Suitable conditions of treatingacid Cd- containing effluent and methods for Cd-recovering were also investigated.
实验确定了处理酸性含镉废水的适宜条件，同时探讨了从废水中回收金属镉的方法。
2
The process involves taking titanium dioxide and treating it with silica, silicone grease or silicic acid for a few minutes.
这个过程包括以二氧化钛反应润滑脂或硅烷、硅酸几分钟。
3
The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted acid dipping.