对于全世界11亿没有 获得更好的饮用水供应、使用点 （POU）次氯酸钠水处理 （NaOCl）被证明可以降低腹泻的发病率 病然而，NaOCl的剂量建议 家庭水处理和灾害应对 水处理的差别很大。在这项研究中，106个水样本 来自各种改良和未改良产品的样品 对16个国家的来源进行了测试，以确定 可以制定标准化的NaOCl剂量制度。 结果表明，对于家庭水处理 单独使用NaOCl，剂量为1.875 mg/L 结果表明，NaOCl对86.6%的样品有效 浊度<10 ntu，剂量为3.75 mg/L NaOCl 对91.7%的未改善来源有效 浊度为10-100 ntu。在测试结果的基础上 还建议采用POU加氯方案 采用建议的游离余氯标准 添加NaOCl 1小时后的浓度<2.0 mg/L且>0.2 储存24小时后为mg/L。包括29个参考文献、表格和图表。

For the 1.1 billion people worldwide who do not have access to improved drinking water supply, point-of-use (POU) water treatment with sodium hypochlorite (NaOCl) is proven to reduce the incidence of diarrheal disease. However, NaOCl dosage recommendations for both household water treatment and disaster response water treatment vary significantly. In this study, 106 water samples from a variety of improved and unimproved sources in 16 countries were tested to ascertain whether a standardized NaOCl dosage regime could be developed. Results indicated that for household water treatment with NaOCl alone, a dose of 1.875 mg/L NaOCl proved effective in 86.6% of samples with turbidity < 10 ntu and a dose of 3.75 mg/L NaOCl was effective in 91.7% of unimproved sources with turbidity of 10-100 ntu. On the basis of test results, it is also recommended that POU chlorination programs adopt a proposed criteria for a free chlorine residual of < 2.0 mg/L 1 hour after NaOCl addition and > 0.2 mg/L after 24 hours of storage. Includes 29 references, tables, figures.