| 摘要 |
<p>A method for treating waste water containing fluorine by using limestone, comprises using limestone as raw material, using acid which can react with limestone to produce soluble calcium salt as middle dielectric, reacting the soluble calcium salt with fluorine ion in the waste water to form insoluble calcium fluoride and the middle dielectric, reacting the middle dielectric with limestone to produce the soluble calcium salt, circulating and repeating, treating the waste water until reaching standard. The corresponding treating device contains reacting tank(1), circulating pump(2), neutralizing tower(3), settling tank(6) and sludge tank(7).</p> |
