铜强化铁碳微电解陶粒阴极对硝基苯废水的降解研究
Degradation of nitrobenzene wastewater by copper-loaded iron-carbon micro-electrolysis ceramic pellets
沈传龙 1任鹏 1来文艳 2葛宝鑫 3徐畅 3来文娟 2张大磊 1齐元峰4
作者信息
- 1. 青岛理工大学 环境与市政工程学院,青岛 266525
- 2. 苏州根基科技有限公司,苏州 215131
- 3. 中化环境设备工程(江苏)有限公司,宜兴 214214
- 4. 青岛理工大学 环境与市政工程学院,青岛 266525;中化环境设备工程(江苏)有限公司,宜兴 214214
- 折叠
摘要
采用电镀法,考察Cu2+浓度、电流密度、电镀时间对镀层形貌及电镀速率的影响,以SEM-EDS、XRD、CV等分析方法对所获得的铜电镀污泥碳进行表征;并进一步制备三元微电解陶粒,考察不同加铜方式对陶粒性能的影响.结果表明:在Cu2+浓度为0.15 mol/L、电流密度为12.5 mA/cm2时镀层均匀、致密;铜电镀掺杂制备的三元微电解陶粒对硝基苯废水的降解有更高的去除效果,在初始pH为3且废水中的硝基苯浓度为100 mg/L时,反应180 min即可达到90.61%的硝基苯去除率,且对硝基苯的降解符合伪一级动力学反应,反应速率常数可达到0.010 58 min-1.
Abstract
The effects of copper ion concentration,current density and plating time on the morphology of plated layer and the plating rate were investigated by plating method.Charac-terization of copper-loaded sludge carbon was conducted through SEM-EDS,XRD,CV test methods.The ternary micro-electrolysis ceramic pellets were further prepared to investigate the effect of different copper addition methods on the performance of ceramic pellets.The results showed that the plated layer was uniform and dense when the copper ion concentra-tion was 0.15 mol/L and the current density was 12.5 mA/cm2.The ternary micro-electrol-ysis ceramic pellets prepared by copper electroplating mixing has better degradation effect on nitrobenzene wastewater.When the solution pH is 3,the concentration of nitrobenzene is 100 mg/L and the reaction time is 180 min,the removal rate of nitrobenzene by the filler is 90.61%,and the degradation of nitrobenzene was in accordance with the pseudo primary ki-netic reaction,with a reaction rate constant of 0.010 58 min-1.
关键词
三元微电解陶粒/电镀掺杂/硝基苯废水/催化微电解Key words
ternary micro-electrolysis ceramic pellet/electroplating mixing/nitrobenzene wastewater/catalytic micro-electrolysis引用本文复制引用
基金项目
山东省重点研发计划(2020CXGC011204)
国家留学基金资助项目(202000810011)
出版年
2024
NETL
NSTL
万方数据