環境工学研究論文集
Online ISSN : 1884-829X
Print ISSN : 1341-5115
ISSN-L : 1341-5115
硝化反応のBODに及ぼす影響の実験による評価検討
藤井 滋穂松澤 正貴永禮 英明清水 芳久
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2003 年 40 巻 p. 531-540

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Effects of nitrification on BOD were evaluated with two kinds of batch experiments, and the problems caused by N-BOD were discussed with descriptions of test manuals, experimental data and literature review. The main results drawn in this study are as follows:(1) most of water analysis manuals do not clearly describe nitrification on BOD test is an interference nor the matter to be measured, (2) ammonium nitrogen in dilution water causes a positive error in BOD test, and can overestimate N-BOD values more than two times, (3) BOD values measured with present methods can not express the pollution level because of N-BOD appearance during the purification development. As a conclusion, it is recommended that oxygen consumption by nitrification should be eliminated from the contents of BOD, and the test procedure should adapt an inhibition process for nitrification in BOD measurement.
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