高级搜索

水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥

,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

谢华明, 曾光明, 罗文连, 王川, 黄兢, 徐海音, 杨朝晖. 水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥[J]. 环境工程学报, 2013, 7(3): 1121-1127.
引用本文: 谢华明, 曾光明, 罗文连, 王川, 黄兢, 徐海音, 杨朝晖. 水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥[J]. 环境工程学报, 2013, 7(3): 1121-1127.
shu
Xie Huaming, Zeng Guangming, Luo Wenlian, Wang Chuan, Huang Jing, Xu Haiyin, Yang Zhaohui. Stabilization/solidification of heavy metal contaminated sediment using cement, fly ash and DTCR[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1121-1127.
Citation: Xie Huaming, Zeng Guangming, Luo Wenlian, Wang Chuan, Huang Jing, Xu Haiyin, Yang Zhaohui. Stabilization/solidification of heavy metal contaminated sediment using cement, fly ash and DTCR[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1121-1127.
shu

水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥

  • 1.

    湖南大学环境科学与工程学院,长沙 410082

  • 2.

    环境生物与控制教育部重点实验室(湖南大学),长沙 410082

  • 3.

    湖南华亿市政设计有限公司,长沙 410007

  • 基金项目:

    国家自然科学基金资助项目(30970105和51078131),国家"水体污染控制与治理"科技重大专项(2009ZX07212-001-02)

    长沙科技计划重点资助项目(K0802151-31)

  • 中图分类号: X705

Stabilization/solidification of heavy metal contaminated sediment using cement, fly ash and DTCR

  • 1.

    College of Environmental Science and Engineering, Hunan University, Changsha 410082, China

  • 2.

    Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China

  • 3.

    Hunan HuaYi Municipal Design Co., Ltd., Changsha 410007, China

  • Fund Project:

