以热轧油泥制备的臭氧催化剂深度处理焦化废水生化尾水研究
X756%X757; 使用热轧油泥与ρ-氧化铝粉混合造粒后煅烧制备了一种臭氧催化剂.对制备出的催化剂结构组分进行表征,结果表明催化剂是以Fe3O4为活性组分的铝基催化剂.与实验室研发的两种铝基催化剂催化臭氧处理焦化废水生化尾水效果进行对比,结果表明COD去除率仅分别降低了 2.39％、5.30％,但是节省了添加活性组分所需药剂的费用.60 min时催化臭氧体系臭氧利用率相较单独臭氧体系提升了 16.41个百分点.对催化臭氧处理焦化废水生化尾水工艺参数进行优化,结果表明在催化反应时间为60 min、催化剂投加量为100 g/L、臭氧浓度为22.9 mg/L条件下,对焦化废水生化尾水的COD去除率...
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| Published in | 大连理工大学学报 Vol. 64; no. 5; pp. 470 - 479 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
鞍钢集团钢铁研究院,辽宁鞍山 114009%鞍钢集团工程技术发展有限公司,辽宁鞍山 114009
01.09.2024
大连理工大学环境学院,辽宁大连 116024%海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山 114009 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-8608 |
| DOI | 10.7511/dllgxb202405005 |
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| Abstract | X756%X757; 使用热轧油泥与ρ-氧化铝粉混合造粒后煅烧制备了一种臭氧催化剂.对制备出的催化剂结构组分进行表征,结果表明催化剂是以Fe3O4为活性组分的铝基催化剂.与实验室研发的两种铝基催化剂催化臭氧处理焦化废水生化尾水效果进行对比,结果表明COD去除率仅分别降低了 2.39％、5.30％,但是节省了添加活性组分所需药剂的费用.60 min时催化臭氧体系臭氧利用率相较单独臭氧体系提升了 16.41个百分点.对催化臭氧处理焦化废水生化尾水工艺参数进行优化,结果表明在催化反应时间为60 min、催化剂投加量为100 g/L、臭氧浓度为22.9 mg/L条件下,对焦化废水生化尾水的COD去除率为62.14％.电子顺磁共振(EPR)和自由基抑制实验表明,催化体系中起主要作用的活性物种是·OH和·O2-.GC-MS结果表明,催化体系对焦化废水生化尾水中含量较高的特征污染物具有较强的降解效果.6次重复利用实验和金属离子溶出实验结果表明,催化剂具有稳定的催化性能.研究为热轧油泥的处置提供了一种新思路,为催化臭氧深度处理焦化废水提供了一种可行且低成本的催化剂. |
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| AbstractList | X756%X757; 使用热轧油泥与ρ-氧化铝粉混合造粒后煅烧制备了一种臭氧催化剂.对制备出的催化剂结构组分进行表征,结果表明催化剂是以Fe3O4为活性组分的铝基催化剂.与实验室研发的两种铝基催化剂催化臭氧处理焦化废水生化尾水效果进行对比,结果表明COD去除率仅分别降低了 2.39％、5.30％,但是节省了添加活性组分所需药剂的费用.60 min时催化臭氧体系臭氧利用率相较单独臭氧体系提升了 16.41个百分点.对催化臭氧处理焦化废水生化尾水工艺参数进行优化,结果表明在催化反应时间为60 min、催化剂投加量为100 g/L、臭氧浓度为22.9 mg/L条件下,对焦化废水生化尾水的COD去除率为62.14％.电子顺磁共振(EPR)和自由基抑制实验表明,催化体系中起主要作用的活性物种是·OH和·O2-.GC-MS结果表明,催化体系对焦化废水生化尾水中含量较高的特征污染物具有较强的降解效果.6次重复利用实验和金属离子溶出实验结果表明,催化剂具有稳定的催化性能.研究为热轧油泥的处置提供了一种新思路,为催化臭氧深度处理焦化废水提供了一种可行且低成本的催化剂. |
| Abstract_FL | An ozone catalyst is prepared by mixing hot-rolled sludge with ρ-alumina powder for granulation and calcination.The structural components of the prepared catalyst are characterized and the results show that the catalyst is an aluminum-based catalyst with Fe3O4 as the active component.Compared with the catalytic ozonation treatment effects of biochemical tailwater of coking wastewater of two kinds of aluminum-based catalysts developed in the laboratory,the results show that the COD removal rates are only 2.39％and 5.30％lower respectively,but it saves the needed drug cost of adding active components.At 60 min,the ozone utilization rate of catalytic ozonation system increases by 16.41 percentage points compared with single ozonation system.The process parameters of catalytic ozonation treatment of biochemical tailwater of coking wastewater are optimized.The results show that under the conditions of catalytic reaction time of 60 min,catalyst dosage of 100 g/L and ozone concentration of 22.9 mg/L,the COD removal rate of biochemical tailwater of coking wastewater is 62.14％.Electron paramagnetic resonance(EPR)and free radiccal inhibition experiments prove that·OH and·O2-are the main active species in the catalytic system.The results of GC-MS show that the catalytic system has a strong degradation effect on the characteristic pollutants with high content in biochemical tailwater of coking wastewater.The results of 6 reuse experiments and metal ion dissolution experiments show that the catalyst has stable catalytic performance.The study provides a new idea for the disposal of hot-rolled sludge and a feasible and low-cost catalyst for catalytic ozonation advanced treatment of coking wastewater. |
| Author | 胡绍伟 李林 杨凤林 徐晓晨 刘素玲 王飞 陈思佳 |
| AuthorAffiliation | 大连理工大学环境学院,辽宁大连 116024%海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山 114009;鞍钢集团钢铁研究院,辽宁鞍山 114009%鞍钢集团工程技术发展有限公司,辽宁鞍山 114009 |
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| Author_FL | WANG Fei LIU Suling XU Xiaochen CHEN Sijia LI Lin YANG Fenglin HU Shaowei |
| Author_FL_xml | – sequence: 1 fullname: CHEN Sijia – sequence: 2 fullname: LIU Suling – sequence: 3 fullname: HU Shaowei – sequence: 4 fullname: WANG Fei – sequence: 5 fullname: LI Lin – sequence: 6 fullname: XU Xiaochen – sequence: 7 fullname: YANG Fenglin |
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| DocumentTitle_FL | Study of advanced treatment of biochemical tailwater of coking wastewater by ozone catalyst prepared from hot-rolled sludge |
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| Keywords | treating waste with waste 以废治废 coking wastewater advanced treatment 催化臭氧 焦化废水 catalytic ozonation hot-rolled sludge 热轧油泥 深度处理 |
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| Publisher | 鞍钢集团钢铁研究院,辽宁鞍山 114009%鞍钢集团工程技术发展有限公司,辽宁鞍山 114009 大连理工大学环境学院,辽宁大连 116024%海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山 114009 |
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