Development of new water purification system by magnetic separation with magnetic activated carbon

磁性活性炭磁分离新型净水系统的开发

• 批准号: 23560650
• 负责人: MIURA Osuke
• 金额: $ 3.41万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560650/
• 关键词: 磁気分離; 磁性活性炭; 磁性ゼオライト; 磁性吸着材

We have studied the possibility of advanced water purification by using a high gradient superconducting magnetic separation HGSMS with magnetic adsorbents. We have developed magnetic mesoporous activated carbon MMPC for humic acid and other organic matters, oxidized magnetic activated carbon OxMAC for ammonia nitrogen, and magnetic zeolite MZL for ammonia nitrogen. By means of expanding micro-pores by heat treatment, the humic acid was able to be efficiently absorbed by MMPC. About 80 % of ammonia nitrogen can be adsorbed from 0.8 mg/L of ammonium chloride solution by Ox-MAC due to the acid functionalities fixed on the surface. Since the adsorbed humic acid and ammonia nitrogen were easily released by heating in atmosphere at low temperatures. MZL also effectively absorbed ammonia nitrogen by Na ion exchange. By using HGSMS, MMPC with a large magnetization can be collected from the solution by 99.95 % at a high speed flow velocity of 1 m/s and low magnetic fields under 2 T.

我们研究了利用高梯度超导磁分离HGSM和磁性吸附剂进行高级净水的可能性。我们开发了用于腐植酸和其他有机物的磁性介孔活性碳MMPC、用于氨氮的氧化磁性活性碳OxMAC和用于氨氮的磁性分子筛MZL。通过热膨胀微孔的方法，MMPC能够有效地吸附腐植酸。Ox-MAC表面固定了酸性官能团，可从0.8 mg/L的氯化铵溶液中吸附约80%的氨氮。由于吸附后的腐植酸和氨氮在大气中低温加热很容易释放出来。MZL还通过钠离子交换有效地吸附了氨氮。在高速流速为1m/S、低磁场低于2T的条件下，利用HGSM可从溶液中收集到99.95%的大磁化强度的MMPC。

项目成果

Mercury Removal From Solution by High Gradient Magnetic Separation With Functional Group Modified Magnetic Activated Carbon

• DOI: 10.1109/tasc.2013.2292315
• 发表时间: 2014-06
• 期刊: IEEE Transactions on Applied Superconductivity
• 影响因子: 1.8
• 作者: O. Miura;S. Tachibana

Water purification and resource recovery by high gradient magnetic separation with magnetic adsorbents

磁性吸附剂高梯度磁分离水净化和资源回收

• 作者: 長谷川拓哉;千歩修;福山智子;三浦大介
• 通讯作者: 三浦大介

排水・汚水処理技術集成 vol.2

废水、污水处理技术集锦第2卷

• 发表时间: 2013
• 作者: 大城 優;小林高臣;内田修司
• 通讯作者: 内田修司

Removal of Humic Substances and Ammonia Nitrogen in Water by Superconducting Magnetic Separation and Magnetic Activated Carbon

超导磁分离和磁性活性炭去除水中腐殖质和氨氮

• 发表时间: 2014
• 期刊: Applied Superconductivity, IEEE
• 作者: Ogata;T,Miura;O
• 通讯作者: O

磁性活性炭を用いた溶液中からの水銀磁気分離除去

使用磁性活性炭从溶液中磁分离和去除汞

• 发表时间: 2012
• 作者: 立花翔平;三浦大介
• 通讯作者: 三浦大介