高级搜索

水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性

,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

丛璟, 闫大海, 李丽, 蒋旭光, 周英男, 吕任生, 王琪. 水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性[J]. 环境工程学报, 2014, 8(10): 4456-4462.
引用本文: 丛璟, 闫大海, 李丽, 蒋旭光, 周英男, 吕任生, 王琪. 水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性[J]. 环境工程学报, 2014, 8(10): 4456-4462.
shu
Cong Jing, Yan Dahai, Li Li, Jiang Xuguang, Zhou Yingnan, Lyu Rensheng, Wang Qi. Condensation and absorption characteristics of cement raw meal for arsenic during co-processing in cement kilns[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4456-4462.
Citation: Cong Jing, Yan Dahai, Li Li, Jiang Xuguang, Zhou Yingnan, Lyu Rensheng, Wang Qi. Condensation and absorption characteristics of cement raw meal for arsenic during co-processing in cement kilns[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4456-4462.
shu

水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性

  • 1.

    浙江大学能源清洁利用国家重点实验室, 杭州 310027

  • 2.

    中国环境科学研究院固体废物 污染控制技术研究所, 北京 100012

  • 3.

    新疆环境保护科学研究院, 乌鲁木齐 830011

  • 基金项目:

    环保公益性行业科研专项（201209023）

    中挪合作项目（CHN 2150 09/059）

  • 中图分类号: X705

Condensation and absorption characteristics of cement raw meal for arsenic during co-processing in cement kilns

  • 1.

    State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

  • 2.

    Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • 3.

    Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China

  • Fund Project:

