期刊论文

中文

过程工程学报

1009-606X

2018

18

3

646-651

10.12034/j.issn.1009-606X.217321

21376101:国家自然科学基金 17A028:湖南省教育厅科学研究项目 16A029:湖南省教育厅科学研究项目 :湖南省重点学科建设项目(十二五) 2015KJ23:湖南省高等学校科技创新团队支持计划

本校为第一机构

以九水硝酸铁[Fe(NO_3)_3·9H_2O]和柱状5A分子筛为原料采用湿法浸渍法制备Fe-5A催化剂,催化湿式H_2O_2氧化亚甲基蓝溶液,考察了间歇反应器中pH值和温度对亚甲基蓝转化率的影响及在连续固定床反应器中床层催化剂装填量、进料液流量、温度和亚甲基蓝入口浓度对亚甲基蓝降解性能的影响.结果表明,在间歇反应中,在亚甲基蓝浓度50 mg/L、温度70℃、pH为2、反应20 min的条件下,亚甲基蓝的转化率为95.9%.固定床反应中,随温度降低及进料液流量增加,亚甲基蓝转化率降低;随亚甲基蓝入口浓度增加,亚甲基蓝和化学需氧量(COD)的转化率变化幅度很小.在温度70℃及pH=2、进料液流量4 mL/min、 Fe-5A催化剂装填量...

Fe-5A catalyst was prepared by wet impregnation method using Fe(NO3)3•9H2O and column 5A zeolite as raw materials. Batch experiments using Fe-5A as catalysts were conducted to investigate the effects of pH and temperature on methylene blue conversion. In addition, the effects of catalysts filling amount, feed flow rate, temperature and inlet methylene blue concentration on the of methylene blue degradation performance using Fe-5A catalyst in a continuous fixed bed reactor were studied. The results showed that the conversion rate was 95.9% at 2...