| 张志旭,罗琳,许振成.磁性污泥炭在四环素降解中的应用研究[J].农业环境科学学报,2017,36(4):777-782. |
| 磁性污泥炭在四环素降解中的应用研究 |
| Application research of degradation of tetracycline on sewage sludge derived magnetic carbon |
| 投稿时间：2016-11-17 |
| DOI：10.11654/jaes.2016-1450 |
| 中文关键词: 污泥 过硫酸盐 四环素 污泥炭 |
| 英文关键词: sewage sludge persulfate tetracycline sewage sludge carbon |
| 基金项目:环境保护部公益性科研专项：畜禽养殖污染负荷模拟估算技术与实证研究（201509038） |
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| 中文摘要: |
| 随着污泥数量和处理量的增加，人们的关注度越来越高，特别是对于环境友好和高附加值的再利用需求尤为突出。为此，以磁性多孔污泥炭（MPC）作为新型催化剂，对过硫酸盐存在下四环素的催化氧化过程进行了研究。结果表明，MPC在活化过硫酸盐和产生活性氧自由基（SO4-·和·OH）方面具有强大的催化活性，在初始pH为10时，降解270 min后，四环素和总有机碳的清除率达到89%和70.5%。不同起始pH下的降解动力学实验表明，四环素降解过程是pH依赖型的，碱性环境条件有利于降解的发生。 |
| 英文摘要: |
| With the increasing concern of the rapid production and disposal of sewage sludge, the need to develop more environmental-friendly and high value-added benign re-use of sewage is of particular importance.In this study, sewage sludge derived magnetic carbon was fabricated and used as a novel catalyst for catalytic oxidation of Tetracycline(TC) in the presence of persulfate(PS). The results showed that magnetic porous carbon(MPC) exhibited superior catalytic activity to activate persulfate and generate more powerful reactive oxygen species(ROS), such as sulfate radicals and hydroxyl radical. 89% and 70.5% of TC and TOC removal efficiency can be achieved after 270 min's degradation when initial pH was 10.0. The results obtained by degradation kinetics of TC in different initial pH indicated that the degradation was pH-dependent and easily happened in alkaline environement. |
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