| 熊道文,熊珊,陈湘斌,虞少嵚,王合德.电絮凝去除废水中多种重金属影响因素研究[J].装备环境工程,2014,11(3):76-81. XIONG Dao-wen,XIONG Shan,CHEN Xiang-bin,YU Shao-qin,WANG He-de.Influencing Factors on Heavy Metals Removal by Electrocoagulation Treatment[J].Equipment Environmental Engineering,2014,11(3):76-81. |
| 电絮凝去除废水中多种重金属影响因素研究 |
| Influencing Factors on Heavy Metals Removal by Electrocoagulation Treatment |
| 投稿时间：2014-02-10 修订日期：2014-03-17 |
| DOI：10.7643/issn.1672-9242.2014.03.016 |
| 中文关键词: 电絮凝 重金属 废水 铁电极 |
| 英文关键词:electrocoagulation heavy metals wastewater iron electrode |
| 基金项目:湖南省环保科技项目(2013229) |
| 作者 | 单位 |
| 熊道文 | 中南勘测设计研究院, 长沙 410014;水处理湖南省工程研究中心, 长沙 410014 |
| 熊珊 | 中南勘测设计研究院, 长沙 410014;水处理湖南省工程研究中心, 长沙 410014 |
| 陈湘斌 | 中南勘测设计研究院, 长沙 410014;水处理湖南省工程研究中心, 长沙 410014 |
| 虞少嵚 | 中南勘测设计研究院, 长沙 410014;水处理湖南省工程研究中心, 长沙 410014 |
| 王合德 | 中南勘测设计研究院, 长沙 410014;水处理湖南省工程研究中心, 长沙 410014 |
|
| Author | Institution |
| XIONG Dao-wen | Zhongnan Engineering Corporation,Changsha 410014, China;Water Treatment Engineering Research Center of Hunan,Changsha 410014, China |
| XIONG Shan | Zhongnan Engineering Corporation,Changsha 410014, China;Water Treatment Engineering Research Center of Hunan,Changsha 410014, China |
| CHEN Xiang-bin | Zhongnan Engineering Corporation,Changsha 410014, China;Water Treatment Engineering Research Center of Hunan,Changsha 410014, China |
| YU Shao-qin | Zhongnan Engineering Corporation,Changsha 410014, China;Water Treatment Engineering Research Center of Hunan,Changsha 410014, China |
| WANG He-de | Zhongnan Engineering Corporation,Changsha 410014, China;Water Treatment Engineering Research Center of Hunan,Changsha 410014, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 以铁作为电极,研究电絮凝法处理含多种重金属废水的影响因素及效果。 方法 通过控制 pH、停留时间、电力密度、电导率、废水初始浓度等因素至不同水平,考察处理效果、能耗及极板消耗的变化。 结果 随着停留时间、 pH 值及电力密度的升高,处理效果越好,但升高至一定程度后, 处理效果提升并不明显; 电导率对处理效果影响并不显著, 但过低的电导率会增加能耗;废水初始浓度越高,要达到处理目标所需的能耗及极板消耗均越高。 结论 当 pH 为 8 . 5 ~9 . 0 、进水电导率为 1500 ~ 2000 μs / cm、停留时间为 3 ~ 4 min、废水初始质量浓度<20 mg / L、电力密度为 13 . 2 ~ 19 . 8 A / m2时,处理效果最理想,对总铜、总镍、总铅、总锌、总镉及总铬的去除率达到99% 以上,且能耗与极板消耗均为最低,电絮凝法更适合于重金属废水的深度处理。 |
| 英文摘要: |
| Objective To study the influencing factors on heavy metals removal by electrocoagulation treatment. Methods Wastewater was treated with electrocoagulation by using iron plate as electrode. Several affecting factors, such as retention time, initial pH, current density, conductivity and initial concentration were investigated. Results The removal rate was obviously improved with the increase of retention time, initial pH and current density, however, the improvement of treatment effect did not continue after reaching a certain level. Conductivity did not influence the treatment effect, but low conductivity increased energy consumption. To achieve the desired treatment effect, the higher the initial concentration of wastewater , the higher the consumption of energy and plates. Conclusion Electrocoagulation was more suitable for advanced treatment of wastewater containing heavy metals. The removal rates of total copper, total nickel, total lead, total zinc, total cadmium and total chromium were above 99% under the conditions of initial pH of 8. 5 ~ 9. 0, conductivity of 1500 ~ 2000 μs / cm, retention time of 3 ~ 4 min, current density of 13. 2 ~ 19. 8 A / m2and initial concentration of 0 ~ 20 mg / L. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
