| METHOD OF EXTRACTING CHROMIUM (III) AND (VI) FROM INDUSTRIAL WASTE WATER | |
| 2024-04-27 | |
| 专利权人 | FEDERAL STATE BUDGETARY INST (FSBI-C) |
| 申请日期 | 2024-04-27 |
| 专利号 | RU2832282-C1 |
| 成果简介 | NOVELTY - Invention relates to treatment of industrial waste water from heavy metals, particularly from chromium (III) and (VI) compounds. Method of extracting chromium (III) and (VI) from industrial waste water involves treating the solution with an inorganic sorbent based on titanium dioxide when exposed to electromagnetic radiation, followed by separation of TiO2. Solution is preliminarily brought to pH 3, complexing agent Trilon B is added in molar ratio Trilon B:Cr – 2:1, mechanically activated with TiO2 in concentration of 1 g/l, illuminated with a light-emitting diode with wavelength of not more than 400 nm while stirring with a magnetic stirrer for one hour, TiO2 is removed by centrifugation. Further, 30% NaOH solution is added to the solution until pH ≥ 12.5, illuminated with ultraviolet light for one hour and removed by vacuum filtration through a membrane with pore diameter of 0.1 mcm. USE - Water treatment. ADVANTAGE - Method increases degree of purification of waste water from heavy metals, particularly from chromium (III) and (VI) compounds. 3 cl, 1 tbl, 2 ex |
| IPC 分类号 | C02F-001/32 ; C02F-001/62 |
| 国家 | 俄罗斯 |
| 专业领域 | 化学化工 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/16940 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | FEDERAL STATE BUDGETARY INST (FSBI-C) |
| 推荐引用方式 GB/T 7714 | PECHISHCHEVA N V,BURDINA L G,KIM A V. METHOD OF EXTRACTING CHROMIUM (III) AND (VI) FROM INDUSTRIAL WASTE WATER. RU2832282-C1[P]. 2024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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