闭合循环水产养殖系统中气/液混合装置的增氧效果

为了研究纯氧气/液混合装置在循环水养殖系统中的实际使用效果，对闭合循环水产养殖系统中气/液混合装置的氧气吸收效率（absorption efficiency，AE）及运行效果进行了研究。结果表明，气/液混合比（gas to liquid ratio，G/L）变化在0.333%～3.333%（O2流量0.57～5.70 g/min）之间时，气/液混合装置的平均氧气吸收效率变化在94.001%～36.049%之间。当G/L=0.667%（O2流量1.141 g/min），在30.5℃、26.3℃、22.9℃和19.2℃水温条件下，气/液混合装置的氧气吸收效率别为87.833%、90.451%、93...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 6; pp. 147 - 152
Main Author 谭洪新 刘文畅 孙大川 罗国芝 马念念
Format Journal Article
LanguageChinese
Published 上海水产养殖工程技术研究中心，上海 201306 2014
上海高校知识服务平台上海海洋大学水产动物育种中心，上海 201306%上海海洋大学水产与生命学院，上海 201306
上海海洋大学水产与生命学院，上海 201306
上海水产养殖工程技术研究中心，上海 201306%上海海洋大学水产与生命学院,上海,201306
Subjects
吸收效率
气
氧气
水产养殖
液混合装置
温度
闭合循环
氧气
温度
aquaculture
gas/liquid mixing device
气/液混合装置
temperature
closed recirculating
吸收效率
oxygen
闭合循环
absorption efficiency
水产养殖
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.06.018

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Summary:为了研究纯氧气/液混合装置在循环水养殖系统中的实际使用效果，对闭合循环水产养殖系统中气/液混合装置的氧气吸收效率（absorption efficiency，AE）及运行效果进行了研究。结果表明，气/液混合比（gas to liquid ratio，G/L）变化在0.333%～3.333%（O2流量0.57～5.70 g/min）之间时，气/液混合装置的平均氧气吸收效率变化在94.001%～36.049%之间。当G/L=0.667%（O2流量1.141 g/min），在30.5℃、26.3℃、22.9℃和19.2℃水温条件下，气/液混合装置的氧气吸收效率别为87.833%、90.451%、93.606%和94.001%；其中，试验水温为19.2℃时， AE达到最大（94.001%），混合器出水溶解氧浓度达13.36 mg/L。当G/L大于或小于0.667%时，AE均随G/L的变化而降低；各温度组AE值的方差分析表明，温度对AE值有显著影响。
Bibliography:11-2047/S
aquaculture;oxygen;temperature;gas/liquid mixing device;absorption efficiency;closed recirculating
Control of dissolved gases, especially oxygen and carbon dioxide, is an essential component of closed recirculating aquaculture systems. The use of oxygenation in closed recirculating aquaculture systems increases the mass of fish that can be supported in a given water flow by removing oxygen as a limiting factor to a system’s carrying capacity. In general, oxygenation technique in aquaculture is relatively mature with well established operational principles, techniques, and equipment. Since the 1970s, pure oxygen gas has been used as an economical means of providing supersaturated dissolved oxygen and thereby intensifying fish production in recirculating systems. Use of pure oxygen can lower fish production costs by supporting high fish and feed loading rates and reducing water flow requirements, which in turn reduces the size and cost of pumping, culture tanks, and water reuse equipment. Transferring p
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.06.018