Jia Lutao,Cui Qiang,Mei Hao,et al.Preparation, properties and environmental safety of fired bricks made from lake silt and sewage sludge[J].Journal of Southeast University (Natural Science Edition),2016,46(6):1301-1307.[doi:10.3969/j.issn.1001-0505.2016.06.032]





Preparation, properties and environmental safety of fired bricks made from lake silt and sewage sludge
1东南大学材料科学与工程学院, 南京 211189; 2无锡国联环保能源集团有限公司, 无锡 214131; 3华电电力科学研究院, 杭州 310030
Jia Lutao13 Cui Qiang2 Mei Hao1 Zhang Yamei1 Zhang Peigen1 Sun Zhengming1
1School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
2Wuxi Guolian Environment and Energy Group Co., Ltd., Wuxi 214131, China
3Huadian Electric Power Research Institute, Hangzhou 310030, China
湖泊淤泥 污泥 烧结砖 重金属 二噁英
lake silt sewage sludge fired brick heavy metal dioxins
以湖泊淤泥为主要原材料、煤渣为瘠性料、生活污泥为成孔剂,在实验室采用真空挤压塑性成型技术制备并烧结得到烧结砖试样.当湖泊淤泥、煤渣和生活污泥的质量分数分别为85%,10%和5%时,可制备出干燥线性收缩为5.35%、吸水率为16.5%、抗压强度为20.5 MPa的烧结砖试样.按《环境空气和废气二噁英类的测定同位素稀释高分辨气相色谱-高分辨质谱法》(HJ 77.2—2008)的相关规定,采用高分辨气相色谱/高分辨质谱联用仪(HRGC/HRMS)对焙烧过程中产生的气体进行了分析.结果表明,焙烧过程中释放的二噁英毒性当量为0.176 ngTEQ/m3,远低于《生活垃圾焚烧污染控制标准》(GB 18485—2014)中规定的1 ngTEQ/m3排放标准.重金属浸出试验表明,所测重金属浸出浓度低于《危险废物鉴别标准浸出毒性鉴别》(GB 5085.3—2007)限值的5个数量级左右,焙烧过程对重金属进行了有效固化,使用过程中不会造成重金属污染.
A vacuum plastic extruder in laboratory was employed to make the brick samples with lake silt, cinder and sewage sludge as primary raw material, coarse aggregate and pore-forming agent. An optimal combination of the linear drying shrinkage(5.35%), water absorption(16.5%)and compressive strength(20.5 MPa)was achieved for fired bricks made from 85% lake silt, 10% cinder and 5% sewage sludge, respectively. Gases released during sintering process were analyzed by the combined technique of high resolution gas chromatography and high resolution mass spectrometry(HRGC/HRMS)according to the specification HJ 77.2—2008(ambient air and flue gas determination of polychlorinated dibenzo-p-dioxins(PCDDs)and polychorinated dibenzofurans(PCDFs)isotope dilution HRGC-HRMS)for testing the PCDDs/PCDFs in environment and waste gas by HRGC/HRMS. The results show that the toxic equivalent of PCDDs/PCDFs is 0.176 ngTEQ/m3, which is much less than 1 ngTEQ/m3, specified in GB 18485—2014(standard for pollution control on the municipal solid waste incineration). Heavy metal leaching tests show that heavy metals in bricks are lower than that specified in specification for leaching toxicity evaluation of dangerous wastes GB 5085.3—2007(identification standards for hazardous wastes—identification for extraction toxicity)for about 5 orders of magnitudes, demonstrating that heavy metals are effectively immobilized. Thus the environment would not be polluted by the use of the bricks.


[1] Zhou Qixing, Zhu Yinmei. Potential pollution and recommended critical levels of phosphorus in paddy soils of the southern Lake Tai area, China [J]. Geoderma, 2003, 115(1): 45-54. DOI:10.1016/s0016-7061(03)00074-0.
[2] Qin Boqiang, Xu Pengzhu, Wu Qinglong, et al. Environmental issues of lake Taihu, China [J]. Hydrobiologia, 2007, 581(1): 3-14. DOI:10.1007/s10750-006-0521-5.
