高级搜索

铜渣基磷酸铁化学键合材料固化重金属Pb

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

李娜秋, 罗中秋, 周新涛, 张建辉, 王昊, 和森. 铜渣基磷酸铁化学键合材料固化重金属Pb[J]. 环境工程学报, 2018, 12(11): 3213-3220. doi: 10.12030/j.cjee.201806004
引用本文: 李娜秋, 罗中秋, 周新涛, 张建辉, 王昊, 和森. 铜渣基磷酸铁化学键合材料固化重金属Pb[J]. 环境工程学报, 2018, 12(11): 3213-3220. doi: 10.12030/j.cjee.201806004
shu
LI Naqiu, LUO Zhongqiu, ZHOU Xintao, ZHANG Jianhui, WANG Hao, HE Sen. Solidification of Pb using chemically bonded iron phosphate ceramics prepared with copper slag[J]. Chinese Journal of Environmental Engineering, 2018, 12(11): 3213-3220. doi: 10.12030/j.cjee.201806004
Citation: LI Naqiu, LUO Zhongqiu, ZHOU Xintao, ZHANG Jianhui, WANG Hao, HE Sen. Solidification of Pb using chemically bonded iron phosphate ceramics prepared with copper slag[J]. Chinese Journal of Environmental Engineering, 2018, 12(11): 3213-3220. doi: 10.12030/j.cjee.201806004
shu

铜渣基磷酸铁化学键合材料固化重金属Pb

  • 1.

    昆明理工大学化学工程学院，昆明 650500

  • 基金项目:

    国家自然科学基金资助项目（51662024）

    昆明理工大学引进人才科研启动基金资助项目（KKSY201605021）

    昆明理工大学分析测试基金资助项目（2016T20160009）

    云南科技厅青年基金资助项目（2017FD093）

Solidification of Pb using chemically bonded iron phosphate ceramics prepared with copper slag

  • 1.

    School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China

  • Fund Project:

