After dam foundation grouting treatment, the drainage holes still have water flowing out with educt. 坝基灌浆处理后排水孔内仍有地下水流出,并有析出物生成。
A Study on Eliminating Educt Alkali from Coarse Sodium Tungstate with Electrodialysis Method 电渗析法脱除粗钨酸钠中的游离碱研究
It has been proved that it is economical and feasible to eliminate educt alkali from coarse sodium tungstate with electrodialysis method of negative ion ( 1) selective membrane. 研究表明:一价阴离子选择膜电渗析法从粗钨酸钠溶液中脱除游离碱是经济可行的。