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首页> 外文会议>Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research >OXYGEN CONSUMPTION PROCESSES DUE TO RESUSPENSION OF SEDIMENT IN ARIAKE SEA
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OXYGEN CONSUMPTION PROCESSES DUE TO RESUSPENSION OF SEDIMENT IN ARIAKE SEA

机译：由于Ariake海中沉积物重新悬浮而导致的氧气消耗过程

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The oxygen consumption processes due to suspended sediment (SS), which play important role in the formation of hypoxic water mass, have been investigated experimentally by using the bed materials sampled off Takesaki in the Ariake Sea, Japan. The oxygen consumption due to SS is usually attributed to both biological respiration and chemical oxidation. In the measurements of the total oxygen consumption (TOC), the sampled bed materials were added in the aerated water column and were stirred to curl them up uniformly. On the other hand, the solution of HgCl2 was added in the measurements of chemical oxygen consumption (COC) to suppress the biological respiration. The biological oxygen consumption (BOC) was calculated from the difference between TOC and COC. With time, COC increases exponentially and approaches gradually a constant value.However, BOC continues to increase monotonically with time. In the initial stage, COC is more predominant than BOC. The dimensionless expressions for TOC, COC and BOC are derived on the mathematical considerations and express well the three types of oxygen consumptions due to SS.
机译：氧消耗过程由于悬浮沉积物（SS），从而起到在缺氧水团的形成起重要作用，已经通过使用在明海，日本采样关闭竹崎床材料实验研究。耗氧由于SS通常被认为是既生物呼吸和化学氧化。在总耗氧量（TOC）的测量，在充气水柱中加入采样床材料和搅拌以均匀地卷曲起来。在另一方面，在化学耗氧量（COC）的测量溶液中加入氯化汞溶液中来抑制生物呼吸作用。生物耗氧量（BOC）从TOC和COC之间的差计算。随着时间的推移，COC成倍增加，并逐渐接近恒定value.However，中行继续随时间单调增加。在初始阶段，COC比BOC更占优势。对于TOC，COC和中行的无量纲表达式得出的数学方面的考虑，并表示还有由于SS三种耗氧量的。

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