Removal and recovery of phosphorus in sewage water by superconducting high gradient magnetic separation with ferromagnetic adsorbent

铁磁吸附剂超导高梯度磁分离去除回收污水中的磷

• 批准号: 20560759
• 负责人: MIURA Osuke
• 金额: $ 2.83万
• 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: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560759/
• 关键词: 下水処理場; リン; 富栄養化防止; ゼロエミッション; 再資源化; 磁気分離; 下水二次排水; 磁性リン吸着剤; 磁気速度; ゼータポテンシャル; 超伝導マグネット; 吸着剤; 超高速浄化

Phosphorus in the treated wastewater could be removed absolutely (>90%) by high gradient magnetic separation system (HGMS) with 200 mg/L zirconium ferrite adsorbent for 15 minutes in adsorption time. According to Langmuir plot analysis, we found that this zirconium ferrite adsorbent had the capacity of adsorption of 12.8mg-P/g-ZrFe. We also confirmed that over 70% phosphorus adsorbed by 2000mg/L zirconium ferrite could be desorbed from it by alkali treatment for 15 minutes. After desorbing, zirconium ferrite adsorbent was restored by acid treatment to adsorb phosphorus repeatedly. Magnetic separation speed achieved 1m/sec which was necessary for practical use with an applied magnetic field of 2T and magnetic filter of 8% packing factor. These results suggest that HGMS using powdered zirconium ferrite adsorbent is suitable for a large-scale wastewater treatment at sewage plants, and the possibility of the recovery of phosphorus from the treated sewage water without secondary waste.

采用高梯度磁分离系统（HGMS），以200 mg/L铁酸锆为吸附剂，吸附时间为15 min，处理后废水中的磷可完全去除（>90%）。Langmuir曲线分析表明，该铁酸锆吸附剂对磷的吸附容量为12. 8 mg-P/g-ZrFe。2000 mg/L铁酸锆吸附的磷，经碱处理15 min，可脱附70%以上。铁酸锆吸附剂脱附后，经酸处理恢复吸附性能，反复吸附磷。在磁场强度为2 T，磁过滤器填充系数为8%的条件下，磁分离速度达到了1 m/s，这是实际应用所必需的。这些结果表明，使用粉末状铁酸锆吸附剂的HGMS适合于污水厂的大规模污水处理，并且可以从处理后的污水中回收磷而不会产生二次废物。

项目成果

Phosphorus removal and recovery from treated water of large sewage disposal plants with zirconium ferrite adsorbent by high gradient magnetic separation.

采用铁酸锆吸附剂高梯度磁分离对大型污水处理厂处理水进行除磷回收

• 发表时间: 2008
• 作者: Hiromitsu OHTA;Terunori AIKAWA;三浦大介
• 通讯作者: 三浦大介

Removal and recovery of phosphorus in wastewater by superconducting high gradient magnetic separation with ferromagnetic adsorbent

铁磁吸附剂超导高梯度磁分离去除回收废水中的磷

• 发表时间: 2010
• 期刊: Physica C : Superconductivity Volume 470, Issue 20
• 作者: T. Ishiwata;O. Miura;K. Hosomi;K. Shimizu;D. Ito;Y. Yoda
• 通讯作者: Y. Yoda

ジルコニウム・フェライト吸着剤と磁気分離による排水中のリンの浄化回収と再資源化

利用铁酸锆吸附剂和磁选净化、回收和循环利用废水中的磷

• 发表时间: 2010
• 作者: 三浦;細見;清水;斎藤
• 通讯作者: 斎藤

ジルコニウム・フェライト吸着剤と磁気分離による排水中のリンの浄化回収と再資源化III

铁酸锆吸附剂磁选净化废水中磷的回收与循环利用Ⅲ

• 发表时间: 2010
• 作者: 三浦;細見;清水;斎藤
• 通讯作者: 斎藤

Phosphate removal and recycle by magnetic separation with zirconium ferrite adsorbent

铁酸锆吸附剂磁选除磷及回收

• 发表时间: 2008
• 期刊: Environmental Science and Technology 2008(1)
• 作者: Disuke Ito;Kenji Nishimura;Osuke Miura
• 通讯作者: Osuke Miura