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碳酸鎂作为凈水剂最先在美国生产中获得应用,并对它作出了相当高的评价。碳酸鎂在水处理中的应用,不但可得到凈化水的目的,同时也具有软化水的作用。其基本原理为:在原水中同时投入石灰和碳酸鎂这两种药剂,其中的石灰一方面与混凝剂碳酸鎂起化学反应形成具有凝聚作用的氢氧化鎂,另一方面石灰又与原水中所含的鎂盐作用生成氢氧化鎂。这些氢氧化鎂就与原水中的污浊物质聚凝成大颗粒的凝聚体,从而达到凈化水的目
Magnesium carbonate was first used as a water purifier in US production, and it has made a very high evaluation. The application of magnesium carbonate in water treatment can not only obtain the purpose of purified water, but also have the function of softening water. The basic principle is that the two agents of lime and magnesium carbonate are injected into the raw water at the same time. The lime on the one hand reacts with the coagulant magnesium carbonate to form a magnesium hydroxide with agglomeration effect, and on the other hand, the lime is in contact with the raw water. The magnesium salt contained acts to produce magnesium hydroxide. These magnesium hydroxides coagulate with the contaminants in the raw water to form large-particle agglomerates, thereby achieving the goal of purifying water.