083, Peoples R China
2.Beijing Forestry Univ, Beijing Key Lab Source Control Technol Water Poll, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Inst Proc Engn, Beijing 100190, Peoples R China
4.Shanghai Invest Design & Res Inst Co Ltd, Shanghai 200335, Peoples R China
5.China Three Gorges Corp, YANGTZE Ecoenvironm Engn Res Ctr Shanghai, Shanghai 200335, Peoples R China
6.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Xin,Dai, Jianing,Teng, Zedong,et al. Immobilization of cadmium in river sediment using phosphate solubilizing bacteria coupled with biochar-supported nano-hydroxyapatite[J]. JOURNAL OF CLEANER PRODUCTION,2022,348:9.
APA Zhao, Xin.,Dai, Jianing.,Teng, Zedong.,Yuan, Junjun.,Wang, Gongting.,...&Li, Min.(2022).Immobilization of cadmium in river sediment using phosphate solubilizing bacteria coupled with biochar-supported nano-hydroxyapatite.JOURNAL OF CLEANER PRODUCTION,348,9.
MLA Zhao, Xin,et al."Immobilization of cadmium in river sediment using phosphate solubilizing bacteria coupled with biochar-supported nano-hydroxyapatite".JOURNAL OF CLEANER PRODUCTION 348(2022):9.

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来源：过程工程研究所

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