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化工学报  2014 

浅水湖泊升流循环复氧装置的研制与性能

DOI: 10.3969/j.issn.0438-1157.2014.02.049, PP. 718-723

Keywords: 曝气,需氧,环境,富营养化,太湖

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Abstract:

本研究为浅水型湖泊“黑水团”暴发后的应急复氧研制出三套升流循环复氧装置。三种装置均采用气弹释放循环复氧流复氧,分别为Ⅰ封闭曝气型、Ⅱ敞口曝气型、Ⅲ敞填料曝气型装置。小试结果显示Klas指标Ⅲ型比Ⅰ型、Ⅱ型分别高出179%、51%;Qc指标Ⅲ型比Ⅰ型、Ⅱ型分别高出167%、50%;ε指标Ⅲ型比Ⅰ型、Ⅱ型分别高出176%、51%;Ⅲ型装置功率因子E比Ⅰ型、Ⅱ型分别高出29%、50%。中试于太湖边沉藻池中采用模拟“黑水团”的沉藻池水进行实验,中试型Ⅲ型多面球形填料装置可使水深1.8m,面积200m2模拟黑臭水体边缘溶氧28h内恢复到1.69mg·L-1,供氧效率达到26%,并对水中CODCr、氨氮等的降解具有良好的作用。该设备初步证明可用于类似太湖黑臭团暴发时水体的应急治理领域。

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