十溴联苯醚环境修复技术的研究进展.pdf

保
2014年第34卷第3期
ENVIRONMENTAL PROTECTION OF CHEMICAL INDUSTRY
十溴联苯瞇环境修复技术的研究进展
才满2,李艳玲,杜克久2
(1.河北农业大学林学院,河北保定071000:2.河北农业大学河北省林木种子资源与森林保护重点实验室,河北保定071000
[摘要]介绍了溴代阻燃剂十溴联苯醚(BDE-209)环境修复技术的研究进展。从光降解、零价铁降解、生物降解3个方面对
BDE-209的降解机理和降解后的产物进行了介绍。BDE-209经光照、厌氧微生物、零价铁的脱溴作用后,降解成低溴代联
苯醚产物;好氧微生物利用低溴代联苯醚作为生长碳源,将其在酶的作用下开环降解,进入三羧酸循环或彻底分解成CO2和
H2O。提出应采用多种方法协同作用,更有地降解多溴联萃醚化合物
关键词」十溴联苯醚;光解;零价铁降解;生物降解;低溴代联苯醚;三羧酸循环
「中图分类号]X50
文献标志码]A[文章编号]1006-1878(2014)03-0219-05
Research Progresses in Environmental Remediation Technologies for
Decabromodiphenyl Ether(Bde-209)Removal
Cai Mc
g
Du k
(1. School of Forestry, Agriculture University of Hebei, Baoding Hebei 071000, China; 2. Hebei Provincial Key Laboratories for
Germplasm Resources of Forest Trees and Forest Protection, Agriculture University of Hebei, Baoding Hcbei 071000, China)
Abstract: The research progresses in environmental remediation technologies for brominated flame
retardant decabromodiphenyl ether(bde-209 )removal are reviewed. The degradation mechanism and
degradation products of BDE-209 are introduced in the aspects of photo-degradation, zero-valent iron
degradation and biodegradation. After debrominated by light, anaerobic microbes and zero-valent iron
BDE-209 is degraded into low brominated diphenyl ether, which is used by aerobic microbes as carbon
source and degraded by enzymes with ring breakage, the products are intermediates in tricarboxylic acid
cycle or CO2 and H2O. It is pointed that multiple methods should be used together to degrade polybrominated
diphenyl ethers more effectively
Key words: decabromodiphenyl ether; photolysis; zero-valent iron degradation; biodegradation; low
brominated diphenyl ether; tricarboxylic acid cycle
随着现代工业的发展,添加型阻燃剂多溴联子垃圾回收厂室外灰尘试样中BDE-209的含量达到
苯醚( PBDES)的污染状况越来越严重。十溴联苯18996.8ng/gS,一些焚烧点土壤中BDE-209的含
醚(BDE-209)是溴代阻燃剂同系物中溴含量最高
的化合物,具有高亲脂性、低水溶性、难挥发性[收稿日期]2013-11-06:【修订日期]2014-01-(06
等特点?。因其价格低廉、阻燃性能优越、且在[作者简介』才满(1985),女,吉林省吉林市人,博上生
所有溴代阻燃剂同系物中急性毒性最低[3-],被
研究方向为环境的植物修复。电话15028290779,电邮
广泛用于纺织品和电子产品等领域的。据统计
cal man0603@163.c0m。联系人:杜克久,电话13833072220,电
邮dukei@126.com。
BDE-209阻燃剂用量约占国际溴代阻燃剂市场总、[基金项目』“十二五”农村领域国家科技计划课题
量的80%7。在大气、土壤、沉积物以及人、动
(2012AA101403);环境化学与生态毒理学国家重点实验室开放
物等生物试样中均可检出BDE-209,其中,部分电基金课题(KF2003)。