高纯度铜锌合金颗粒抑制军团菌生长研究

Study on inhibition effect of high pure copper and zinc alloy granule on proliferation of Legionella pneumophila

目的用除藻灭菌装置破坏军团菌微生态,抑制军团菌生长。为建立对环境无副作用、运行费用少、效果持久的防范措施提供依据。方法2005年7月上旬,采集军团菌阳性的空调冷却水,模拟空调冷却塔条件,用高纯度铜锌合金颗粒作填料设置旁滤装置建立实验模型,同时设置对照模型。每周取2个模型中的水样测军团菌数、藻体数、阿米巴数和各种水质参数,连续4周。结果建立模型1周后,实验模型中只可见体积较小的胶小球藻,军团菌数随实验时间的增加,下降幅度增加,至第4周呈稳定趋势;对照模型随实验时间的增加,军团菌数和藻体数均呈增加趋势,并可见阿米巴滋养体。结论用高纯度铜锌合金颗粒作填料设置旁滤装置,既可以杀灭与之接触的军团菌又可以除去藻类、阿米巴等军团菌共生物,降低军团菌的繁殖速率,使其不至于浓度过高污染周围环境或传播到其他冷却塔,具有较好的推广应用前景。

Objective To restrain proliferation of Legionella pneumophila using the set of removing alga and bacterium by destroying its microecoenvironment and provide guide for establishing the way that can control proliferation and propagation of Legionella pneumopila for a long time and no negative effect on environment. Methods In the first ten days of July 2005, the air-conditloning cooling water was gathered to constitute experiment ecopattem using high pure copper and zinc alloy granule and contrapose ecopattem and every week sampling water was gathered to detect Leginella pneumophila, alge, amoebae and per correlative water quality. Results Afer ecopattem was constituted, only lesser algae were observed and Legionella pneumophilar declined as fast as temporal increase until the fourth week in experiment ecopattern, but Legionella pneumophilar and algae increased in contrapose eeopattern. At one time no ameba was detected in experiment ecopattern but ameba syst and nourishing body was detected in contrapose eeopattern. Conclusion Side sieve stuffed full of high pure copper and zinc alloy granule can kill not only Legionella pneumophila, but also can get rid of algae and ameba to depress proliferative speed of Legionella pneumophila and therefore possesses preferably applied foreground.