Comparison of Pb(II) Immobilized by Bone Char Meal and Phosphate Rock: Characterization and Kinetic Study
文献类型： 外文期刊
作者： Chen, Shibao 1 ; Ma, Yibing 1 ; Chen, Li 4 ; Wang, Liqun 1 ; Guo, Haitao 1 ;
作者机构： 1.Chinese Acad Agr Sci, Minist Agr, Key Lab Plant Nutr & Nutrient Cycling, Beijing 100081, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
4.Beijing Acad Agr & Forestry Sci, Inst Plant Protect & Environm Protect, Beijing 100097, Peoples R China
期刊名称：ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.804； 五年影响因子：3.399 ）
ISSN： 0090-4341
年卷期： 2010 年 58 卷 1 期
页码：
收录情况： SCI
摘要： Adsorption isotherms and kinetics of aqueous Pb(II) by bone char meal (BM) and phosphate rock (PR) were investigated using batch experiments. Pb removal was characterized and effects of pH and reaction time on Pb removal efficiency by BM/PR were also investigated. Results indicated that Pb removal efficiency by BM and PR is mainly controlled by dissolution of phosphatic components associated with apatite, followed by subsequent precipitation of geochemically stable pyromorphite [Pb(10) (PO(4))(6)(OH,Cl)(2)]. Sorption kinetics results indicated that Pb sorption onto BM or PR was generally biphasic, with initially fast reactions followed by slow and continuous reactions. Pb removal efficiency by BM and PR increased with increasing pH except at a pH higher than 6.15. Sorption isotherms showed that BM has a much higher Pb removal rate than PR in solution; the greater capability of BM than of PR to remove aqueous Pb indicates its potential as another promising way to remediate Pb-contaminated media.
- 相关文献
作者其他论文 更多>>
-
Residues and dietary risk assessment of fluazinam in root mustard after field experiments
作者：Chen, Li;Zhang, ZhenTao;Jing, Junjie;Zhao, Ercheng;Yu, Pingzhong;He, Min;Tao, Yan;Zhang, Jingwei;Li, Fugen
关键词：Fluazinam; Pesticide residue; Dissipation; Dietary risk assessment; Root mustard
-
Low pe plus pH induces inhibition of cadmium sulfide precipitation by methanogenesis in paddy soil
作者：Chen, Shibao;Wang, Meng;Chen, Li;Wang, Duo;Wang, Meng
关键词：Paddy soil; Pe plus pH; Cadmium mobilization; Methanogenesis; Sulfate reduction
-
Insight into the uptake, accumulation, and metabolism of the fungicide phenamacril in lettuce (Lactuca sativa L.) and radish (Raphanus sativus L.)
作者：Tao, Yan;Jing, Junjie;Yu, Pingzhong;He, Min;Zhang, Jinwei;Chen, Li;Jia, Chunhong;Zhao, Ercheng;Xing, Yinghui
关键词：Phenamacril; Fungicide; Uptake; Hydroxylation; Hydroponic vegetables
-
Residue behavior and risk assessment of pyraclostrobin and tebuconazole in peppers under different growing conditions
作者：Zhao, Ercheng;Xie, Anqi;Wang, Dong;Du, Xiaoying;Liu, Bingjie;Chen, Li;He, Min;Yu, Pingzhong;Jing, Junjie
关键词：Pyraclostrobin; Tebuconazole; Residue; Peppers; Risk assessment
-
Biotic ligand modeling to predict the toxicity of HWO4- and WO42- on wheat root elongation in solution cultures: Effects of pH and accompanying anions
作者：Li, Mengjia;Zhang, Fangyu;Liu, Jun;Song, Ningning;Li, Shaojing;Wang, Xuexia;Wang, Bin;Ma, Yibing
关键词：Biotic ligand model; Wheat; Root elongation; Tungsten (W); Toxicity
-
Uptake, Translocation, and Biotransformation of Neonicotinoid Imidaclothiz in Hydroponic Vegetables: Implications for Potential Intake Risks
作者：Tao, Yan;Jia, Chunhong;Jing, Junjie;Yu, Pingzhong;He, Min;Chen, Li;Zhao, Ercheng;Tao, Yan;Jia, Chunhong;Jing, Junjie;Yu, Pingzhong;He, Min;Chen, Li;Zhao, Ercheng;Zhao, Mingyu
关键词：imidaclothiz; neonicotinoid; uptake; metabolism; Q TOF-MS
-
Occurrence and dietary risk assessment of 37 pesticides in wheat fields in the suburbs of Beijing, China
作者：Tao, Yan;Jia, Chunhong;Jing, Junjie;Zhang, Jinwei;Yu, Pingzhong;He, Min;Wu, Junxue;Chen, Li;Zhao, Ercheng;Tao, Yan;Jia, Chunhong;Jing, Junjie;Zhang, Jinwei;Yu, Pingzhong;He, Min;Wu, Junxue;Chen, Li;Zhao, Ercheng
关键词：Wheat; Pesticide; Risk assessment; Residue; Distribution; Soil