  • 摘要: 针对水泥生料开展了氮吸附与SEM测试分析，研究了水泥生料的比表面积，孔径结构和微观表面积。同时，利用管式回转炉和控温立式炉联用装置研究了砷元素在水泥生料上的吸附冷凝特性。结果表明，水泥生料的比表面积很小，微观表面结构致密无孔，砷元素主要是冷凝在生料表面上。进入吸附冷凝炉的重金属可以分为3部分，第1部分冷凝在管壁上，占80%左右；第2部分吸附/冷凝在生料上，占10%左右；第3部分随烟气释放到空气中，不到10%。水泥生料对砷的吸附冷凝量随时间的增加而增加，随温度的升高而降低。水泥生料对砷的吸附冷凝特性可用双常数速率方程拟合，拟合效果较好，计算得表观活化能在6~7 kJ/mol之间。此外，砷的初始浓度对水泥生料的吸附冷凝特性影响很小。
    Abstract: The basic physical characteristics of cement raw meal were investigated by SEM,BET and particle size analysis,such as surface area,pore volume and micro-structure.Additionally,the condensation and absorption characteristics of the cement raw meal for arsenic were experimentally studied in a coupling device of a rotary tube furnace and a vertical furnace with automatic temperature control.Results show that the cement raw meal has quite small surface area and compact structure.Consequently,arsenic vapor in the flue gas mainly condensates on the surface of cement raw meal during co-processing in cement kilns.Arsenic into the experimental furnace could be divided into three parts:condensing on the wall of the vertical furnace,which occupies approximately 80%; condensation and absorption on the cement raw meal,which occupies approximately 10%; releasing into the atmosphere,which occupies less than 10%.The condensation and absorption of the cement raw meal for arsenic increases with time,but decreases as temperature increases.The condensation and absorption kinetics can be well described by the double constant rate equation,and the apparent activation energy is between 6 kJ/mol and 7 kJ/mol.Besides,the initial concentration of arsenic has little effect on the condensation and absorption characteristics.
  • 加载中
  • [1] Locher G.,Schneider M.Die umsetzung der europischen Verbrennungsrichtlinie in der deutschen zementindustrie.Zement-Kalk-Gips International,2001,54(1):1-9
    [2] Serclerat I.,Moszkowicz P.,Pollet B.Retention mechanisms in mortars of the trace metals contained in Portland cement clinkers.Waste Management,2000,20(2-3):259-264
    [3] Kleppinger E.W.Cement clinker:an environmental sink for residues from hazardous waste treatment in cement kilns.Waste Management,1993,13(8):553-572
    [4] Karstensen K.H.Burning of hazardous wastes as co-fuel in a cement kiln:Does it affect the environmental quality of cement? Studies in Environmental Science,1994,60:433-451
    [5] Guo Qizhong,Eckert Jr.J O.Heavy metal outputs from a cement kiln co-fired with hazardous waste fuels.Journal of Hazardous Materials,1996,51(1-3):47-65
    [6] Li Yeqing,Wang Huanzhong,Zhang Jiang,et al.The industrial practice of co-processing sewage sludge in cement kiln.Procedia Environmental Sciences,2012,16:628-632
    [7] Eckert Jr.J.O.,Guo Qizhong.Heavy metals in cement and cement kiln dust from kilns co-fired with hazardous waste-derived fuel:Application of EPA leaching and acid-digestion procedures.Journal of Hazardous Materials,1998,59(1):55-93
    [8] Kunal,Siddique R.,Rajor A.Use of cement kiln dust in cement concrete and its leachate characteristics.Resources,Conservation and Recycling,2012,61:59-68
    [9] Zhang Junli,Liu Jianguo,Li Cheng,et al.Comparison of the fixation effects of heavy metals by cement rotary kiln co-processing and cement based solidification/stabilization.Journal of Hazardous Materials,2009,165(1-3):1179-1185
    [10] Sinyoung S.,Songsiriritthigul P.,Asavapisit S.,et al.Chromium behavior during cement-production processes:A clinkerization,hydration,and leaching study.Journal of Hazardous Materials,2011,191(1-3):296-305
    [11] Van der Sloot H.A.,Kosson D.S.Use of characterisation leaching tests and associated modelling tools in assessing the hazardous nature of wastes.Journal of Hazardous Materials,2012,207-208:36-43
    [12] Johansen V.C.,Hawkins G.J.Mercury emission and speciation from Portland cement kilns.Research & Development Information Serial No,2567a.Portland Cement Association.Skokie,Illinois,USA,2003
    [13] 李波,蔡玉良,辛美静,等.水泥窑处置废弃物中重金属的迁移行为研究进展.中国水泥,2010,(1):55-59 Li Bo,Cai Yuliang,Xin Meijing,et al.Progress in the migration behavior of heavy metals in cement kiln disposal of wastes.China Cement,2010,(1):55-59(in Chinese)
    [14] Sikkema J.K.,Alleman J.E.,Ong S.K.,et al.Mercury regulation,fate,transport,transformation,and abatement within cement manufacturing facilities:Review.Science of the Total Environment,2011,409(20):4167-4178
    [15] Schreiber Jr.R.J.,Kellett C.D.,Joshi N.Inherent mercury controls within the Portland cement kiln system.Research & Development Information Serial No,2841.Portland Cement Association.Skokie,Illinois,USA,2005
    [16] Mlakar T.L.,Horvat M.,Vuk T.,et al.Mercury species,mass flows and processes in a cement plant.Fuel,2010,89(8):1936-1945
    [17] Senior C.,Sarofim A.,Eddings E.Behavior and measurement of mercury in cement kilns//IEEE-IAS/PCA 45th Cement Industry Technical Conference.Dallas:IEEE,2003:233-248
    [18] 乔龄山.水泥厂利用废弃物的有关问题(二)—微量元素在水泥回转窑中的状态特性.水泥,2002,(12):1-8 Qiao Lingshan.Several problems about utilizing waste in cement plant (II)—Characteristics of trace elements in cement rotary kiln.Cement,2002,(12):1-8(in Chinese)
    [19] Eckert Jr.J.O.,Guo Qizhong.Heavy metals in cement and cement kiln dust from kilns co-fired with hazardous waste-derived fuel:Application of EPA leaching and acid-digestion procedures.Journal of Hazardous Materials,1998,59(1):55-93
    [20] European Commission.Integrated Pollution Prevention and Control (IPPC),Reference Document on Best Available Techniques in the Cement and Lime Manufacturing Industries.European Commission,2010
    [21] 闫大海,李璐,黄启飞,等.水泥窑共处置危险废物过程中重金属的分配.中国环境科学,2009,29(9):977-984 Yan Dahai,Li Lu,Huang Qifei,et al.Distribution of heavy metals during co-processing hazardous wastes in new dry cement kilns.China Environmental Science,2009,29(9):977-984(in Chinese)
    [22] Emission Measurement Center.Method 29-Determination of metal emission from stationary sources,Technical Support Division.OAOPS,EPA 1996
    [23] 近藤精一,石川达雄,安部郁夫.吸附科学(原著第2版).北京:化学工业出版社,2006
    [24] 陈涌英,孙予罕,丁云杰,等.吸收与催化.郑州:河南科学技术出版社,2001
    [25] 刘希尧.工业催化剂分析测试表征.北京:烃加工出版社,1990
    [26] Barton R.G.,Clark W.D.,Seeker W.R.Fate of metals in waste combustion systems.Combustion Science and Technology,1990,74(1-6):327-342
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1602
  • HTML全文浏览数:  835
  • PDF下载数:  1007
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-06-21
  • 刊出日期:  2014-09-28
丛璟, 闫大海, 李丽, 蒋旭光, 周英男, 吕任生, 王琪. 水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性[J]. 环境工程学报, 2014, 8(10): 4456-4462.
引用本文: 丛璟, 闫大海, 李丽, 蒋旭光, 周英男, 吕任生, 王琪. 水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性[J]. 环境工程学报, 2014, 8(10): 4456-4462.
shu
Cong Jing, Yan Dahai, Li Li, Jiang Xuguang, Zhou Yingnan, Lyu Rensheng, Wang Qi. Condensation and absorption characteristics of cement raw meal for arsenic during co-processing in cement kilns[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4456-4462.
Citation: Cong Jing, Yan Dahai, Li Li, Jiang Xuguang, Zhou Yingnan, Lyu Rensheng, Wang Qi. Condensation and absorption characteristics of cement raw meal for arsenic during co-processing in cement kilns[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4456-4462.
shu

