| 摘要 |
FIELD: waste water treatment. SUBSTANCE: when extracting zinc ions from trade effluents formed, in particular, in ferrous and nonferrous metallurgy as well as from domestic sewage, oleic acid and triethanolamine are used as extractants and extraction process is carried out at pH 3-11. EFFECT: reduced expenses due to use of inexpensive extractant. 3 tbl, 3 ex |
