| 诱导结晶法同时去除铜、锌离子 |
| |
| 引用本文： | 闫萍, 宋英豪, 苏本生, 崔志峰. 诱导结晶法同时去除铜、锌离子[J]. 环境工程学报, 2017, 11(6): 3419-3424. doi: 10.12030/j.cjee.201603152 |
| |
| 作者姓名： | 闫萍 宋英豪 苏本生 崔志峰 |
| |
| 作者单位： | 1.北京化工大学化学工程学院, 北京 100029 |
| |
| 基金项目： | “十二五”国家科技支撑计划项目（2014BAC04B01-2） |
| |
| 摘 要： | 考察投药量、水力负荷、停留时间等因素，对诱导结晶反应器去除Cu2+、Zn2+效果的影响，确定最佳运行参数为：水力负荷40 m3·（m2·h）-1，结晶药剂投药量2：1，停留时间90 min。在最佳运行参数下，结晶反应器处理含铜20 mg·L-1，含锌10 mg·L-1、pH为5.5~6.0的混合重金属废水。反应器连续运行40 d，出水中铜离子和锌离子平均浓度分别为1.31 mg·L-1和4.57 mg·L-1，铜离子和锌离子平均去除率分别是93.4%和51.3%。诱晶载体粒径由0.568 mm长至0.617 mm，平均生长速度为0.001 23 mm·d-1。研究表明，该诱导结晶工艺可以用作同时去除废水中的Cu2+、Zn2+。
|
| 关 键 词： | 有机硅 重金属 诱导结晶 操作条件 |
| 收稿时间： | 2016-06-12 |
Simultaneous removal of Cu2+,Zn2+ by induced crystallization method |
| |
| YAN Ping, SONG Yinghao, SU Bensheng, CUI Zhifeng. Simultaneous removal of Cu2+,Zn2+ by induced crystallization method[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3419-3424. doi: 10.12030/j.cjee.201603152 |
| |
| Authors: | YAN Ping SONG Yinghao SU Bensheng CUI Zhifeng |
| |
| Affiliation: | 1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
| |
| Abstract: | The optimized conditions for copper and zinc removal efficiency were investigated by varying the dosage ratio, hydraulic load, and hydraulic retention time (HRT).The optimal operating conditions were determined:the best hydraulic loading rate was 40 m3·(m2·h)-1, the optimal dosage ratio was 2:1, and retention time was 90 min.Under optimal operating conditions, induced crystallization was employed to treat mixed-heavy-metal wastewater with 20 mg·L-1 copper and 10 mg·L-1 zinc at pH 5.5 to 6.0.After being continuously run for 40 days, the average effluent concentration of copper and zinc was 1.31 mg·L-1 and 4.57 mg·L-1, respectively.In addition, the average removal rate of copper and zinc was 93.4% and 51.3%, respectively.The seed crystal size increased from 0.568 mm to 0.617 mm with an average growth speed of 0.001 23 mm·d-1.Research showed that the induced crystallization process could be applied to simultaneously remove copper and zinc from wastewater. |
| |
| Keywords: | organosilicone heavy metal induced crystallization optimized conditions |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境工程学报》浏览原始摘要信息 |
|
点击此处可从《环境工程学报》下载全文 |
|
