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水流条件巨大变化对有机污染物降解速率影响研究
引用本文:李锦秀,廖文根.水流条件巨大变化对有机污染物降解速率影响研究[J].环境科学研究,2002,15(3):45-48.
作者姓名:李锦秀  廖文根
作者单位:中国水利水电科学研究院,水环境研究所,北京,100038
基金项目:国务院三峡工程建设委员会办公室资助项目
摘    要:以三峡库区江段主要有机污染水质指标BOD5为例,通过经验分析与计算,深入研究三峡水库建成前后水流条件巨大变化对BOD5生化降解系数K1的影响,并建立了与水流条件相关的经验关系式,研究表明,三峡水库建成以后,随着水位抬高,流速减缓,单位时间内BOD5降解速率K1将明显减小。

关 键 词:降解速率  水流  有机污染物  生化降解速率  三峡库区  长江
文章编号:1001-6929(2002)03-0046-04
收稿时间:2001/8/8 0:00:00

The Effect of Water Flow on the Biodegradation of Organic Pollutant
LI Jin-xiu and LIAO Wen-gen.The Effect of Water Flow on the Biodegradation of Organic Pollutant[J].Research of Environmental Sciences,2002,15(3):45-48.
Authors:LI Jin-xiu and LIAO Wen-gen
Institution:Institute of Water Environment, Chinese Research Academy of Water Resources and Hydropower, Beijing 100038, China;Institute of Water Environment, Chinese Research Academy of Water Resources and Hydropower, Beijing 100038, China
Abstract:With the main pollutant BOD 5 as an example and based on empirical analysis and calculation,the effect of great variation of water flow on the biodegradation rate of BOD\-5( K \-1)before and after the building of the Three\|Gorges Reservoir was studied.An empirical equation of K\-1 related with water velocity and depth was also developed.The results showed that after the building of the Three\|Gorges Reservoir,the biodegradation rate of BOD 5 would obviously decrease with the increase of water level and decrease of water velocity.
Keywords:water flow  organic pollutant  biodegradation rate
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