Abstract Deionized, tap and two kinds of commercially available mineralized water, after supplementation with ammonia, were treated with low-pressure, low-temperature glow plasma (GP) of low frequency. Treating hard water with ammonia provided the removal of permanent and temporary water hardness already at room temperature. On such treatment, mineralized water supplemented with ammonia was partly demineralized. Precipitated rhombohedral deposit from hard water did not turn into scale even when maintained in suspension for 3 days at around 90°C. In such manner, the use of other chemicals for prevention from the scale formation and/or for the scale removal is entirely dispensable. The rate and yield of precipitation depended on the concentration of admixed ammonia and the GP treatment time. Ammonia served as a ligand of calcium, magnesium and ferric central atoms of corresponding salts constituting the hardness. Moreover, ammonia constituting the atmosphere of the treatment was arrested inside aqueous clathrates. So, stabilized ammonia solutions could potentially be utilized as an environmental-friendly nitrogen fertilizer. The precipitate could also be utilized for the same purpose.

中文翻译：

---

低温低压低频辉光等离子体氨处理水的结构及部分理化和功能特性

摘要 去离子水、自来水和市售两种矿化水在补充氨水后，采用低压、低温的低频辉光等离子体（GP）进行处理。用氨水处理硬水可以去除在室温下已经存在的永久和临时水硬度。在这样的处理中，补充有氨的矿化水被部分脱矿质。即使在 90°C 左右悬浮 3 天，硬水中沉淀的菱形沉积物也没有变成水垢。以这种方式，完全不需要使用其他化学品来防止水垢形成和/或用于去除水垢。沉淀的速率和产率取决于混合氨的浓度和 GP 处理时间。氨作为钙的配体，构成硬度的相应盐的镁和铁中心原子。此外，构成处理气氛的氨在水包合物内被阻止。因此，稳定的氨溶液有可能被用作环境友好的氮肥。沉淀物也可用于相同目的。