【摘要】：利用殼牌爐粉煤灰水熱合成沸石,調(diào)節(jié)硅鋁物質(zhì)的量比為1.7合成Na A型沸石。通過單因素實驗和正交實驗優(yōu)化合成工藝條件,在堿液濃度為1 mol/L、晶化溫度為100℃、晶化時間為7 h、液固比(m L/g)為5∶1的條件下合成的Na A型粉煤灰沸石的脫氮能力較強,氨氮去除率達74.62%。分析正交實驗結(jié)果可知,各因素對Na A型沸石脫氮性能的影響程度:堿液濃度晶化溫度液固比晶化時間。對較優(yōu)產(chǎn)品進行分析,可知其結(jié)晶度較大、純度較高;晶體形貌完整、規(guī)則;沸石的孔道排列緊密有序。該Na A型沸石可用于處理氨氮廢水。
[Abstract]:Zeolite A was synthesized by hydrothermal synthesis of shell furnace coal ash and Na A zeolite was synthesized by adjusting the ratio of silicon to aluminum to 1.7. Single factor experiment and orthogonal experiment were used to optimize the synthesis conditions. When the concentration of alkali solution was 1 mol/L, the crystallization temperature was 100 鈩，

本文編號：2444875