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Removal of phosphate from wastewater by using open gradient superconducting magnetic separation as pretreatment for high gradient superconducting magnetic separation
Zhao, Y; Xi, BD; Li, YR; Wang, MF; Zhu, Z; Xia, XF; Zhang, LY; Wang, LJ; Luan, ZK;王美芬; Zhu ZA(朱自安)
2012
发表期刊SEPARATION AND PURIFICATION TECHNOLOGY
卷号86页码:255-261
摘要The removal of phosphate from wastewater using a combination of open gradient superconducting magnetic separation (OGMS) and high gradient superconducting magnetic separation (HGMS) was investigated. The magnetic seeding material used was Fe3O4, and a novel composite inorganic coagulant was added to combine the phosphate with the magnetic seed. The important parameters that influenced the removal efficiency of phosphate in OGMS or HGMS, slow mixing time, magnetic seeding dosage, coagulant dosage, hydraulic retention time, magnetic field strength and flow rate, were systematically investigated. The performance of the OGMS-HGMS process was evaluated by treating synthetic phosphate wastewater. The results showed that all of the investigated parameters except for slow mixing time had a significant effect on phosphate removal. The phosphate concentration was reduced from 0.50 to 0.01 mg/L under the following optimal reaction conditions: coagulant dosage, 50 mg/L; Fe3O4, 100 mg/L; magnet working current, 160 A; hydraulic retention time in OGMS, 0.5 min; and flow rate in HGMS, 2 L/min. Overall, the use of OGMS as a pretreatment for HGMS was shown to be a good method of increasing phosphate removal efficiency while simultaneously increasing the flow rate of HGMS. (C) 2011 Elsevier B.V. All rights reserved.
关键词Phosphate removal Wastewater treatment Open gradient superconducting magnetic separation (OGMS) High gradient superconducting magnetic separation (HGMS) OGMS-HGMS
学科领域Engineering
DOI10.1016/j.seppur.2011.11.014
收录类别SCI
WOS记录号WOS:000301757700031
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223911
专题实验物理中心
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Zhao, Y,Xi, BD,Li, YR,et al. Removal of phosphate from wastewater by using open gradient superconducting magnetic separation as pretreatment for high gradient superconducting magnetic separation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2012,86:255-261.
APA Zhao, Y.,Xi, BD.,Li, YR.,Wang, MF.,Zhu, Z.,...&朱自安.(2012).Removal of phosphate from wastewater by using open gradient superconducting magnetic separation as pretreatment for high gradient superconducting magnetic separation.SEPARATION AND PURIFICATION TECHNOLOGY,86,255-261.
MLA Zhao, Y,et al."Removal of phosphate from wastewater by using open gradient superconducting magnetic separation as pretreatment for high gradient superconducting magnetic separation".SEPARATION AND PURIFICATION TECHNOLOGY 86(2012):255-261.
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