日本不卡一视频在线播放,欧美日韩一区二区亚洲,国内熟女在线精品国自产在线,女同中文字幕一区二区

Concept: Softening water aims to reduce the hardness of water through physical or chemical means. The hardness of water is mainly composed of cations such as calcium and magnesium. In the process of softening water treatment, the composition and structure of sulfates and chlorides that are prone to scale formation will be changed, making them less prone to scale formation during water heating and evaporation, thereby reducing the hardness of water and achieving the purpose of softening.

General process: The specific methods for softening water treatment include ion exchange method, heat exchange method, chemical precipitation method, and reverse osmosis method, etc