Abstract
In order to investigate the actual oxygen transfer effect of micropore aerator,a comparative experimental study on micropore aerator and aerator was carried out for their aeration ability utilizing the laboratory 10 m diameter standard tank containing clean water as a testing platform,at the water temperature 20 ℃,atmospheric pressure 101.325 kPa and the initial DO level 0 mg/L,and following the standard testing procedure-SC/T 6009-1999,the test method of oxyen-enriched capacity for aerator. The result shows micropore aerator can efficiently increase the DO level at the bottom area of aquaculture waters. Compared with the 1.5Kw aerator with the average aerating capacity of 0.66 kg/h,the average aeration capacity of micropore aerator with 20 m laying pipe is 0.25 kg/h,0.40 kg/h for 42 m,1.12 kg/h for 98 m,and 1.55 kg/h for 200 m. Its oxygen-enriching capacity can exceed jet aerator at the pipe laying density of our current experiment. In the case of the same air inlet pressure,the oxygen-enriching velocity of micropore aerator increases with the increasing of the pipe length.
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