火炸药废水中污染物在电催化体系的转化特征研究
Study on conversion characteristics of pollutants in explosives wastewater by electrocatalytic system
Taking the explosives wastewater as the research object,the treatment efficiency of electrocatalytic technology is verified.Combined with the changes of spectral characteristics,molecular composition and biological toxicity of pollutants,the “pollution reduction and toxicity reduction” mechanism is revealed from the microscopic level.It is indicated that the removal rates of NB,COD and TN by Ti/TiO2-NTs/SnO2-Sb-Nd-Pt electrode reach 91.5%,84.1% and 41.1%,respectively.The energy consumption in removing 1 kg NB and 1 kg COD are 140.4 kWh and 58.2 kWh,respectively,which are lower than those by Ti/PbO2 electrode.Nitro-monocyclic aromatic hydrocarbons in wastewater are firstly reduced to aniline,then oxidized to azoxybenzene and 4-phenylazophenol,and ultimately,the rings are opened and the chains are broken until mineralization.Nitro-bicyclic aromatic hydrocarbons are generated into nitro-monocyclic aromatic hydrocarbons through breaking the chains,and then undergo a similar degradation process,which significantly reduces the toxicity of wastewater and improves the biodegradability of wastewater.The half-effect concentration (EC50) value of wastewater increases from 8.8% to 71.2%,and BOD5/COD ratio increases from 0.048 to 0.211.
电催化 / 生物毒性 / 转化规律 / 硝基芳烃 / 火炸药废水
electrocatalysis / biotoxicity / conversion rule / nitroaromatic hydrocarbons / explosives wastewater
| [1] |
凌定勋, 冯源, 汤春芳, |
| [2] |
蔡震峰, 姜鑫, 谷振华, |
| [3] |
麻晓越, 孙治荣. 电催化技术在有机化工废水处理中的研究进展[J]. 现代化工, 2018, 38(3):42-46. |
| [4] |
胡承志, 刘会娟, 曲久辉. 电化学水处理技术研究进展[J]. 环境工程学报, 2018, 12(3):677-696. |
| [5] |
|
| [6] |
赵晓梅, 谢正伟, 王昱豪, |
| [7] |
赵晓梅, 何平, 潘静, |
| [8] |
闫俊娟, 高璟, 刘有智, |
| [9] |
洪小帆, 王兵, 熊鹰. BDD电极电化学氧化处理高COD、高氨氮火炸药废水的最佳工艺参数[J]. 西南科技大学学报, 2023, 38(1):15-21,60. |
| [10] |
|
| [11] |
苗东洋, 沈方琳, 陈晖, |
| [12] |
|
| [13] |
刘淼, 冷粟, 陈嵩岳, |
| [14] |
王崇太, 华英杰, 韦吉崇, |
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
郑淑平, 李亚静, 孙力平. pH值对垃圾渗滤液中溶解有机物检测的影响及分析[J]. 环境工程, 2013, 31(4):123-125. |
| [20] |
|
| [21] |
晏彩霞, 杨雪, 文鑫梅, |
| [22] |
|
| [23] |
王碧. 石化综合废水及其特征污染物的三维荧光光谱特性研究[D]. 兰州: 兰州交通大学, 2018. |
| [24] |
王碧, 席宏波, 周岳溪, |
| [25] |
|
| [26] |
|
| [27] |
堵锡华, 王超. 硝基芳烃化合物急性毒性预测的理论研究[J]. 生态环境学报, 2017, 26(7):1152-1156. |
| [28] |
张德禄, 杜庆才, 彭亮, |
| [29] |
江野立, 王柏俊, 朱兆连, |
中国石油大学(北京)科学基金项目(2462020XKJS04)
中国石油大学(北京)科研基金项目(2462024SZBH002)
/
| 〈 |
|
〉 |