  • 摘要: 铜渣堆积会造成资源浪费和环境污染等问题，利用铜渣与磷酸盐反应制备铜渣基磷酸铁化学键合材料(CBIPCs)，并用其固化重金属Pb。研究铜渣与磷酸二氢铵(m(CS)/m(P))配比、缓凝剂以及硝酸铅掺量对CBIPCs固化重金属Pb的影响。结果表明：随着硝酸铅掺量的增加，固化体抗压强度降低，Pb毒性浸出浓度略增大；在m(CS)/m(P)=3:1和硼砂掺量为2%的条件下，当硝酸铅掺量为12%，固化体自然养护28 d的抗压强度仍达到24.5 MPa，Pb毒性浸出浓度为0.086 mg·L-1，远低于《危险废物鉴别标准 浸出毒性鉴别》(GB 5085.3-2007) 要求的最高限值5.0 mg·L-1。XRD和SEM/EDS分析表明，固化体中生成了PbHPO4、Pb3(PO4)2、Pb5(PO4)OH等铅类磷酸盐产物，并被胶凝相物质紧密包裹。铜渣与磷酸盐反应制备的铜渣基磷酸铁化学键合材料(CBIPCs)，可通过化学键合和物理固封双重作用实现对重金属Pb的稳定固化。
    Abstract: Copper slag accumulation in dumps and landfills not only occupies large amount of lands, but also causes waste of resource and serious environment pollution. In this study, chemically bonded iron phosphate ceramics (CBIPCs) was prepared through the reaction between copper slag and acid phosphate to solidify the heavy metal Pb. The influences of the raw material ratios including the copper slag-to- acid phosphate mass ratio (CS/P), the borax dosage and the addition of lead nitrate on the properties of CBIPCs and the leaching characteristics of Pb were investigated. The results indicated that the compressive strength of solidified form decreased and the toxic leaching concentration of Pb slightly rose with the increase of lead nitrate addition. When the solidified form was prepared at the conditions: m(CS)/m(P) of 3.0, borax addition of 2.0% and lead nitrate addition amount of 12.0%, its compressive strength at 28 d natural curing could reach 24.5 MPa and the toxic leaching concentration of Pb was only 0.086 mg·L-1, which is far below the maximum limit of 5.0 mg·L-1 required by the Identification Standards for Hazardous Wastes Identification for Extraction Toxicity (GB 5085.3-2007). The analysis of XRD patterns and SEM/EDS images showed that insoluble lead phosphates, such as PbHPO4, Pb3(PO4)2, Pb5(PO4)OH were formed and encapsulated by CBIPCs. The immobilization of Pb with CBIPCs can be attributed to the chemical bond between phosphate and Pb and the physical encapsulation of heavy metal Pb.
  • 加载中
  • [1] GORAI B,JANA R K, PREMCHAN D.Characteristics and utilisation of copper slag:A review[J].Resources Conservation & Recycling,2003,39(4):299-313 10.1016/S0921-3449(02)00171-4
    [2] ALP I,DEVECI H, SüNGüN H.Utilization of flotation wastes of copper slag as raw material in cement production[J].Journal of Hazardous Materials,2008,159(2/3):390-395 10.1016/j.jhazmat.2008.02.056
    [3] SHI C, MEYER C, BEHNOOD A.Utilization of copper slag in cement and concrete[J].Resources Conservation & Recycling, 2008,52(10):1115-1120 10.1016/j.resconrec.2008.06.008
    [4] 姜平国,吴朋飞,胡晓军,等. 铜渣综合利用研究现状及其新技术的提出[J]. 中国矿业,2016,25(2):76-79
    [5] AL-JABRI K, TAHA R, AL-GHASSANI M.Use of copper slag and cement by-pass dust as cementitious materials[J].Cement Concrete & Aggregates,2002,24(1):7-12 10.1520/CCA10485J
    [6] 赖祥生, 黄红军. 铜渣资源化利用技术现状[J]. 金属矿山,2017(11):205-208
    [7] AL-JABRI K S, AL-SAIDY A H, TAHA R.Effect of copper slag as a fine aggregate on the properties of cement mortars and concrete[J].Construction & Building Materials,2011,25(2):933-938 10.1016/j.conbuildmat.2010.06.090
    [8] 周少龙,郝璟珂,赵宇,等. 磨细工业铜渣-水泥胶凝体系性能影响[J]. 广东建材,2017,33(11):19-21
    [9] MOURA W A,GONCALVES J P, LIMA M B L.Copper slag waste as a supplementary cementing material to concrete[J].Journal of Materials Science,2007,42(7):2226-2230 10.1007/s10853-006-0997-4
    [10] MITHUN B M, NARASIMHAN M C.Performance of alkali activated slag concrete mixes incorporating copper slag as fine aggregate[J].Journal of Cleaner Production,2016,112(1):837-844 10.1016/j.jclepro.2015.06.026
    [11] DEJA J.Immobilization of Cr6+, Cd2+, Zn2+, and Pb2+, in alkali-activated slag binders[J].Cement & Concrete Research,2002, 32(12):1971-1979 10.1016/S0008-8846(02)00904-3
    [12] HEKAL E, KISHAR E, HEGAZI W, et al.Immobilization of Co (II) ions in cement pastes and their effects on the hydration characteristics[J].Journal of Materials Science & Technology,2011,27(1):74-80 10.1016/S1005-0302(11)60029-7
    [13] YAKUBU Y, ZHOU J, PING D, et al.Effects of pH dynamics on solidification/stabilization of municipal solid waste incineration fly ash[J].Journal of Environmental Management,2018,207:243-248 10.1016/j.jenvman.2017.11.042
    [14] 郝旭涛,周新涛,陈卓,等. 磷酸盐化学键合材料固化/稳定化重金属研究进展[J]. 硅酸盐通报,2015,34(8):2208-2213
    [15] WAGH A S.Chemically Bonded Phosphate Ceramics [M].Netherlands :Elsevier,2016:99-113
    [16] 国家环境保护部.固体废物浸出毒性浸出方法: 水平振荡法: HJ 557-2010[S]. 北京:中国环境科学出版社,2010
    [17] 石军兵,赖振宇,卢忠远,等. 铅离子对复合磷酸盐磷酸镁水泥水化硬化特性的影响[J]. 功能材料,2015,46(2):2060-2065
    [18] 卢灿,丁铸. 磷酸盐化学结合陶瓷材料的材料配合比及其机理研究[J]. 功能材料,2015,46(s2):165-170
    [19] ZHANG Z,REN J,WANG M, et al.Competitive immobilization of Pb in an aqueous ternary-metals system by soluble phosphates with varying pH[J].Chemosphere,2016,159:58-65 10.1016/j.chemosphere.2016.05.082
    [20] 赖振宇,钱觉时,卢忠远,等. 原料及配比对磷酸镁水泥性能影响的研究[J]. 武汉理工大学学报,2011,33(10):16-20
    [21] MAHYAR M,ERDOGAN S T.Phosphate-activated high-calcium fly ash acid-base cements[J].Cement and Concrete Composites,2015,63: 96-103 10.1016/j.chemosphere.2016.05.082
    [22] HALL D A,STEVEN R,EL-JAZAIRI B.The effect of retarders on the microstructure and mechanical properties of magnesia–phosphate cement mortar[J].Cement & Concrete Research,2001,31(3):455-465 10.1016/S0008-8846(00)00501-9
    [23] LI Y, SUN J, LI J, et al.Effects of fly ash, retarder and calcination of magnesia on properties of magnesia–phosphate cement[J].Advances in Cement Research,2015,27(7):373-380 10.1680/adcr.14.00029
    [24] 杨建明,钱春香,焦宝祥,等. 缓凝剂硼砂对磷酸镁水泥水化硬化特性的影响[J]. 材料科学与工程学报,2010,28(1):31-35
    [25] 石军兵. 重金属离子对磷酸镁水泥水化的影响及其赋存状态研究[D].绵阳:西南科技大学,2015
    [26] 马保国, 王景然, 李相国,等. 硝酸铅对磷酸镁水泥水化的影响及浸出毒性[J]. 武汉理工大学学报, 2011,33(10):21-23
    [27] 杜采颐,严云,胡志华. 化学结合磷酸盐胶凝材料对Pb(Ⅱ)滞留性的研究[J]. 安全与环境学报,2008,8(4):45-48
    [28] 孙道胜,孙鹏,王爱国,等. 磷酸镁水泥的研究与发展前景[J]. 材料导报, 2013, 27(9):70-75
    [29] BUJ I,TORRAS J,ROVIRA M, et al.Leaching behaviour of magnesium phosphate cements containing high quantities of heavy metals[J].Journal of Hazardous Materials,2010,175(1/2/3):789-794 10.1016/j.jhazmat.2009.10.077
    [30] SANDERSON P,NAIDU R,BOLAN N, et al.Chemical stabilisation of lead in shooting range soils with phosphate and magnesium oxide: Synchrotron investigation[J].Journal of Hazardous Materials,2015,299(1):395-403 10.1016/j.jhazmat.2015.06.056
    [31] SU Y, YANG J, LIU D, et al.Effects of municipal solid waste incineration fly ash on solidification/stabilization of Cd and Pb by magnesium potassium phosphate cement[J].Journal of Environmental Chemical Engineering,2016,4(1):259-265 10.1016/j.jece.2015.11.025.
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2438
  • HTML全文浏览数:  2301
  • PDF下载数:  83
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-11-12

