发布时间:2025-01-24 19:26:22
净水明矾的化学式为KAl(SO4)2·12H2O,
明矾净水原理方程式为:
KAl(SO4)2 = K+ + Al3+ + 2SO42- 它在水中可以电离出两种金属离子:
而Al3+很容易水解: Al3+ + 3H2O = Al(OH)3(胶体)+ 3H+
生成的氢氧化铝胶体粒子带有正电荷吸附能力很强,与带负电的泥沙胶粒相遇,
很快聚结在一起,粒子越结越大,沉入水底使水澄清, 这样水就净化得清澈干净了
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