水泥窑共处置过程中水泥生料对砷的吸附/冷凝特性

  • 1.  浙江大学能源清洁利用国家重点实验室, 杭州 310027
  • 2.  中国环境科学研究院固体废物 污染控制技术研究所, 北京 100012
  • 3.  新疆环境保护科学研究院, 乌鲁木齐 830011
  • 收稿日期:  2014-06-21
基金项目:

环保公益性行业科研专项（201209023）

中挪合作项目（CHN 2150 09/059）

摘要: 针对水泥生料开展了氮吸附与SEM测试分析，研究了水泥生料的比表面积，孔径结构和微观表面积。同时，利用管式回转炉和控温立式炉联用装置研究了砷元素在水泥生料上的吸附冷凝特性。结果表明，水泥生料的比表面积很小，微观表面结构致密无孔，砷元素主要是冷凝在生料表面上。进入吸附冷凝炉的重金属可以分为3部分，第1部分冷凝在管壁上，占80%左右；第2部分吸附/冷凝在生料上，占10%左右；第3部分随烟气释放到空气中，不到10%。水泥生料对砷的吸附冷凝量随时间的增加而增加，随温度的升高而降低。水泥生料对砷的吸附冷凝特性可用双常数速率方程拟合，拟合效果较好，计算得表观活化能在6~7 kJ/mol之间。此外，砷的初始浓度对水泥生料的吸附冷凝特性影响很小。

English Abstract

    全文HTML

参考文献 (26)

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