数百家使用氯胺的水务公司都有经验 硝化问题，包括氮的流失 总余氯，游离氨的破坏， 亚硝酸盐浓度增加，以及潜在的细菌学 问题。高效可靠的硝化作用 控制策略有助于消除这些问题和 使氯胺的使用比过去更简单 过去。 对于寻求经济高效方式的公用事业管理人员 为了控制硝化作用，本文提供了一种很有前途的方法 亚氯酸钠的方法和应用。调查结果 亚利桑那州图森市为期六个月的试点研究表明 持续注入亚氯酸盐离子在 即使在低浓度下也能控制硝化作用 作为0.1毫克/升。 到目前为止，还没有广泛使用的控制方法 可用于控制硝化作用。每个公用事业公司都必须 手工制作自己的解决方案。虽然 相比之下，亚氯酸钠的成本相对较高 其他水处理化学品，小剂量 需要控制硝化作用，所以成本很高 化学反应更合理。 许多使用氯胺的供水商都非常担心 熟悉广泛的维护和采样 与不受控制的硝化作用相关的成本也是如此 因为信心的丧失可能会导致总的 大肠菌群违规或沸水警告。在里面 与这些成本相比 亚氯酸钠和化学进料系统似乎是一个问题 减价品包括18个参考文献、表格、图表。

Hundreds of water utilities using chloramines experience problems with nitrification, including loss of total chlorine residual, destruction of free ammonia, increases in nitrite concentration, and potential bacteriological problems. An effective and reliable nitrification control strategy can help eliminate these concerns and make the use of chloramines simpler than it has been in the past. For utility managers looking for cost-effective ways to control nitrification, this article offers a promising method, application of sodium chlorite. Results of a six-month pilot study in Tucson, Arizona, demonstrated that continuous feed of chlorite ion was effective at controlling nitrification even at concentrations as low as 0.1 mg/L. Until now, no widely usable control method was available to control nitrification. Each utility had to handcraft its own individual solution. Although the cost of sodium chlorite is relatively high compared with other water treatment chemicals, the small doses needed to control nitrification make the cost of this chemical more reasonable. Many water providers using chloramines are all too familiar with the extensive maintenance and sampling costs associated with uncontrolled nitrification, as well as the loss of confidence that can arise from a Total Coliform Rule violation or a boil water advisory. In comparison with these kinds of costs, the expense of sodium chlorite and chemical feed systems may seem a bargain. Includes 18 references, tables, figures.