有机固废和煤掺烧对重金属及颗粒物生成的影响研究Effect of organic solid waste and coal mixed firing on the formation of heavy metals and particulate matter
吴有兵,杨阳,梁祖雄,巩鹏,王璟,王正江,张江涛,李小军,李亚娟,伊锦昊,刘虎
摘要(Abstract):
有机固体废弃物(OSW)中含有多种重金属,燃烧过程会随烟气排放,造成一定的环境危害,因此对OSW和褐煤掺混燃烧过程灰分中的重金属迁移和颗粒物生成特性进行了实验研究。结果表明:燃料在燃烧过程中各种重金属的释放不单取决于燃料本身的质量浓度,而且和高温作用下的化学机制密切相关;混合燃料烟气中产生Pb、Cd、As元素的含量明显低于典型燃料和校核燃料单独燃烧时烟气中产生的重金属元素含量;而Cu、Zn、Co、Mn在飞灰中均有较高质量分数;800、850℃下选用的4种燃料制得的灰分的粒径分布均大致呈现单峰正态分布;当温度升高到900℃后,除产生小粒径灰分外,还可能会产生较大粒径的灰分颗粒。
关键词(KeyWords): 有机固废;掺烧;重金属;灰分粒径;煤
基金项目(Foundation): 中国华能集团有限公司总部科技项目(HNKJ21-H44);; 陕西省自然科学基金项目(2020JQ-063)~~
作者(Author): 吴有兵,杨阳,梁祖雄,巩鹏,王璟,王正江,张江涛,李小军,李亚娟,伊锦昊,刘虎
DOI: 10.19666/j.rlfd.202307122
参考文献(References):
- [1] GUO H N, WU S B, TIAN Y J, et al. Application of machine learning methods for the prediction of organic solid waste treatment and recycling processes:A review[J]. Bioresource Technology, 2021, 319:124114.
- [2]宋国英,朱静波.国外城市固体废弃物处理技术的进展[J].环境科学与管理, 1993(2):5.SONG Guoying, ZHU Jingbo. Progress of municipal solid waste treatment technology in foreign countries[J].Environmental Science and Management, 1993(2):5.
- [3] LECKNER B, LIND F. Combustion of municipal solid waste in fluidized bed or on grate-A comparison[J]. Waste Management, 2020,109(Part A):94-108.
- [4] DASKALOPOULOS E, BADR O, PROBERT S D.Economic and environmental evaluations of waste treatment and disposal technologies for municipal solid waste[J]. Applied Energy, 1997, 58(4):209-255.
- [5] SUKSANKRAISORN K, PATUMSAWAD S,VALLIKUL P, et al. Co-combustion of municipal solid waste and Thai lignite in a fluidized bed[J]. Energy Conversion and Management, 2004, 45(6):947-962.
- [6] LIU H, WANG Y, ZHAO S, et al. Review on the current status of the co-combustion technology of organic solid waste(osw)and coal in china[J]. Energy&Fuels, 2020,34(12):15448-15487.
- [7]刘贺,刘建忠,陈建,等.几种典型固废与神华煤掺烧的结渣特性[J].化工进展, 2022, 41(1):10.LIU He, LIU Jianzhong, CHEN Jian, et al. Slag formation characteristics of several typical solid wastes mixed with Shenhua coal[J]. Progress in Chemical Industry, 2022,41(1):10.
- [8]唐诗.准东煤中钠的迁移及配煤灰熔融特性的研究[D].武汉:华中科技大学, 2017:1.TANG Shi. Study on the transfer of sodium in Jundong coal and melting characteristics of blended coal ash[D].Wuhan:Huazhong University of Science and Technology,2017:1.
- [9]王东旭,祁超,王洋,等. CaO含量对高钠煤灰熔融特性的影响[J].燃料化学学报, 2017, 45(9):10.WANG Dongxu, QI Chao, WANG Yang, et al. Effect of CaO content on melting characteristics of high sodium coal ash[J]. Journal of Fuel Chemistry and Technology,2017, 45(9):10.
- [10]毛军,徐明厚,李帆.碱性矿物质对煤灰熔融特性影响的研究[J].华中科技大学学报(自然科学版), 2003,31(4):4.MAO Jun, XU Minghou, LI Fan. Study on effect of alkaline minerals on melting characteristics of coal ash[J].Journal of Huazhong University of Science and Technology(Natural Science Edition), 2003, 31(4):4.
- [11]宁坚,徐顺塔,靳虎,等.高氯煤燃烧过程中氯的释放及迁移特性[J].燃烧科学与技术, 2020, 26(4):8.NING Jian, XU Shunta, JIN Hu, et al. Release and migration characteristics of chlorine during high chlorine coal combustion[J]. Combustion Science and Technology,2019, 26(4):8.
- [12] VINCENT, R., GRAY. Prediction of ash fusion temperature from ash composition for some New Zealand coals[J]. Fuel, 1987, 66(9):1230-1239.
- [13] WANG Q, ZHANG L, SATO A, et al. Mineral interactions and their impacts on the reduction of PM10 emissions during co-combustion of coal with sewage sludge[J].Proceedings of the Combustion Institute, 2009, 32(2):2701-2708.
- [14] ZHANG L, NINOMIYA Y. Transformation of phosphorus during combustion of coal and sewage sludge and its contributions to PM10[J]. Proceedings of the Combustion Institute, 2007, 31(2):2847-2854.
- [15] WOLSKI N, MAIER J, HEIN K R G. Fine particle formation from co-combustion of sewage sludge and bituminous coal[J]. Fuel Processing Technology, 2004,85(6/7):673-686.
- [16] NINOMIYA Y, ZHANG L, SAKANO T, et al.Transformation of mineral and emission of particulate matters during co-combustion of coal with sewage sludge[J]. Fuel, 2004, 83(6):751-764.
- [17] YAO J, LI W B, KONG Q N, et al. Content, mobility and transfer behavior of heavy metals in MSWI bottom ash in Zhejiang Province, China[J]. Fuel, 2010, 89(3):616-622.
- [18] XU Q, XIANG J, KO J H. Municipal plastic recycling at two areas in China and heavy metal leachability of plastic in municipal solid waste[J]. Environmental Pollution,2020, 260:114074.
- [19]褚莲清,徐长法,杨卫英,等.垃圾固形燃料(RDF)技术及其应用[J].环境卫生工程, 2001(2):79-81.CHU Lianqing, XU Changfa, YANG Weiying, et al.Refuse solid fuel(RDF)technology and its application[J].Environmental Health Engineering, 2001(2):79-81.
- [20] ABRAMOV S, HE J, WIMMER D, et al. Heavy metal mobility and valuable contents of processed municipal solid waste incineration residues from southwestern germany[J]. Waste Management, 2018, 79:735-743.
- [21] S?RUM L, FRANDSEN F J, HUSTAD J E. On the fate of heavy metals in municipal solid waste combustion.Part II. from furnace to filter[J]. Fuel, 2004, 83(11/12):1703-1710.
- [22] VOGG H, BRAUN H, METZGER M, et al. The specific role of cadmium and mercury in municipal solid waste incineration[J]. Waste Management&Research, 1986,4(1):65-73.
- [23] MILLER B B, KANDIYOTI R, DUGWELL D R. Trace element emissions from co-combustion of secondary fuels with coal:a comparison of bench-scale experimental data with predictions of a thermodynamic equilibrium model[J]. Energy&Fuels, 2002, 16(4):956-963.