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初始浓度、外加电压和共基质浓度对生物阴极还原转化4-氯硝基苯的影响
发表时间：2014-12-31 浏览量：1855 下载量：709
| 全部作者： | 郭婉茜，郭爽，任南琪 |
| 作者单位： | 哈尔滨工业大学城市水资源与水环境国家重点实验室 |
| 摘 要： | 通过对4-氯硝基苯（4-chloronitrobenzene, 4-CNB）及其产物浓度及反应器电化学参数的测定，研究初始浓度、外加电压和葡萄糖作为共基质时，其浓度对生物电化学反应器（bioelectrochemical system, BES）还原转化4-CNB的影响。结果表明：外加电压和葡萄糖浓度均能影响4-CNB的还原转化速率，但是外加电压增大会增加电化学副反应，导致电流效率下降。当4-CNB初始浓度为15~75 mg/L时，对4-CNB在生物阴极还原转化效果影响较小，生物阴极对4-CNB具有较好的耐性。 |
| 关 键 词： | 环境工程学；生物阴极；4-氯硝基苯；初始浓度；外加电压；共基质浓度 |
| Title： | FU Dafang, JIANG Yong, CAO Xiaomin, PU Yunjie, DING Yi |
| Author： | GUO Wanqian, GUO Shuang, REN Nanqi |
| Organization： | State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology |
| Abstract： | The influence of the initial concentration, applied voltage and concentration of glucose as the co-substrate on the reduction of 4-chloronitrobenzene (4-CNB) in a bio-cathode of a bioelectrochemical system (BES) reactor was investigated by measuring the concentration of 4-CNB and the products as well as the electrochemical parameters. The results showed that the applied voltage and the concentration of the glucose could both affect the reduction rate of 4-CNB, nevertheless, the increase of the applied voltage would enhance the side reaction and lead to the decline of the current efficiency. When the initial concentration of 4-CNB was 15-75 mg/L, the reduction of the 4-CNB in the bio-cathode was less affected; the bio-cathode had a good tolerance of 4-CNB. |
| Key words： | environmental engineering; bio-cathode; 4-chloronitrobenzene; initial concentration; applied voltage; concentration of co-substrate |
| 发表期数： | 2014年12月第24期 |
| 引用格式： | 郭婉茜，郭爽，任南琪. 初始浓度、外加电压和共基质浓度对生物阴极还原转化4-氯硝基苯的影响[J]. 中国科技论文在线精品论文，2014，7（24）：2427-2433. |
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