期刊论文

Variation of Dissolved Oxygen in Water After Passing Through the Ultrasonic Liquid Whistle Aerator

中文

中国农学通报

1000-6850

2017

33

11

142-146

国家自然科学基金“增氧灌溉条件下作物水肥高效利用机理的研究”（31272248）； 国家国际科技合作项目“东江湖外源污染阻控关键技术的研究”（2013DFG91190）；

本校为第一机构

为了研究低溶解氧含量的水体经过液哨超声波增氧装置之后,溶解氧含量的增加量及其随时间的变化趋势,本研究进行了增氧后试验水的静置试验,并监测了水体中溶解氧含量随时间变化趋势。研究共设置了6组实验,2个变量,即添加簧片与否以及流量变化。结果表明：该装置添加簧片组增氧后试验水中的溶解氧含量在2 h内还会继续增加,2 h达到最大值;2 h后,水中溶氧量会急剧下降;6 h后,溶氧量下降速率变缓;到20 h的时候,试验水溶氧量趋于稳定状态,达到7.4mg/L左右。而未添加簧片的对照组同样在2 h达到一个峰值,2-3 h的时候,溶氧量会有小幅度下降,之后溶氧量会继续增加,最后在20 h的时候,溶氧量趋于平衡状态,达...

To study how water with low dissolved oxygen changes over time after passing ultrasonic liquid whistle aeration, we conducted static tests of the water after aeration and monitored the changing trends of the dissolved oxygen content in water over time. Six test groups were set with two variables which were reed and flow. The results showed that after passing ultrasonic liquid whistle aeration, dissolved oxygen content in water of groups with reed increased and reached the maximum at 2 hours. 2 hours later, the dissolved oxygen content decreased...