摘要

  • 摘要: 采用水泥、粉煤灰及有机硫稳定剂DTCR固化/稳定化处理重金属污染的底泥,考察固化体的抗压强度及重金属浸出毒性,确定了底泥固化/稳定化的最佳工艺条件。结果表明:仅用水泥固化/稳定化重金属污染底泥,固化体抗压强度随水泥用量的增加而上升,重金属浸出浓度则下降,当水泥∶干底泥质量比为0.6∶1.0时,固化体7 d抗压强度能达到0.99 MPa的标准值;进一步研究发现,水泥∶粉煤灰∶干底泥质量比为0.54∶0.06∶1.0时,重金属浸出浓度有所上升,但7 d及28 d抗压强度仍能分别达到1.2 MPa和2.8 MPa;加入DTCR后,当水泥∶粉煤灰∶DTCR∶干底泥质量比为0.54∶0.06∶0.012∶1.0时,固化体7 d及28 d抗压强度分别为1.1 MPa和2.1 MPa,醋酸缓冲溶液法浸出的Cd、Pb、Zn和Cu浓度分别为0.102、0.189、0.180和0.032 mg/L。
    Abstract: A cement-fly ash-dithiocarbamate(DTCR)system was used to solidify and stabilize (S/S) river bottom sediments containing heavy metals, the optimum conditions were selected by testing of compressive strength and leaching toxicity. The results demonstrated that with the dosage of cement increased, compressive strength of the solidified products was also enhanced, but the concentration of heavy metals in leachate decreased. When the ratio of cement to dried sediment reached to 0.6, the compressive strength of the cement solidified products (after 7 d) was higher than the standard value of 0.98 MPa. Further studies showed that the compressive strengths of solidified products from 7 d and 28 d were 1.2 MPa and 2.7 MPa, respectively, when the mass ratio of cement∶ flyash∶ sediment was 0.54∶0.06∶1.0, however the leaching concentration of heavy metal increased. When cement∶flyash∶DTCR∶sediment was 0.54∶0.06∶0.012∶1.0, the compressive strengths of solidified products from 7 d and 28 d could reach to 1.1 MPa and 2.1 MPa, respectively. And after handled with the acetic acid buffer solution method the leaching concentration of Cd, Pb,Zn and Cu were 0.102, 0.189,0.180 and 0.033 mg/L, respectively.
  • [1] 窦佩琼,候方东,包晓风,等. 株洲市清水塘工业区地表水底泥重金属污染评价. 四川环境,2008,27(4): 74-78 Dou Peiqiong,Hou Fangdong,Bao Xiaofeng,et al. Evaluation of heavy metals pollution in bottom sediment of surface water in Qingshuitang District of Zhuzhou City. Sichuan Environment,2008,27(4):74-78 (in Chinese)
    [2] Gougar M. L. D., Scheetz B. Z., Roy D. M.Ettringite and C—S—H Portland cement phases for waste ion immobilization: A review.Waster Management,1996,16 (4):295-303
    [3] Peng Jianfeng, Song Yonghui, Yuan Peng,et al. The remediation of heavy metals contaminated sediment. Journal of Hazardous Materials,2009,161(2/3):633-640
    [4] 贾晓蕾,张盼月,曾光明. 粉煤灰掺用量对水泥固化/稳定重金属污染底泥的影响. 安全与环境学报,2010,10(5):50-54 Jia Xiaolei, Zhang Panyue, Zeng Guangming.Effect of coalfly ash addition on cement stabi1ization/solidification of heavy metal contaminated sediments. Journal of Safety and Environment,2010,10 (5): 50-54 (in Chinese)
    [5] Poon C. S., Qiao X. C., Lin Z. S. Pozzolanic properties of reject fly ash in blended cement pastes. Cement and Concrete Research, 2003,33(11):1857-1865
    [6] 高波,刘淑玲,王敏,等. 危险废物水泥固化工艺的工程设计与探讨. 环境工程,2010,28(3):95-98 Gao Bo, Liu Shuling,Wang Min,et al. Engineering design and discussion on cement solidification process of hazardous waste. Environmental Engineering,2010,28(3):95-98(in Chinese)
    [7] 蒋建国,王伟,李国鼎,等. 重金属螯合剂处理焚烧飞灰的稳定化技术研究. 环境科学,1999,20(3):13-17 Jiang Jianguo,Wang Wei,Li Guoding,et al. Experimental study on the chemical stabilization technology in treating with fly ash using heavy metal chelating agent. Environmental Science,1999,20(3):13-17(in Chinese)
    [8] Sukandar, Tri Padmi, Masaru Tanaka,et al. Chemical stabilization of medical waste fly ash using chelating agent and phosphates: Heavy metals and ecotoxicity evaluation. Waste Management,2009,29(7):2065-2070
    [9] 李倩倩,李义久,相波. 高分子螯合剂在重金属废水处理中的应用. 工业水处理,2004,24(7):5-8 Li Qianqian, Li Yijiu, Xiang Bo.Application of the macromolecule-chelating agent to the treatment of heavy metal wastewater. Industrial Water Treatment,2004,24(7):5-8(in Chinese)
    [10] Zhang X. Y., Wang Q. C., Zhang S. Q., et al. Stabilization/solidification (S/S) of mercury-contaminated hazardous wastes using thiol-functionalized zeolite and Portland cement. Journal of Hazardous Materials, 2009,168(2/3):1575-1580
    [11] Mangialardi T.,Paolini A. E.,Polettini A.,et al. Optimization of the solidification/stabilization process of MSW fly ash in cementations matrices. Journal of Hazardous Materials,1999,B70(1/2):53-70
    [12] 王建华,肖佳,陈雷,等. 粉煤灰对水泥水化与强度的影响. 粉煤灰综合利用, 2009(5):34-36 Wang jianhua,Xiao jia,Chen lei,et al. Influence on cement hydration and strength of fly ash. Fly Ash Comprehensive Utilization, 2009(5):34-36(in Chinese)
    [13] 乔秀臣,林宗寿,寇世聪,等. 废弃粗粉煤灰-水泥系统固化重金属废弃物的探讨. 武汉理工大学学报,2005,27(3):23-26 Qiao Xiucheng, Lin Zongshou, Kou Shicong, et al. Study of solidification and stabilization of heavy metals using reject fly ash blended cement pastes. Journal of Wuhan University of Technology,2005,27(3):23-26 (in Chinese)
    [14] 范昭平,朱伟,张春雷. 有机质含量对淤泥固化效果影响的试验研究. 岩土力学,2005,26(8):1327-1330 Fan Zhaoping,Zhu Wei,Zhang Chunlei. Experimental study on influence of organic matter content on solidified dredging. Rock and Soil Mechanics,2005,26(8):1327-1330 (in Chinese)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2364
  • HTML全文浏览数:  1239
  • PDF下载数:  1842
  • 施引文献:  0
出版历程
  • 收稿日期:  2012-02-10
  • 刊出日期:  2013-03-18
谢华明, 曾光明, 罗文连, 王川, 黄兢, 徐海音, 杨朝晖. 水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥[J]. 环境工程学报, 2013, 7(3): 1121-1127.
引用本文: 谢华明, 曾光明, 罗文连, 王川, 黄兢, 徐海音, 杨朝晖. 水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥[J]. 环境工程学报, 2013, 7(3): 1121-1127.
shu
Xie Huaming, Zeng Guangming, Luo Wenlian, Wang Chuan, Huang Jing, Xu Haiyin, Yang Zhaohui. Stabilization/solidification of heavy metal contaminated sediment using cement, fly ash and DTCR[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1121-1127.
Citation: Xie Huaming, Zeng Guangming, Luo Wenlian, Wang Chuan, Huang Jing, Xu Haiyin, Yang Zhaohui. Stabilization/solidification of heavy metal contaminated sediment using cement, fly ash and DTCR[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1121-1127.
shu

水泥、粉煤灰及DTCR固化/稳定化重金属污染底泥

  • 1.  湖南大学环境科学与工程学院,长沙 410082
  • 2.  环境生物与控制教育部重点实验室(湖南大学),长沙 410082
  • 3.  湖南华亿市政设计有限公司,长沙 410007
  • 收稿日期:  2012-02-10
基金项目:

国家自然科学基金资助项目(30970105和51078131),国家"水体污染控制与治理"科技重大专项(2009ZX07212-001-02)

长沙科技计划重点资助项目(K0802151-31)

摘要: 采用水泥、粉煤灰及有机硫稳定剂DTCR固化/稳定化处理重金属污染的底泥,考察固化体的抗压强度及重金属浸出毒性,确定了底泥固化/稳定化的最佳工艺条件。结果表明:仅用水泥固化/稳定化重金属污染底泥,固化体抗压强度随水泥用量的增加而上升,重金属浸出浓度则下降,当水泥∶干底泥质量比为0.6∶1.0时,固化体7 d抗压强度能达到0.99 MPa的标准值;进一步研究发现,水泥∶粉煤灰∶干底泥质量比为0.54∶0.06∶1.0时,重金属浸出浓度有所上升,但7 d及28 d抗压强度仍能分别达到1.2 MPa和2.8 MPa;加入DTCR后,当水泥∶粉煤灰∶DTCR∶干底泥质量比为0.54∶0.06∶0.012∶1.0时,固化体7 d及28 d抗压强度分别为1.1 MPa和2.1 MPa,醋酸缓冲溶液法浸出的Cd、Pb、Zn和Cu浓度分别为0.102、0.189、0.180和0.032 mg/L。

English Abstract

    全文HTML

参考文献 (14)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心