Carbon contained in the organic structure of sludge is an active element with strong chemical activity. Its thermochemical reaction occurs easily during energy conversion, which has a significant impact on the chemical characteristics and formation of the resulting products from sludge energy conversion. Firstly, the distribution of carbon-containing functional groups on the surface of sludge were analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The main carbon containing functional groups in sludge include Enyl (C-C), benzene ring (pi-pi*), ether (C-O-C), carboxyl (-COOH). Based on the obtained results regarding organic carbon and the composition of common organic compounds in sludge, a few typical carbon functional group model compounds of sludge were then constructed:M-xylene (pi-pi*), tetrahydrofuran (C-O-C), acetic acid (-COOH) and cyclopentene (C=C). Finally, pyrolysis apparatus and gas chromatography/mass spectrometry (Py-GC/MS) was combined to compare the pyrolysis characteristics of sludge and carbon-containing model compounds at different temperatures. It was proved that the constructed carbon-containing model compounds were basically reasonable and reliable.
胡艳军, 王琳洁, 卢艳军, 余帆, 夏园园. 污泥含碳有机官能团分布及其模型化合物构建[J]. 中国环境科学, 2019, 39(9): 3872-3878.
HU Yan-jun, WANG Lin-jie, LU Yan-jun, YU Fan, XIA Yuan-yuan. Characterization of carbon-containing organic functional groups in sludge and construction of its model compounds. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(9): 3872-3878.
Syed-HASSAN S S A, Wang Y, Hu S, et al. Thermochemical processing of sewage sludge to energy and fuel:Fundamentals, challenges and considerations[J]. Renew. Sust. Energ. Rev, 2017,80:888-913.
[2]
Chan W P, Wang J Y. Characterization of sludge for pyrolysis conversion process based on biomass composition analysis and simulation of pyrolytic properties[J]. Waste Manag, 2018,72:274-286.
[3]
Gasco G, Mendez A, Gasco J M. Preparation of carbon-based adsorbents from sewage sludge pyrolysis to remove metals from water[J]. Desalination, 2005,180(1):245-251.
[4]
Breulmann M, Afferden M V, Muller R A, et al. Process conditions of pyrolysis and hydrothermal carbonization affect the potential of sewage sludge for soil carbon sequestration and amelioration[J], Journal of Analytical and Applied Pyrolysis, 2017, 124:256-265.
[5]
张曌.污泥热解工艺机理与碳排放研究[D]. 哈尔滨:哈尔滨工业大学, 2011. Zhang Z. Study on Process Mechanism and Carbon Emission of Sludge Pyrolysis[D]. Harbin:Harbin Institute of Technology, 2011.
[6]
李培生,胡益,胡念苏,等.污泥和煤混烧过程中含氧官能团的变化规律[J]. 中国电机工程学报, 2009,129(8):40-44. Li P S, Hu Y, Hu N S, et al. Changes of oxygen-containing functional groups during sludge and coal co-firing[J]. Proceedings of the CSEE, 2009,129(8):40-44.
[7]
胡益,李培生,余亮英.污泥与煤混烧中含碳官能团的演化过程[J]. 武汉大学学报(工学版), 2013,46(5):549-653. Hu Y, Li P S, Yu L Y. Evolution process of carbon-containing functional groups in sludge-coal mixed combustion[J]. Engineering Journal of Wuhan University, 2013,46(5):549-653.
[8]
Zhang J, Yu T N, Cui Y N, et al. Key intermediates in nitrogen transformation during microwave pyrolysis of sewage sludge:A protein model compound study[J]. Bioresource Technology, 2013, 132:57-63.
[9]
Tsai W T, Lee M K, Chang J H, et al. Characterization of bio-oil from induction-heating pyrolysis of food-processing sewage sludges using chromatographic analysis[J]. Bioresource Technology, 2009,100(9):2650-2654.
[10]
Parnaudeau V, Dignac M F. The organic matter composition of various wastewater sludges and their neutral detergent fractions as revealed by pyrolysis-GC/MS[J]. Journal of Analytical and Applied Pyrolysis, 2007,78(1):140-152.
[11]
Zhang B P, Xiong S J, Xiao B, et al. Mechanism of wet sewage sludge pyrolysis in a tubular furnace[J]. International Jouranal of hydrogen energy, 2011,36(1):355-363.
[12]
GBT212-2008煤的工业分析方法[S]. GBT212-2008 Industrial analysis of coal[S].
[13]
Grube M, Lin J G, Lee P H, et al. Evaluation of sewage sludge-based compost by FT-IR spectroscopy[J]. Geoderma, 2006,130(3/4):324-333.
[14]
Zhang B P, Xiong S J, Xiao B, et al. Production of bio-fuels by high temperature pyrolysis of sewage sludge using conventional and microwave heating[J]. Bioresource Technology, 2006,97:1185-1193.
[15]
Liu X Q, Ding H S, Wang Y Y, et al. Pyrolytic temperature dependent and ash catalyzed formation of sludge char with ultra-high adsorption to 1-Naphthol[J]. Environmental Science & Technology, 2016,50(5):2602-2609.
[16]
Xu L, Jiang Y, Qiu R. Parametric study and global sensitivity analysis for co-pyrolysis of rape straw and waste tire via variance-based decomposition[J]. Bioresource Technology, 2017,247:545-552.
[17]
Wei Q, Zhang F, Li J, et al. Oxidant-induced dopamine polymerization for multifunctional coatings[J]. Polym. Chem, 2010,1:1430-1433.
[18]
Finsgar M, Fassbender S, Hirth S, et al. Electrochemical and XPS study of polyethyleneimines of different molecular sizes as corrosion inhibitors for AISI 430 stainless steel in near-neutral chloride media[J]. Mater. Chem. Phys. 2009,116:198-206.
[19]
Yan Z L, Yang H M, Ouyang J, et al. In situ loading of highly-dispersed CuO nanoparticles on hydroxyl-group-rich SiO2-AlOOH composite nanosheets for CO catalytic oxidation[J]. Chem. Eng. J. 2017,316:1035-1046.
[20]
Gao C, Yu X Y, Xu R X, et al. AlOOH-Reduced graphene oxide nanocomposites:one-pot hydrothermal synthesis and their enhanced electrochemical activity for heavy metal ions[J]. ACS Appl. Mater. Interfaces, 2012,4:4672-4682.
