This study successfully recycled alum sludge with either lithium slag or bottle glass to make high purity zeolite LTA beads. The basic synthesis approach was to fuse the waste material with sodium hydroxide then complete hydrothermal crystallization. Separate fusion of individual wastes promoted zeolite LTA formation compared to combined fusion. Preferred synthesis conditions were: 10 Na₂O:Al₂O₃:2.5 SiO₂:300 H₂O; hydrothermal temperature = 80 °C; time = 5 h. Zeolite LTA purity was between 80 and 85 wt% from the two waste combinations. Use of pseudoboehmite and carboxymethyl cellulose favoured granulation/extrusion/spheronization of zeolite LTA powder. However, the beading process decreased calcium exchange capacity (CEC) from 99.5 to 37 mg Ca²⁺/g for alum sludge + lithium slag and from 64.5 to 37 mg Ca²⁺/g for alum sludge + waste glass. Additionally, when using 20 wt% pseudo-boehmite as a binder the ion-exchange equilibrium time increased from 60 to 300 min. The importance of not only making zeolite powder from waste materials but also to extend studies to shaped forms was evident. It is recommended that future studies should also focus on making extrudates or beads as these are the forms used commercially.

该研究成功地将铝泥与锂渣或瓶玻璃一起回收，以制造高纯度沸石 LTA 珠粒。基本的合成方法是将废料与氢氧化钠熔合，然后完成水热结晶。与组合融合相比，单独的废物单独融合促进了沸石 LTA 的形成。优选的合成条件为：10 Na ₂ O:Al ₂ O ₃ :2.5 SiO ₂ :300 H ₂哦; 热液温度 = 80 °C；时间 = 5 小时。两种废物组合的沸石 LTA 纯度在 80 至 85 重量％之间。使用假勃姆石和羧甲基纤维素有利于沸石 LTA 粉末的造粒/挤出/滚圆。然而，珠粒工艺将铝泥 + 锂渣的钙交换容量 (CEC) 从 99.5 降至 37 mg Ca ²⁺ /g ，将钙交换容量 (CEC)从 64.5 降至 37 mg Ca ²⁺/g 为明矾泥 + 废玻璃。此外，当使用 20 wt% 拟勃姆石作为粘合剂时，离子交换平衡时间从 60 分钟增加到 300 分钟。不仅用废料制造沸石粉末而且将研究扩展到成型形式的重要性是显而易见的。建议未来的研究还应侧重于制造挤出物或珠子，因为这些是商业上使用的形式。