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首页> 美国政府科技报告 >Decontamination of Water Containing Bacillus Subtilis Var. Niger Spores by U. S. Army Field Water Purification Processes and Equipment
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Decontamination of Water Containing Bacillus Subtilis Var. Niger Spores by U. S. Army Field Water Purification Processes and Equipment

机译：含枯草芽孢杆菌水的去污。美国陆军水净化工艺和设备的尼日尔孢子

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A series of full-scale water decontamination studies was conducted. The purpose of these studies was to evaluate with field Army equipment the effectiveness of various water treating processes such as hypochlorination, coagulation, filtration, distillation, and ion exchange resin treatment in the decontamination of water containing the nonpathogenic, heat-resistant and chlorine-resistant spores of Bacillus subtilis var. niger, used to simulate a refractory biological warfare agent. A 99.999-percent removal or destruction of the test organism was designated as the criterion of effective decontamination. Results indicate that the process combining coagulation with ferric chloride and limestone, hypochlorination with calcium hypochlorite to a free chlorine residual of at least 5 mg/1, and filtration through a diatomite filter is effective in accomplishing a 99.999-percent removal or destruction of spores from water contaminated to a level of 1,000,000 isms per ml. Vapor compression distillation of fresh or saline water is also effective. (Author)

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