新型吸附材料制备及处理含DMAC废水试验研究*

合成了主要成分为粉煤灰和活性炭的新型吸附材料，并通过单因素试验考察了吸附材料处理含DMAC（N， N-二甲基乙酰胺）废水的效果。吸附材料最佳制备条件：粉煤灰与活性炭质量比为3∶1，硅酸钠加入量为25%（硅酸钠占粉煤灰、活性炭、硅酸钠总质量的质量分数），煅烧温度为800 ℃。吸附材料处理含N， N-二甲基乙酰胺废水最佳条件：pH为3，吸附剂投加量为25 g/L，吸附时间为40 min，吸附温度为30 ℃，在此条件下CODCr去除率为75.92 %。

Preparation of a new type of adsorption material to treat DMAC contained wastewater

The adsorption performance of a new type of adsorption material based on the fly ash and activated carbon as main contents was researched.The effect of it treating DMAC（N，N-dimethyl acetamide） contained wastewater was investigated by the single factor experiment.The optimum preparation conditions：the mass ratio of fly ash to activated carbon was 3∶1，sodium silicate dosage was 25%（mass fraction of sodium silicate accounts for total mass of fly ash，activated carbon，and sodium silicate）， and the calcining temperature was 800 ℃.The optimum conditions of the new material treating the DMAC wastewater were: pH was 3，adsorbent dosage was 25 g/L，absorbing time was 40 min，and absorbing temperature was 30 ℃.The removal rate of CODCr reached 75.92% under the best conditions.