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钝化剂对铅锌尾矿砂中重金属的固化作用

Keywords: 钝化剂,尾矿砂,重金属,化学形态,湘西

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Abstract:

铅锌尾矿砂重金属含量高,对环境危害大。为了减缓铅锌尾矿砂的重金属污染风险,采用室内培养实验方法,在铅锌尾矿砂中添加油菜秸秆、芒草秸秆、水稻秸秆、石灰和磷酸一铵等钝化剂,并通过DTPA及Tessier连续提取铅、锌、镉的化学形态,评价钝化剂对铅、锌、镉的移动性和生物有效性的影响。结果表明,油菜秸秆、芒草秸秆、水稻秸秆、石灰和磷酸一铵均显著地降低Cd的生物有效性及其迁移能力;磷酸一铵、油菜秸秆均能有效地降低尾矿砂中Pb的生物有效性及其迁移能力,尤其是磷酸一铵有极显著的效果;油菜秸秆、芒草秸秆、水稻秸秆和磷酸一铵均能有效地降低尾矿砂中Zn的生物有效性及其迁移能力。尾矿砂中DTPA态Cd、Zn与交换态、碳酸盐结合态Cd、Zn极显著正相关,DTPA态Pb与碳酸盐结合态Pb极显著正相关。从Pb、Cd、Zn生物有效态含量的减少方面考虑,油菜秸秆和磷酸一铵是较好的铅锌尾矿砂原位钝化剂。

References

[1]  束文圣;叶志鸿;张志权,华南铅锌尾矿生态恢复的理论与实践,生态学报,2003.
[2]  衣德强;尤六亿;范庆霞.梅山铁矿尾矿综合利用研究[J].矿冶工程,2006(2)doi:10.3969/j.issn.0253-6099.2006.02.011
[3]  Kumpiene J;Lagerkvist A;Maurice C,Stabilization of As,Cr,Cu,Pb and Zn in soil using amendments:A review,Waste Management,2008.
[4]  Hamon R E;McLaughlin M J;Cozen G,Mechanisms of attenuation of metal availability in situ remediation treatments,Environmental Science and Technology,2002.
[5]  敖子强;翟丽雅;林文杰.土法炼锌区土壤-白菜系统中重金属的化学调控研究[J].地球与环境,2007(2)doi:10.3969/j.issn.1672-9250.2007.02.003
[6]  Bolan N S;Naidu R;Khan M A R,The effects anion sorption on sorption and leaching of cadmium,Australian Journal of Soil Research,1999(3).
[7]  Ure A M;Quevauviller P H;Muntau H,Speciation of heavy metal in solids and sediments:An account of the improvement and harmonization of extraction techniques undertaken the auspices of the BCR of the Gommission of the European Communities,International Journal of Environment Analytical Chemistry,1993.
[8]  Sauve S;Manna S;Turmel M C,Solid solution partitioning of Cd,Cu,Ni,Pb and Zn in the organic horizons of a forest soil,Environmental Science and Technology,2003.
[9]  Stevenson F J,腐殖质化学,北京:北京农业大学出版社,1994.
[10]  张青;李菊梅;徐明岗.改良剂对复合污染红壤中镉锌有效性的影响及机理[J].农业环境科学学报,2006(4)
[11]  Walker D J;Clemente R;Roig A,The effects of soil amendments on heavy metal bioavailability in two contaminated Mediterranean soils,Environmental Pollution,2003(2).
[12]  王果;李建超;杨佩玉.有机物料影响下土壤溶液中镉形态及其有效性研究[J].环境科学学报,2000(5)
[13]  陈同斌;陈志军,土壤中溶解性有机质及其对污染物吸附和解吸行为的影响,植物营养与肥料学报,1998(3).
[14]  王碧玲;谢正苗;孙叶芳.磷肥对铅锌矿污染土壤中铅毒的修复作用[J].环境科学学报,2005(9)
[15]  Zhu Y G;Chen S B;Yang J C,Effects of soil amendments on lead uptake by two vegetable crops from a lead-contaminated soil from Anhui,China,Environmental Internaional,2004.
[16]  Chen S B;Zhu Y G;Ma Y B,The effect of grain size of rock phosphate amendment on metal immobilization in contaminated soils,Journal of Hazardous Materials B,2006.
[17]  周世伟;徐明岗.磷酸盐修复重金属污染土壤的研究进展[J].生态学报,2007(7)
[18]  Lee Tse-Ming;Lai Hung-Yu;Chen Zueng-Sang,Effect of chemical amendments on the concentration of cadmium and lead in long-term contaminated soils,Chemosphere,2004.
[19]  Cao R X;Ma L Q;Chen M,Phosphate-induced metal immobilization in a contaminated site,Environmental Pollution,2003.
[20]  Brown S;Christensen B;Lombi E,An inter-laboratory study to test the ability of amendments to reduce the availability of Cd,Pb and Zn in situ,Environmental Pollution,2005.
[21]  Lombi E;Zhao F J;Zhang G,In situ fixation of metals in soils using bauxite residue:Chemical asesssment,Environmental Pollution,2002.
[22]  Karlsson T;Elgh-Dalgren K;Bjorn E,Complexation of cadmium to sulfur and oxygen functional groups in an organic soil,Geochimica et Cosmochimica Acta,2007.
[23]  Ma Q Y;Logan T J;Traina S J,Lead immobilization from aqueous solutions and contaminated soils using phosphate rocks,Environmental Science and Technology,1995.
[24]  Ma Q Y;Choate A L;Rao G N,Effects of incubation and phosphate rock on lead extractability and speciation in contaminated soils,Journal of Environmental Quality,1997.
[25]  Tessier A;Campbell P G C;Bission M,Sequential extraction procedure for the speciation of particulate trace metals,Analytical Chemistry,1979.
[26]  王美青;章明奎.杭州市城郊土壤重金属含量和形态的研究[J].环境科学学报,2002(5)
[27]  Pueyo M;Lopex-San chez J F;Rauret G,Assessment of CaCl2,NaNO3 and NH4NO3 extraction procedures for the study of Cd,Cu,Pb and Zn extractability in contaminated soils,Analytica Chimica Acta,2004(2).
[28]  Castaldi P;Santona L;Melis P,Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth,Chemosphere,2005.

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