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	Carbon isotopic fractionation during photolysis of hexachlorobenzene
	Zulin Zhang ; Gang Yu ; Jie Cheng ; Xu Wang ; Fusong Zhang ; Junliang Zhou
	2010-05-10 ; 2010-05-10
会议名称	PROGRESS IN NATURAL SCIENCE ; 12th Joint Conference of the Chinese-Society-of-Chemical-Sciences-and-Technologies/Chinese United Kingdom Section of the Society-of-Chemical-Industry ; Nottingham, ENGLAND ; Web of Science
关键词	hexachlorobenzene stable isotope fractionation photolysis isotopic ratio REDUCTIVE DECHLORINATION AROMATIC-HYDROCARBONS CHLORINATED ETHENES PERSISTENT ORGANOCHLORINES ANAEROBIC BIODEGRADATION MICROBIAL DECHLORINATION INTRINSIC BIOREMEDIATION TRICHLOROETHENE FIELD GROUNDWATER Multidisciplinary Sciences
中文摘要	The occurrence of carbon isotope fractionation during dechlorination of hexachlorobenzene (HCB) to pentachlorobenzene (penta-CB) has been evaluated under ultraviolet irradiation in a photo-reactor. Stable carbon isotope ratios (delta C-13) of HCB and penta-CB increases from - 27.3 parts per thousand to 18.8 parts per thousand and from - 33.9 parts per thousand to - 19.5 parts per thousand, respectively. The isotopic fractionation of the reactants and products are described with the Rayleigh model, and the following enrichment factors (epsilon) are obtained: - 14.8 parts per thousand for the dechlorination of HCB and 22.7 parts per thousand for the dechlorination product (penta-CB). With the initial delta C-13 value of HCB, this enrichment factor can be used to estimate the fraction (f) of HCB remaining by Rayleigh equation. Strong enrichment of delta C-13 in HCB and penta-CB during photochemical dechlorination might serve as a powerful toot to monitor the photolysis process, such information may provide additional evidence to aid in further understanding the biogeochemical processes of these compounds undergoing in the environment.; Univ Nottingham
会议录出版者	TAYLOR & FRANCIS LTD ; ABINGDON ; 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18927]
专题	清华大学
推荐引用方式 GB/T 7714	Zulin Zhang,Gang Yu,Jie Cheng,et al. Carbon isotopic fractionation during photolysis of hexachlorobenzene[C]. 见:PROGRESS IN NATURAL SCIENCE, 12th Joint Conference of the Chinese-Society-of-Chemical-Sciences-and-Technologies/Chinese United Kingdom Section of the Society-of-Chemical-Industry, Nottingham, ENGLAND, Web of Science.

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