1.软化水:系指将原水中的硬度(包括暂时硬度和永久硬度)降低或去除至一定程度的水。除去的方法是使原水通过以食盐再生的阳离子交换剂,水中的钙、镁离子与交换剂上的钠离子进行交换而去除或降低了水中的钙、镁含量,也即是降低或去除了硬度。但 1. Softened water: Water that reduces or removes hardness (including temporary hardness and permanent hardness) in raw water to a certain degree. The method of removing is to make the raw water pass through the cation exchanger regenerated with salt, exchange the calcium and magnesium ions in the water with the sodium ion on the exchanger to remove or reduce the content of calcium and magnesium in the water, that is, reduce or remove the hardness. . but