粉煤灰复合吸附剂的研制及其在工业废水除氟中的应用

Study on Fly Ash Compounded Mixture and Its Application in Treatment of Fluorine containing Wastewaster

粉煤灰复合吸附剂是一种新型得除氟剂 ,具有良好的吸附性能。在一定条件下 ,可用于处理高含氟量的工业废水 ,粉煤灰复合吸附剂处理 50mg/L左右的含F- 废水时 ,当投加量为 0 .6% -0 .8%时 ,去除率可达 90 %以上。从而达到排放标准。粉煤灰复合吸附剂所需原料易得 ,除氟后可将原料固化制成建筑用砖 ,合理利用。

Fly ash compounded mixture is preactivated at proper temper ature before it is used to treat wastenater containing fluorine about 50mg/L.Fluorine removal reaches 90% when the addition is 0.6%-0.8% at a pH value range from 3 to 11.The flourin content in purified water is about 8mg/L.