| 河道疏浚底泥余水强化絮凝处理工艺优化与机理 |
| |
| 引用本文： | 唐云飞,王荣昌,马利民,赵建夫.河道疏浚底泥余水强化絮凝处理工艺优化与机理[J].净水技术,2012,31(3):93-97. |
| |
| 作者姓名： | 唐云飞 王荣昌 马利民 赵建夫 |
| |
| 作者单位： | 同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室,长江水环境教育部重点实验室,上海200092 |
| |
| 基金项目： | 国家水专项，国家科技支撑计划课题，教育部留学回国人员科研启动基金，上海市建委重大科研项目，同济大学青年优秀人才培养行动计划，上海市科技人才计划项目 |
| |
| 摘 要： | 从三种絮凝剂氯化铁FeCl3、硫酸铝Al2(SO4)3和聚合氯化铝(PAC)中优选出FeCl3用于处理重庆梁滩河疏浚底泥的余水。考察了在混凝剂FeCl3与助凝剂聚丙烯酰胺(PAM)不同投加量下,强化絮凝对水中浊度、悬浮固体浓度(SS)以及COD的去除效果。探讨并分析了Zeta电位和粒径分布对疏浚底泥余水处理效果的影响。研究结果表明:当余水Zeta电位绝对值接近于零时,采用强化絮凝的处理效果较好;达到同样处理效果,平均粒径较小的河流疏浚底泥余水所需的絮凝剂和助凝剂的投加量较小。
|
| 关 键 词： | 强化絮凝 疏浚余水 Zeta电位 粒径分布 |
Mechanism and Optimization of Enhanced Flocculation Process for Sediment Water Treatment of River Dredging |
| |
| Tang Yunfei
,
Wang Rongchang
,
Ma Limin
,
Zhao Jianfu.Mechanism and Optimization of Enhanced Flocculation Process for Sediment Water Treatment of River Dredging[J].Water Purifcation Technology,2012,31(3):93-97. |
| |
| Authors: | Tang Yunfei Wang Rongchang Ma Limin Zhao Jianfu |
| |
| Affiliation: | (State Key Laboratory of Pollution Control and Resource Reuse,Key Laboratory of Yangtze Aquatic Environment,MOE,College of Environmental and Science Engineering,Tongji University,Shanghai 200092,China) |
| |
| Abstract: | Ferric chloride(FeCl3) was selected as the main flocculant and polyacrylamide(PAM) was used as coagulant aid for treating the dredging water from Chongqing Liangtan river.The effects of flocculant and coagulant aid dosages on removal rate of turbidity,suspended solid(SS) and COD were investigated.The effects of Zeta potential and particle size on treating performance were also discussed.It was proved that the optimal flocculation performance was achieved when the absolute Zeta potential approached zero.Lower dosages of flocculant and coagulant aid were required when the average particle size of dredging water was smaller. |
| |
| Keywords: | enhanced flocculation sediment water of river dredging Zeta potential particle size distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
