Generation of hydrogen sulfide in the deepest part of a reservoir under anoxic water conditions
Generation of hydrogen sulfide in the deepest part of a reservoir under anoxic water conditions
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缺氧水条件下水库最深处硫化氢的生成
DOI：
10.1007/s10333-013-0412-0
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发表时间：
2015
影响因子：
2.2
通讯作者：
Masayoshi Harada and Kazuaki Hiramatsu
中科院分区：
文献类型：
--
作者：
Do Thuy Nguyen;Yuichiro Yoshimura;Masayoshi Harada and Kazuaki Hiramatsu
储层中硫化氢的生成具有有机质大量涌入、明显的热分层以及夏季特别是在浅水层的极端缺氧状态的特征。据报道，在热分层水体的这一深层中，溶解氧耗尽，氧化还原电位福尔斯急剧下降到零值以下，长时间的无氧期和负氧化还原电位可能会增强有毒硫化氢的产生。本研究的主要目的是模拟不同浓度的硫化氢在水库的最深处的水质参数的基础上，密集的监测。应用一维水力生态系统模型，对溶解氧（DO）的垂向分布进行了连续时间模拟。在模拟溶解氧的基础上，确定了最深层连续无氧状态的长度，并利用多项式回归模型估算了氧化还原电位（ORP）的时间变化。最后，根据实测的氧化还原电位拟合了硫化氢的线性回归模型，并在此基础上，利用模拟的氧化还原电位对硫化氢浓度的时间变化进行了模拟。几个计算的引入给出了良好的模拟结果的硫化氢浓度，这种方法可以被认为是有用的预测和解释的目的，在进一步的研究调查有毒的硫化氢在水库的浅水层。
The generation of hydrogen sulfide in a reservoir can be characterized by a massive influx of organic matter, manifest thermal stratification, and an extreme anoxic state specifically at the hypolimnion layer in summer. It has been reported that in this deep layer of a thermally stratified water body, where dissolved oxygen is depleted and redox potential falls sharply below the value of zero, the prolonged oxygen-free period and negative redox potential may potentiate the production of toxic hydrogen sulfide. The main aim of this study was to simulate the varying concentration of hydrogen sulfide at the deepest part of the reservoir based on intensive monitoring of water quality parameters. A one-dimensional hydraulic ecosystem model was applied to simulate vertical distribution of dissolved oxygen (DO) continuously in time. Based on the simulated DO, the length of continuous oxygen-free state in the deepest layer was specified and then utilized to estimate the temporal changes of oxidation–reduction potential (ORP) using a polynomial regression model. Finally, a linear regression model for hydrogen sulfide was fitted from the observed ORP, based on which, the temporal changes of hydrogen sulfide concentration were modeled using the simulated ORP. The introduction of several calculations gave good simulated results of hydrogen sulfide concentration, and this approach can be considered useful for predictive and explanatory purposes in further research investigating toxic hydrogen sulfide at the hypolimnion of the reservoir.
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影响因子：
12.8
作者：
DUNNETTE, DA;CHYNOWETH, DP;MANCY, KH
通讯作者：
MANCY, KH
非中性稳定条件下垂直涡扩散系数的简单公式
影响因子：
--
作者：
B. Henderson
通讯作者：
B. Henderson
水下弱光环境下富营养化水体水质动态
DOI：
10.7132/jrcsa.kj00005284814
发表时间：
2009
期刊：
--
影响因子：
--
作者：
M. Harada;Kazuaki Hiramatsu;T. Saitoh;M. Mori;Atsushi Marui
通讯作者：
Atsushi Marui
美国密歇根州西南部三个水壶湖的氧化还原分层和盐化
DOI：
--
发表时间：
2012
期刊：
Water, Air and Soil Pollution
影响因子：
--
作者：
C. Koretsky;A. MacLeod;R. Sibert;C. Snyder
通讯作者：
C. Snyder
分层湖中的铁和硫化学：富铁硫化物络合物的证据
DOI：
--
发表时间：
2003
期刊：
影响因子：
--
作者：
G. Luther;B. Glazer;Shufen Ma;Robert E. Trouwborst;B. Shultz;G. Druschel;Charoenwan Kraiya
通讯作者：
Charoenwan Kraiya