摘要
介绍了扬水曝气器对水库水质的改善。扬水曝气器的混合和充氧作用使水库中下层水体溶解氧的下降趋势得到遏制,底泥表面溶解氧均维持在2mg/L以上,泥面上0.5m处的溶解氧维持在3mg/L以上,越接近扬水曝气器,溶解氧越高。同时抑制了水库底泥中氨氮的释放,与2005年同期相比,氨氮降低了95%。运行结果表明,扬水曝气技术对汾河水库的水质改善具有显著的效果。
Test was completed to analyze the improvement of water quality in Fenhe River Reservoir by water lifting and aeration facility.After water lifting and aeration facility is put into operation,declining tendency for dissolved oxygen(DO)is withheld,and DO maintains above 2 mg/L and 3 mg/L in the lower level of water and 0.5 m over bottom sediment respectively,the nearer to the water lifting and aeration facility,the more dissolved oxygen exists.Ammonia nitrogen maintains 95% lower than that of the same period in 2005,and anticipated result is obtained.It indicates that water lifting and aeration technology can restrain the release of ammonia nitrogen effectively from the bottom sediment of Fenhe Ri-ver Reservoir,and can improve water quality significantly.
出处
《供水技术》
2007年第4期13-16,共4页
Water Technology
关键词
扬水曝气
溶解氧
氨氮
水质改善
water lifting and aeration
dissolved oxygen
ammonia nitrogen
improvement of water quality