铜渣基磷酸铁化学键合材料固化重金属Pb

  • 1. 昆明理工大学化学工程学院，昆明 650500
基金项目:

国家自然科学基金资助项目（51662024）

昆明理工大学引进人才科研启动基金资助项目（KKSY201605021）

昆明理工大学分析测试基金资助项目（2016T20160009）

云南科技厅青年基金资助项目（2017FD093）

摘要: 铜渣堆积会造成资源浪费和环境污染等问题，利用铜渣与磷酸盐反应制备铜渣基磷酸铁化学键合材料(CBIPCs)，并用其固化重金属Pb。研究铜渣与磷酸二氢铵(m(CS)/m(P))配比、缓凝剂以及硝酸铅掺量对CBIPCs固化重金属Pb的影响。结果表明：随着硝酸铅掺量的增加，固化体抗压强度降低，Pb毒性浸出浓度略增大；在m(CS)/m(P)=3:1和硼砂掺量为2%的条件下，当硝酸铅掺量为12%，固化体自然养护28 d的抗压强度仍达到24.5 MPa，Pb毒性浸出浓度为0.086 mg·L-1，远低于《危险废物鉴别标准 浸出毒性鉴别》(GB 5085.3-2007) 要求的最高限值5.0 mg·L-1。XRD和SEM/EDS分析表明，固化体中生成了PbHPO4、Pb3(PO4)2、Pb5(PO4)OH等铅类磷酸盐产物，并被胶凝相物质紧密包裹。铜渣与磷酸盐反应制备的铜渣基磷酸铁化学键合材料(CBIPCs)，可通过化学键合和物理固封双重作用实现对重金属Pb的稳定固化。

English Abstract

参考文献 (31)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心