Removal of phosphate from wastewater by using open gradient superconducting magnetic separation as pretreatment for high gradient superconducting magnetic separation

	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)
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2012
卷号	86 页码:255-261
关键词	Phosphate removal Wastewater treatment Open gradient superconducting magnetic separation (OGMS) High gradient superconducting magnetic separation (HGMS) OGMS-HGMS
英文摘要	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.
学科主题	Engineering
收录类别	SCI
WOS记录号	WOS:000301757700031
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/223911]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	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.