[3] Liu Wei, Qiu Rongliang. Water eutrophication in China and the combating strategies [J]. Journal of Chemical Technology and Biotechnology, 2007, 82(9): 781-786. DOI:10.1002/jctb.1755.
[4] Qu Wenchuan, Dickman M, Wang Sumin. Multivariate analysis of heavy metal and nutrient concentrations in sediments of Taihu Lake, China[J]. Hydrobiologia, 2001, 450(1/2/3): 83-89.
[5] Shen Guoqing, Lu Yitong, Wang Meinong, et al. Status and fuzzy comprehensive assessment of combined heavy metal and organo-chlorine pesticide pollution in the Taihu Lake region of China [J]. Journal of Environmental Management, 2005, 76(4): 355-362. DOI:10.1016/j.jenvman.2005.02.011.
[6] 朱阳春,陈学民,付小勇,等.湖泊污染特征及其生物修复 [J].广东化工,2011,38(3):259-260.
  Zhu Yangchun, Chen Xuemin, Fu Xiaoyong, et al. Characteristic of lake pollution and phytoremediation [J]. Guangdong Chemical Industry, 2011, 38(3): 259-260.(in Chinese)
[7] Niu Hongyi, Deng Wenjing, Wu Qunhe, et al. Potential toxic risk of heavy metals from sediment of the Pearl River in South China [J]. Journal of Environmental Sciences, 2009, 21(8): 1053-1058. DOI:10.1016/s1001-0742(08)62381-5.
[8] Kelly J J, Favila E, Hundal L S, et al. Assessment of soil microbial communities in surface applied mixtures of Illinois River sediments and biosolids [J]. Applied Soil Ecology, 2007, 36(2): 176-183. DOI:10.1016/j.apsoil.2007.01.006.
[9] 程福周,雷学文,孟庆山,等.水泥及其外加剂固化淤泥的试验研究 [J].建筑科学,2014,30(9):51-55. DOI:10.13614/j.cnki.11-1962/tu.2014.09.011.
  Cheng Fuzhou, Lei Xuewen, Meng Qingshan, et al. Experimental study on cement and its additional agent to cure silt [J]. Building Science, 2014, 30(9): 51-55. DOI:10.13614/j.cnki.11-1962/tu.2014.09.011.(in Chinese)
[10] 潘嘉芬,冯雪冬.利用河道淤泥等固体废弃物制备水处理多孔陶粒滤料试验研究 [J].非金属矿,2010,33(6):68-71. DOI:10.3969/j.issn.1000-8098.2010.06.021.
  Pan Jiafen, Feng Xuedong. Experimental study on preparation of porous ceramics from river course sediments as main raw material for treatment of waste water [J]. Non-Metallic Mines, 2010, 33(6): 68-71. DOI:10.3969/j.issn.1000-8098.2010.06.021.(in Chinese)
[11] Torres P, Manjate R S, Fernandes H R, et al. Incorporation of river silt in ceramic tiles and bricks [J]. Industrial Ceramics, 2009, 29(1): 5-12.
[12] He Hongtao, Yue Qinyan, Su Yan, et al. Preparation and mechanism of the sintered bricks produced from Yellow River silt and red mud [J]. Journal of Hazardous Materials, 2012, 203-204(4): 53-61. DOI:10.1016/j.jhazmat.2011.11.095.
[13] Wu Jiangfeng, Leng Guanghui, Xu Xiaohong, et al. Preparation and properties of ceramic facing brick from East-lake sediment [J]. Journal of Wuhan University of Technology(Material Science Edition), 2012, 27(1): 154-159. DOI:10.1007/s11595-012-0427-1.
[14] Mezencevova A, Yeboah N N, Burns S E, et al. Utilization of Savannah Harbor river sediment as the primary raw material in production of fired brick [J]. Journal of Environmental Management, 2012, 113: 128-136. DOI:10.1016/j.jenvman.2012.08.030.
[15] Fytili D, Zabaniotou A. Utilization of sewage sludge in EU application of old and new methods: A review [J]. Renewable and Sustainable Energy Reviews, 2008, 12(1): 116-140. DOI:10.1016/j.rser.2006.05.014.
[16] Dean R B, Suess M J. The risk to health of chemicals in sewage sludge applied to land [J]. Waste Management & Research, 1985, 3(1): 251-278. DOI:10.1177/0734242x8500300131.
