| 基于氮磷废水处理的沸石多孔吸附材料制备 |
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| 引用本文： | 林海,安梦宇,董颖博,李冰,贺银海.基于氮磷废水处理的沸石多孔吸附材料制备[J].同济大学学报(自然科学版),2019,47(1):0085-0091. |
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| 作者姓名： | 林海 安梦宇 董颖博 李冰 贺银海 |
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| 作者单位： | 北京科技大学 能源与环境工程学院，北京 100083;工业典型污染物资源化处理北京市重点实验室，北京 100083,北京科技大学 能源与环境工程学院，北京 100083,北京科技大学 能源与环境工程学院，北京 100083;工业典型污染物资源化处理北京市重点实验室，北京 100083,北京科技大学 能源与环境工程学院，北京 100083;工业典型污染物资源化处理北京市重点实验室，北京 100083,北京科技大学 能源与环境工程学院，北京 100083 |
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| 基金项目： | 国家水体污染与控制重大专项课题(2017ZX07101-004-002), National water pollution control and the major special subject(2017ZX07101-004-002) |
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| 摘 要： | 以改性沸石粉体为原料,采用添加黏结剂和造孔剂方法制备多孔颗粒沸石,重点研究了黏结剂种类、用量、造孔剂种类和用量,水添加量等对颗粒沸石散失率及吸附氨氮、磷酸盐性能的影响.结果表明:聚乙烯醇(PVA)黏结效果优于水泥和羧甲基纤维素钠(CMC),造孔剂碳酸氢钠相比较活性炭效果更佳.扫描电镜(SEM)结果发现添加碳酸氢钠后,颗粒沸石孔径增大,孔隙结构得到明显改善.在改性沸石粉体中添加1.2%PVA、4%碳酸氢钠、40%水制备所得颗粒型沸石散失率为0,且具有较高氮磷吸附性能,对水中氨氮、磷酸盐的去除率高达88.55%和83.11%.吸附动力学实验表明,多孔颗粒型沸石对氮磷的吸附更加符合拟二级动力学模型.
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| 关 键 词： | 沸石粉体 吸附 氮磷 多孔吸附材料 |
| 收稿时间： | 2018/3/20 0:00:00 |
| 修稿时间： | 2018/11/14 0:00:00 |
Preparation of Zeolite Porous Adsorption Material Based on Nitrogen and Phosphorus Wastewater Treatment |
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| LIN Hai,AN Mengyu,DONG Yingbo,LI Bing and HE Yinhai.Preparation of Zeolite Porous Adsorption Material Based on Nitrogen and Phosphorus Wastewater Treatment[J].Journal of Tongji University(Natural Science),2019,47(1):0085-0091. |
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| Authors: | LIN Hai AN Mengyu DONG Yingbo LI Bing and HE Yinhai |
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| Institution: | School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China,School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China,School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China,School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China and School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Porous zeolite particles were prepared by adding adhensive and pore former with modified zeolite powder as raw material. The type and addition of adhensive, type and addition of pore-forming agent, water addition on the loss efficiency of the zeolite particle and the effect of the adsorption of nitrogen and phosphorus were focused on. The results show that polyvinyl alcohol (PVA) was better than cement and sodium carboxymethyl cellulose. The effect of sodiumon bicarbonate was better than that of activated carbon, and the micro-morphology of the porous zeolite particles were observed by scanning electron microscopy (SEM) and the results showed that the pore diameter and pore structure of the zeolite particles were significantly improved after adding sodium bicarbonate. The loss efficiency of porous zeolite particles at 0 was made by adding in the modified zeolite powder 1.2% PVA, 4% sodium bicarbonate, 40% water. The results showed a high adsorption of nitrogen and phosphorus, and the removal efficiency of nitrogen and that of the phosphorus in wastewater were 88.55% and 83.11% respectively. The adsorption kinetic of nitrogen, phosphorus on porous zeolite particles was following the pseudo-second-order. |
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| Keywords: | zeolite powder adsorption nitrogen and phosphrous porous adsorption material |
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