Factors affecting the relationship between the NBOD values and the amounts of nitrogenous pollutants: A field study on the lee river
Factors affecting the relationship between the NBOD values and the amounts of nitrogenous pollutants: A field study on the lee river
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影响NBOD值与氮污染物含量关系的因素——以利河为例
DOI：
10.1016/0043-1354(91)90086-6
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发表时间：
1991
期刊：
影响因子：
12.8
通讯作者：
Sun Yicheng
中科院分区：
文献类型：
--
作者：
J. Deai;Tang Yida;Yuyang Gong;Zhang Jian;Sun Yicheng
利河中的含氮生物需氧量（NBOD）和可氧化的含氮污染物之间的关系已被确定为依赖于水文条件。在上库无泄水（NWD）条件下，这种关系是明确的，但在有泄水（WD）条件下，这种关系是不明确的。NBOD5与BOD5的平均比值为0.620（NWD）和0.379（WD），最大比值分别为0.944和0.643。这两种情况之间的差异主要是由几个因素的变化引起的，如可氧化氮化合物的浓度，硝化生物的丰度，pH值和水的流速和深度。水文条件在这些变化中起着重要的作用。
The relationship between the nitrogenous biological oxygen demand (NBOD) and the oxidizable nitrogenous pollutants in the Lee River has been determined to be dependent upon the hydrological conditions. When there is no water discharge (NWD) from the upper reservoir, this relationship is quite clear and definite, but under water discharge (WD) conditions, this relationship is ill-defined. Mean ratios of NBOD5to BOD5are 0.620 for the NWD case and 0.379 for the WD case, with maximum ratios of 0.944 and 0.643, respectively. Differences between these two cases are caused mainly by the variations of several factors such as concentration of oxidizable nitrogen compounds, an abundance of nitrifying organisms, pH and velocity and depth of water. The hydrological conditions play an important role in these variations.