| 牛粪COD负荷、产污系数及原始产污总量的测算 |
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| 引用本文： | 张蓓,李汉平,张春光.牛粪COD负荷、产污系数及原始产污总量的测算[J].西南农业学报,2011,24(4). |
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| 作者姓名： | 张蓓 李汉平 张春光 |
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| 作者单位： | 北京工商大学食品学院环境科学与工程系,北京,100048 |
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| 摘 要： | 为得到牛粪COD产污系数及原始产污总量,先采用非水样品COD负荷测定方法,对单位绝干牛粪COD负荷值进行了实验测定:牛粪(含溶解态和非溶解态的全成分样)的COD负荷实测值为1.337 kg·kg-1(绝干牛粪).由排粪系数得到牛粪的COD产污系数典型值为5.35kg·d-1·头-1.根据养牛数,计算得到我国2008年牛粪的COD原始产污总量高达2.06亿t,相当于当年全国工业和生活COD排放总量的15.6倍.需要对牛粪的GOD原始产污总量与可能形成的水环境面源贡献压力及其防范予以充分重视.
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| 关 键 词： | 牛粪 COD 负荷测定 产污系数 原始产污总量 面源 压力 |
Determining COD Load of Cattle Dung and Calculating COD Formation Coefficient and Total COD Amount Engendered from Cattle Dung in China |
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| ZHANG Bei,LI Han-ping,ZHANG Chun-guang.Determining COD Load of Cattle Dung and Calculating COD Formation Coefficient and Total COD Amount Engendered from Cattle Dung in China[J].Southwest China Journal of Agricultural Sciences,2011,24(4). |
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| Authors: | ZHANG Bei LI Han-ping ZHANG Chun-guang |
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| Institution: | ZHANG Bei,LI Han-ping,ZHANG Chun-guang(Department of Environmental Science and Engineering,School of Food and Chemical Engineering,Beijing Technology and Business University,Beijing 100048,China) |
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| Abstract: | Based on the established COD(Chemical Oxygen Demand) determination method to non-aqueous samples such as crop straws,several COD load experiments on cattle dung were carried out,in which the samples of cattle dung were firstly dissolved in the solution of 75 % sulphuric acid before using the COD determination method to waste water samples.The results showed that the determination method of COD load on cattle dung was feasible in practice,and were both exact and reliable.According to the experiment,the avera... |
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| Keywords: | Cattle dung COD Determination of load Formation coefficient Formation amount Non-point source Contribution |
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