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| 含沙高浊水架桥絮体的质量分形 | |
| 引用本文： | 李冬梅,金同轨,梅胜,谭万春.含沙高浊水架桥絮体的质量分形[J].中国给水排水,2004,20(11):52-54. |
| 作者姓名： | 李冬梅 金同轨 梅胜 谭万春 |
| 作者单位： | 1. 西安建筑科技大学,环境与市政工程学院,陕西,西安,710055;广东工业大学,建设学院,广东,广州,510643 2. 西安建筑科技大学,环境与市政工程学院,陕西,西安,710055 3. 广东工业大学,建设学院,广东,广州,510643 4. 长沙理工大学,化学与环境工程系,湖南,长沙,410076 |
| 基金项目： | 国家自然科学基金资助项目(50078043) |
| 摘 要： | 处理含沙量在20-30kg／m^3以上的高浊水时须采用高分子絮凝剂，然而对架桥絮体的构造特征却知之甚少，为此采用沉降及图像分析技术，探讨了含沙高浊水架桥絮体的分形结构特征。结果表明，稳态絮体具有多孔、开放的分形结构，渗透率较大。这种分形构造对絮体的混凝及沉降性能影响显著，质量分维值不同则沉速差异较大。 |
| 关 键 词： | 含沙高浊水 架桥絮体 质量分形 |
| 文章编号： | 1000-4602(2004)11-0052-03 |
Mass Fractal Dimension of Bridging Flocculated Aggregates in High Turbid Water with Slit Content |
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| LI Dong-mei.Mass Fractal Dimension of Bridging Flocculated Aggregates in High Turbid Water with Slit Content[J].China Water & Wastewater,2004,20(11):52-54. | |
| Authors: | LI Dong-mei |
| Affiliation: | LI Dong-mei~ |
| Abstract: | High molecular flocculant shall be used for treatment of high turbid water with slit content over 20-30 kg/m~3,but little was known about the structure of bridging flocculated aggregates.The fractal structure of bridging flocculated aggregates in high turbid water with slit content was discussed by using settling and image analysis technology.The result shows that the flocculated aggregates at steady state are porous and opened in fractal structure with larger infiltration rate.This fractal structure has significant impact on coagulation and settling performance of flocculated aggregates,and settling velocity is different greatly at various mass fractal dimensions. |
| Keywords: | high turbid water with silt content bridging flocculated aggregates mass fractal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |