Struvite crystallisation and recovery using a stainless steel structure as a seed material

被引：118

作者：

Le Correa, K. S.

Valsami-Jones, E.

Hobbs, P.

Jefferson, B.

Parsons, S. A. ^{[1
]}

机构：

[1] Cranfield Univ, Ctr Water Sci, Cranfield MK43 0AL, Beds, England

[2] Nat Hist Museum, Dept Mineral, London SW7 5BD, England

[3] Inst Grassland & Environm Res, Okehampton EX20 2SB, Devon, England

来源：

WATER RESEARCH | 2007年 / 41卷 / 11期

关键词：

seeded crystallisation; struvite; metallic accumulation system; P removal and recovery;

D O I：

10.1016/j.watres.2007.03.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A metallic system acting as a seed substrate has been designed and developed in order to assess its efficiency in recovering phosphorus as struvite. The device, consisting of two concentric stainless steel meshes, was immerged in the upper section of a pilot crystallisation reactor fed with synthetic liquors (MgCl2 center dot 6H(2)O, NH4H2PO4,) for 2 h. Apart from soluble PO4-P removals which remained in the range 79-80% with or without application of the metallic system, it was found that under the specific operating conditions tested the meshes were capable of accumulating struvite at a rate of 7.6 gm(-2) h(-1), hence reducing significantly the amount of fine particles remaining in solution from 302.2 to 12 mgL(-1) when compared to trials without mesh. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2449 / 2456

页数：8

共 25 条

[1] Pilot-scale study of phosphorus recovery through struvite crystallization - examining the process feasibility [J].