| 硅藻土-无定形碳-氧化铁三元复合体系降解三硝基甲苯的研究 |
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| 引用本文： | 孙仕勇,付琪智,宋绵新,谭道永,袁路,张杰,董发勤,陈廷芳.硅藻土-无定形碳-氧化铁三元复合体系降解三硝基甲苯的研究[J].岩石矿物学杂志,2015,34(6):901-906. |
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| 作者姓名： | 孙仕勇 付琪智 宋绵新 谭道永 袁路 张杰 董发勤 陈廷芳 |
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| 作者单位： | 固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;西南科技大学环境与资源学院地质与矿物工程系, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;西南科技大学环境与资源学院地质与矿物工程系, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;西南科技大学环境与资源学院地质与矿物工程系, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;西南科技大学环境与资源学院地质与矿物工程系, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010;固体废物处理与资源化省部共建教育部重点实验室, 西南科技大学, 四川 绵阳 621010 |
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| 基金项目： | 国家自然科学基金资助项目(41472310);四川省科技厅资助项目(2012JYZ002, 2013FZ0018);四川省大学生创新创业训练资助项目(201410619005) |
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| 摘 要： | 煤系共伴生非金属矿产开发及综合利用难度大。本文针对先锋褐煤共伴生硅藻土高有机质、高铁的特点,提出硅藻土原矿经提纯处理后,在N2作为保护气氛下,高温煅烧形成硅藻土-无定形碳-氧化铁三元复合材料,在类Fenton体系下,去除TNT污染物的开发利用技术路线。本文考察了硅藻土处理条件、反应时间、H2O2浓度、三元复合硅藻土投加量、pH值等因素对TNT降解效能的影响。研究表明三元复合硅藻土对TNT吸附降解的最佳工艺条件为:硅藻土用量为2 g/L,H2O2(30%)4 m L/L,pH值1,反应时间2.5 h。该工艺条件下,50 mg/L TNT去除率为98%。
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| 关 键 词： | 三硝基甲苯 硅藻土 类Fenton体系 煤系伴生矿 环境矿物学 |
| 收稿时间： | 2015/9/11 0:00:00 |
| 修稿时间： | 2015/10/19 0:00:00 |
The removal of TNT by ternary composite materials of diatomite-amorphous carbon-iron |
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| SUN Shi-yong,FU Qi-zhi,SONG Mian-xin,TAN Dao-yong,YUAN Lu,ZHANG Jie,DONG Fa-qin and CHEN Ting-fang.The removal of TNT by ternary composite materials of diatomite-amorphous carbon-iron[J].Acta Petrologica Et Mineralogica,2015,34(6):901-906. |
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| Authors: | SUN Shi-yong FU Qi-zhi SONG Mian-xin TAN Dao-yong YUAN Lu ZHANG Jie DONG Fa-qin and CHEN Ting-fang |
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| Institution: | Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Department of Geological and Mineral Engineering, School of Environment and Re_ source, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Department of Geological and Mineral Engineering, School of Environment and Re_ source, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Department of Geological and Mineral Engineering, School of Environment and Re_ source, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Department of Geological and Mineral Engineering, School of Environment and Re_ source, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China |
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| Abstract: | The comprehensive utilization of the coal-derived mineral resources is faced with technical difficulties. In the present work, the associated diatomite with high organic matter and high iron content in Xianfeng lignite was utilized for removal of TNT in Fenton system. The diatomite after purification was subjected to calcination at high temperature for the formation of ternary composite materials of diatomite-amorphous carbon-iron with N2 as protective atmosphere. The influence factors such as processing conditions of diatomite, reaction time, H2O2 concentration, amount of diatomite and pH values for removal efficiency of TNT were investigated. The optimized technological conditions for adsorption and degradation of 50 mg/L with removal rate of 98% are 2 g/L ternary composite diatomite, 4 mL/L(30%) H2O2, 1 pH and 2.5 h of reaction time. |
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| Keywords: | TNT diatomite Fenton system coal-derived mineral environmental mineralogy |
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