污泥含碳有机官能团分布及其模型化合物构建

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Abstract

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.

Key words： sewage sludge carbon-containing functional groups model compound Py-GC/MS

Received: 24 January 2019

PACS:

X703.5

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	Articles by authors
	HU Yan-jun
	WANG Lin-jie
	LU Yan-jun
	YU Fan
	XIA Yuan-yuan

Cite this article:

HU Yan-jun,WANG Lin-jie,LU Yan-jun等. Characterization of carbon-containing organic functional groups in sludge and construction of its model compounds[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(9): 3872-3878.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I9/3872

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