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Pseudomonas aeruginosa for the Evaluation of Swimming Pool Chlorination and Algicides

机译：铜绿假单胞菌用于评估游泳池中的氯化物和杀藻剂

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Concentrations of ammonia and the chlorine stabilizer, cyanuric acid, which could be expected in swimming pools decreased the rate of kill by chlorine of the potential pathogen, Pseudomonas aeruginosa. The effect of cyanuric acid increased as the concentration of chlorine decreased, a fact of significance from a public health view. Quaternary ammonium algcides had little effect on the kill rate of chlorine, but an organic mercury algicide had a synergistic effect with chlorine when the chlorine activity was stressed by the addition of ammonia or the use of 100 times the normal concentration of bacteria. The effect of natural waters, rain, beaches, and swimming pools on the kill rate by 0.5 mg of chlorine per liter indicated that a treatment time of 1 hr or more was required to kill 99.9% of 106Pseudomonas cells per ml. The synergism of chlorine and the organic mercury algicide was also demonstrated with these waters and with sewage treatment plant effluents. The necessity of developing and using laboratory tests which simulate conditions in swimming pools with heavy loads of swimmers, as opposed to tests in chlorine demand-free conditions, is discussed. Samples taken from well-supervised swimming pools when the swimmer load had been especially high required treatment times of 1 to 3 hr to obtain 99.9% kills of the potential pathogen, P. aeruginosa, with 0.5 mg of chlorine per liter.
机译：游泳池中预期的氨和氯稳定剂氰尿酸的浓度降低了潜在病原体铜绿假单胞菌的氯杀灭率。从公众健康的角度来看，氰尿酸的作用随着氯浓度的降低而增加。季铵盐灭藻剂对氯的杀灭率几乎没有影响，但是当通过添加氨或使用正常浓度细菌的100倍来强调氯的活性时，有机汞灭藻剂与氯具有协同作用。天然水，雨水，海滩和游泳池对每升0.5 mg氯的杀灭率的影响表明，需要1小时或更长的处理时间才能杀死每毫升99.9％的106个假单胞菌细胞。这些水和污水处理厂的废水也证明了氯和有机除藻剂的协同作用。讨论了开发和使用实验室测试来模拟重负荷游泳者游泳池状况的必要性，而不是在无氯需求条件下进行的测试。当游泳者的负荷特别高时，从受到良好监督的游泳池中采集的样品需要1至3个小时的处理时间，才能以每升0.5 mg的氯获得99.9％的潜在病原体铜绿假单胞菌杀灭率。

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