发电厂循环水养鱼回水的处理工艺研究

讨论了循环水养鱼后的水质变化情况及对生产的影响。通过对水中污染物的分析，论述了生物化学法处理的可能性并对其进行了试验研究，取得了较满意的效果。适宜的处理条件为：采用ＹＤＴ弹性立体填料及可变微孔曝气器，在水温２０～２５℃、水气比１１、停留时间１～２ｈ时处理后的水质远远优于循环水养鱼前的水质，且运行费用较低，便于管理。

The Treatment Process of Drain Water from Fishpond to Circulating Water in Power Plant

This article discuss the situation of drain water quality changing from fishpond to circulating water tower and affecting for producing.After analyzing pollutants of drain water,we discuss the possibility of bio-oxideation treatment and test it,the process has obtained satisfactory,suitable condition is:using YDT elastic space filler and changeable microhole aerationer,temp.20～35℃,ratio of water and gas:1∶1,retention time:1～2hour.The treated water quality is better than circulating water quality before enter fishpond.The treatment cost is fairly low and easily manage.