| 摘要 |
FIELD: sorbent-mediated waste water treatment. ^ SUBSTANCE: invention relates to applied ecology and can be used to free waste waters from ions of chromium, zinc, and other metals. Sawdust from different wood species is kept in trisodium phosphate solution, 2-8 g/L, for 10 h at ambient temperature while periodically stirring solution, after which sediment is filtered off, washed, and dried. ^ EFFECT: simplified preparation technology. ^ 1 tbl, 3 ex |
