Performancemeasurement of an airlift aeration device in an aquaculture tank
PAN Qiang1,ZHANG Jun-xin1,LIU Ming-tai2,LIU Yuan1,ZHANG Lei1,LIAN Yun1,LIU Jing-hua1
1.Key Laboratory of Nearshore Marine Environmental Research of Liaoning Higher Education,College of Marine Science and Environment,Dalian O-cean University,Dalian 116023,China;2.College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China
Abstract: A set of airlift aeration device for foam removing was self-designed,installed and operated in amariculture tank in a production workshop in order to observe its performance and diffusion distribution of dissolved oxygen.During the operation,the concentration,and distribution of dissolved oxygen were determined in the tank at given points and time,and then the performance indices of the aeratorwere evaluated.The results showed thatoxygen transfer coefficient(KLa(20))was0.77 h-1,and oxygen transfer efficiency(EA)5.20％,with themaximal aeration power efficiency(Ep)of 4.33 kg/(kW·h).The determination ofKLa(20),oxygen transfer efficiencyEAandEpof the aeration device revealed that the dissolved oxygen distribution of each sampling pointwas uniform,as the dissolved oxygen concentration increased synchronously.The aeration power efficiency was improved obviously because its arrangement form showed less energy consumption during power cycle.
潘强, 张俊新, 刘明泰, 刘远, 张蕾, 连云, 刘京华. 气提式增氧曝气装置在海水养殖池中的性能测定[J]. 大连海洋大学学报, 2016, 31(6): 673-677.
PAN Qiang, ZHANG Jun-xin, LIU Ming-tai, LIU Yuan, ZHANG Lei, LIAN Yun, LIU Jing-hua. Performancemeasurement of an airlift aeration device in an aquaculture tank. Journal of Dalian Ocean University, 2016, 31(6): 673-677.
2016, Vol. 31 
