| pH值对海水混凝处理过程中絮凝效能的影响 |
| |
| 引用本文： | 张秀芝,王静,张雨山,郭鸿博,张爱君.pH值对海水混凝处理过程中絮凝效能的影响[J].盐业与化工,2011,40(1). |
| |
| 作者姓名： | 张秀芝 王静 张雨山 郭鸿博 张爱君 |
| |
| 作者单位： | 国家海洋局,天津海水淡化与综合利用研究所,天津,300192 |
| |
| 基金项目： | 国家“十一五”重大攻关课题资助项目(2006BAB03A08); 中央级公益性科研院所基本科研业务费专项资金项目(K-JBYWF-2007-T08) |
| |
| 摘 要： | 以海水为试验对象,协同使用天然高分子絮凝剂壳聚糖(CTS)与无机絮凝剂FeCl3,通过烧杯试验,考察pH值对浊度等污染物去除效果的影响。试验结果表明:pH值对混凝效果有较大影响,污染物最佳去除效果的pH值范围并不同步。在pH=7.0～9.0时,浊度和CODMn去除率最高;而TP和UV254去除率随pH值的升高而呈下降趋势。相对于海水(pH≈7.5)而言,降低pH值,可以使UV254,总磷(TP)的去除率分别提高6.1%1,6.5%;升高pH值,化学需氧量(CODMn)去除率可提高4.4%,因此调节pH值是一种经济有效的强化混凝手段。
|
| 关 键 词： | 海水 pH值 强化絮凝 污染物去除 |
Impact of pH Value on Flocculation Efficiency in the Process of Seawater Coagulation Treatment |
| |
| ZHANG Xiuzhi,WANG Jing,ZHANG Yushan,GUO Hongbo,ZHANG Aijun.Impact of pH Value on Flocculation Efficiency in the Process of Seawater Coagulation Treatment[J].Jounral of Salt and Chemical Industry,2011,40(1). |
| |
| Authors: | ZHANG Xiuzhi WANG Jing ZHANG Yushan GUO Hongbo ZHANG Aijun |
| |
| Affiliation: | ZHANG Xiuzhi,WANG Jing,ZHANG Yushan,GUO Hongbo,ZHANG Aijun (The Institute of Seawater Desalination and Multipurpose Utilization,SOA,Tianjin 300192,China) |
| |
| Abstract: | Natural polymer flocculant chitosan(CTS) and inorganic flocculant FeCl3 were used coordinately in the seawater coagulation treatment.Through the beaker tests,influence of pH value on removal effect of turbidity and other pollutants was investigated.The results showed that pH value had great impact on the coagulation efficiency and the best pH value range of optimum pollutant removal effectiveness was not synchronized.While pH ranging between 7.0 and 9.0,the highest removal rates of turbidity and chemical ox... |
| |
| Keywords: | seawater pH coagulation enhancing treatment removal of pollutant |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
