| METHOD OF PURIFYING WASTE WATER FROM FLUORIDES | |
| 2023-12-26 | |
| 专利权人 | FEDERAL STATE BUDGETARY EDUCATIONAL (BUDG-Non-standard) |
| 申请日期 | 2023-12-26 |
| 专利号 | RU2829870-C1 |
| 成果简介 | NOVELTY - Invention relates to treatment of industrial waste water from fluoride ions by sedimentation and can be used for treatment of waste water from production of mineral fertilizers or aluminium metal. Method of purifying waste water from fluoride ions consists in treating them with a calcium-containing reagent until reaching pH 9-11 and then separating the liquid and solid phases by settling. Calcium-containing reagent used is calcium carbonate, preliminary thermally treated at temperature of 100-120 °C. Precipitation is carried out at a ratio of calcium : fluorine equal to (1.0-1.5):1. In order to separate the solid and liquid phases, deposition is carried out using a sodium salt of acrylic acid, which is a medium-molecular low-charge anionic flocculant in dosage of 5-20 mg/dm3. USE - Water treatment. ADVANTAGE - Providing a highly efficient method of purifying waste water from fluoride ions with content of more than 100 g/dm3. 1 cl, 6 ex |
| IPC 分类号 | C02F-001/52 ; C02F-001/58 |
| 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/18726 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | FEDERAL STATE BUDGETARY EDUCATIONAL (BUDG-Non-standard) |
| 推荐引用方式 GB/T 7714 | AZOPKOV S V,KRUCHININA N E,KUZIN E N,et al. METHOD OF PURIFYING WASTE WATER FROM FLUORIDES. RU2829870-C1[P]. 2023. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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