Biochemical oxygen demand Biochemical Oxygen Demand (BOD) is a chemical procedure for determining how fast biological organisms use up oxygen in a body of
Biochemical oxygen demand (BOD) is a measure of how much organic pollution is inwater. The BOD test measures the amount of dissolved oxygen in water that is used up due to the breakdown of organic pollutants, such as sewage, in a certain number ofdays. Raw sewage has a BOD of forty ...
Medical Definition biochemical oxygen demand noun biochemical oxygen de·mand -di-ˌmand : the oxygen used in meeting the metabolic needs of aerobic microorganisms in water rich in organic matter (as water polluted with sewage) called also biological oxygen demand, oxygen demand ...
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美 英 un.生化需氧量;生化耗氧量;生物化学需氧量 英汉 英英 un. 1. 生化需氧量 2. 生化耗氧量 3. 生物化学需氧量
biochemical oxygen demand [undefined]释义 常用 牛津词典 释义 生化需氧量;双语例句 全部 1. The other curve shown in Fig 1.5 corresponds to the biochemical oxygen demand ( BOD ). 图1-5的另一曲线相当于生化需氧量 ( BOD ) 曲线. 来自辞典例句 2. Biochemical oxygen demand ( BOD ) is one of ...
生化需氧量是测量水中有机微生物分解有机废料所消耗氧气的量(单位:毫克),在生态学以及环境科学上它可用来监控及评估水质的好坏。BOD的数值也可当作水源水质的参考指标,但它并不是很精确的定量方法。BOD值也常…
BOD(BiochemicalOxygen Demand的简写):生化需氧量或生化耗氧量(一般指五日生化学需氧量),表示水中有机物等需氧污染物质含量的一个综合指示。说明水中有机物由于微生物的生化作用进行氧化分解,使之无机化或气体化时所消耗水中溶解氧的总数量。解氧瓶中,在20℃的暗处培养5d,分别测定培养前后水样中溶解氧的质量浓度...
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