[17] Liew A G, Idris A, Samad A A, et al. Reusability of sewage sludge in clay bricks [J]. Journal of Material Cycles and Waste Management, 2004, 6(1): 41-47. DOI:10.1007/s10163-003-0105-7.
[18] 林子增,孙克勤.城市污泥为部分原料制备黏土烧结普通砖 [J].硅酸盐学报,2010,38(10):1963-1968.
  Lin Zizeng, Sun Keqin. Preparation of common clay brick by sewage sludge as the partial raw material [J]. Journal of the Chinese Ceramic Society, 2010, 38(10): 1963-1968.(in Chinese)
[19] 陈伟,钱觉时,刘军,等.污水污泥页岩烧结制品的重金属固化与水环境浸出稳定性 [J].硅酸盐学报,2012,40(10):1420-1426.
  Chen Wei, Qian Jueshi, Liu Jun, et al. Solidification and leaching stability of heavy metals in sintered products made of shale and sewage sludge [J]. Journal of the Chinese Ceramic Society, 2012, 40(10): 1420-1426.(in Chinese)
[20] 廖艳芬,漆雅庆,马晓茜.城市污水污泥焚烧处理环境影响分析 [J].环境科学学报,2009,29(11):2359-2365.
  Liao Yanfen, Qi Yaqing, Ma Xiaoqian. Environmental impact assessment of sewage sludge incineration treatments [J]. Acta Scientiae Circumstantiae, 2009, 29(11): 2359-2365.(in Chinese)
[21] Devant M, Cusidó J A, Soriano C. Custom formulation of red ceramics with clay, sewage sludge and forest waste [J]. Applied Clay Science, 2011, 53(4): 669-675. DOI:10.1016/j.clay.2011.06.002.
[22] Cultrone G, Sebastian E, de la Torre M J. Mineralogical and physical behaviour of solid bricks with additives [J]. Construction and Building Materials, 2005, 19(1): 39-48. DOI:10.1016/j.conbuildmat.2004.04.035.
[23] Bellanger M, Homand F, Remy J M. Water behaviour in limestones as a function of pore structure: Application to frost resistance of some lorraine limestones [J]. Engineering Geology, 1993, 36(1/2): 99-108. DOI:10.1016/0013-7952(93)90022-5.
[24] Elert K, Cultrone G, Navarro C R, et al. Durability of bricks used in the conservation of historic buildings: Influence of composition and microstructure [J]. Journal of Cultural Heritage, 2003, 4(2): 91-99. DOI:10.1016/s1296-2074(03)00020-7.
[25] Folgueras M B, Diaz R M, Xiberta J, et al. Thermogravimetric analysis of the co-combustion of coal and sewage sludge [J]. Fuel, 2003, 82(15): 2051-2055. DOI:10.1016/s0016-2361(03)00161-3.
[26] 李爱民,高宁博,李润东,等.NOxx和SO2在污泥气化焚烧处理中的排放特性 [J].燃烧科学与技术,2004,10(4):289-294.
  Li Aimin, Gao Ningbo, Li Rundong, et al. NOxx and SO2 emission characteristics of sewage sludge in gasified incineration treatment [J]. Journal of Combustion Science and Technology, 2004, 10(4): 289-294.(in Chinese)
[27] Eddings E G, Lighty J A S, Kozinski J A. Determination of metal behavior during the incineration of a contaminated montmorillonite clay [J]. Environmental Science & Technology, 1994, 28(11): 1791-1800. DOI:10.1021/es00060a007.
[28] Weng C H, Lin D F, Chiang P C. Utilization of sludge as brick materials [J]. Advances in Environmental Research, 2003, 7(3): 679-685. DOI:10.1016/s1093-0191(02)00037-0.


收稿日期: 2015-12-20.
作者简介: 贾鲁涛(1989—),男,硕士生;张亚梅(联系人),女,博士,教授,博士生导师,ymzhang@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51378115).
引用本文: 贾鲁涛,崔强,梅浩,等.湖泊淤泥与生活污泥复合烧结砖的制备、性能及环境安全性[J].东南大学学报(自然科学版),2016,46(6):1301-1307. DOI:10.3969/j.issn.1001-0505.2016.06.032.
更新日期/Last Update: 2016-11-20