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首頁(yè)> 美國(guó)衛(wèi)生研究院文獻(xiàn)>The Journal of Automatic Chemistry >Comparison Study of Different BOD Tests in the Determinationof BOD7 Evaluated in a Model Domestic Sewage
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Comparison Study of Different BOD Tests in the Determinationof BOD7 Evaluated in a Model Domestic Sewage

機(jī)譯：測(cè)定中不同BOD測(cè)試的比較研究污水樣板中BOD7的評(píng)估

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The aim of this research was to study the suitability of a manometric respirometric test (OECD 301F) for the determination of biological oxygen demand (BOD) in domestic wastewater. This was done by comparing four different BOD tests (a manometric respirometric test, oxygen sensor determination, iodometric titration, and UV absorption measurement) and by evaluating the BOD7 value after a short-term measurement applying the manometric respirometric test. Measurements were done in three different laboratories. The respirometric test was performed well on municipal sewage, and the precision of results was good. There were minor deviations between BOD7 values as determined by the different methods, but the deviations were not essentially big enough to have a practical impact. Evaluation of the BOD7 value after two or three days' incubation by the respirometric method was shown to work well; average deviations between measured and evaluated values after three days' incubation were 5–18%. Hence, the manometric respirometric test proved to be a rapid and suitable tool for process control purposes.
機(jī)譯：這項(xiàng)研究的目的是研究測(cè)壓呼吸試驗(yàn)（OECD 301F）對(duì)確定生活污水中生物需氧量（BOD）的適用性。通過(guò)比較四個(gè)不同的BOD測(cè)試（測(cè)壓呼吸測(cè)試，氧傳感器測(cè)定，碘滴定和紫外線吸收測(cè)量），并在應(yīng)用測(cè)壓呼吸測(cè)試進(jìn)行短期測(cè)量后評(píng)估BOD7值，從而完成此操作。在三個(gè)不同的實(shí)驗(yàn)室中進(jìn)行了測(cè)量。對(duì)該市污水進(jìn)行了呼吸測(cè)試，結(jié)果精度良好。通過(guò)不同方法確定的BOD7值之間存在較小的偏差，但該偏差本質(zhì)上不足以產(chǎn)生實(shí)際影響。呼吸測(cè)定法孵育2天或3天后，對(duì)BOD7值的評(píng)估顯示出良好的效果。孵育三天后，測(cè)量值與評(píng)估值之間的平均偏差為5–18％。因此，測(cè)壓呼吸測(cè)試被證明是用于過(guò)程控制目的的快速且合適的工具。

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