Emission characteristics for co-combustion of leather wastes, sewage sludge, and coal in a laboratory-scale entrained flow tube furnace

被引：0
作者：
Mingxiu Zhan
Chen Sun
Tong Chen
Xiaodong Li
机构：
[1] China Jiliang University,College of Metrology and Measurement Engineering
[2] Zhejiang University,State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering
来源：
Environmental Science and Pollution Research | 2019年 / 26卷
关键词：
Co-combustion; Heavy metals; PCDD/Fs; Sewage sludge; Leather waste; Coal;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Four different mixed fuels consisted of leather waste, coal, and sewage sludge were combusted in a lab-scale entrained flow fluidized bed furnace. The influence of blending ratio on emission characteristics of SO2, NOx, HCl, particulate matter (PM), heavy metals, and polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) was studied. Results showed that the mixing of coal with sewage sludge had a complex effect on the emission characteristics. On the one hand, with more sewage sludge blending in the mixed fuel, the acid gas pollutant (SO2, NOx) decreased a lot, and the recovery of volatile heavy metals (Cd, Pb) increased at the same time. Furthermore, the leaching toxicity of Cr in the fly ash and bottom ash went down below the national standard with the adding of sewage sludge. On the other hand, the mixing of sewage sludge which consisted of more ash content resulted in the increase of the PM emission. Moreover, the high content of Cu and chlorine in the sewage sludge can promote the formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) when the fuel 3 and 4 were combusted. Most importantly, the concentration of toxic PCDD/Fs in the flue gas produced from fuel 3 and fuel 4 was successfully controlled down below 0.20 ng I-TEQ/Nm3 by the active carbon.
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页码：9707 / 9716
页数：9
相关论文
共 156 条
  • [1] Adami C(1997)Co-combustion of sewage sludge in a lignite-fired industrial power station Chem Ing Tech 69 973-976
  • [2] Tschernjaew J(2013)Biodiesel production from leather industry wastes as an alternative feedstock and its use in diesel engines Energy Explor Exploit 31 759-770
  • [3] Kummel R(2004)Metal emissions from co-combustion of sewage sludge and coal/wood in fluidized bed Fuel 83 1803-1821
  • [4] Altun S(2005)NOx and N2O emissions during fluidized bed combustion of leather wastes J Energy Resour Technol 128 99-103
  • [5] Yasşar F(2007)Characterization of PCDD/Fs and heavy metals from MSW incineration plant in Harbin Waste Manag 27 1860-1869
  • [6] Amand LE(2007)Co-combustion: a summary of technology Therm Sci 11 5-40
  • [7] Leckner B(1996)Production and potential uses of co-products from solid tannery waste J Am Leather Chem Assoc 91 270-276
  • [8] Bahillo A(1998)Processing of leather waste: pilot scale studies on chrome shavings. Isolation of potentially valuable protein products and chromium Waste Manag 18 211-218
  • [9] Armesto L(2018)Formation pathways of PCDD/Fs during the co-combustion of municipal solid waste and coal Chemosphere 208 862-870
  • [10] Cabanillas A(2002)De novo synthesis of PCDD/F by thermogravimetry Environ Sci Technol 36 263-269
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