After soaking by the lye, the cake layer on the membrane surface was removed basically. 经过碱液浸泡以后,膜表面滤饼层基本去除,膜表面结构基本恢复。
Amorphous silicon dioxides on the outer surface were removed by hydrothermal treatment, and the passable rate of the mesoporous tubes was increased as a result. 通过水热处理除去外表面无定型二氧化硅,提高介孔孔道外表面的通畅性。
When magnesium on serpentine surface is removed by acid dissolving, the IEP pH of serpentine drops from 11.8 to 6.1, and the dispersion and separation between serpentine and pyrite become much easier. 以酸溶出表面镁并除去溶解液后,蛇纹石的等电点pH由11.8下降至6.1,蛇纹石与黄铁矿之间的分散和分离的难度均大大降低。
The dirt on the insulator surface shall be removed before inspection. 验收前应清除绝缘子表面的污垢。
Through high temperature enzyme treatment, coverage on the surface is partially removed. 因此,通过高温酶退浆处理,可部分剥除纤维表面的覆盖层,使天然彩棉充分显色,并保持较好的色牢度,同时可起到去毛、除杂和柔软作用。