Phosphonate removal from discharged circulating cooling water using iron-carbon micro-electrolysis

被引：23

作者：

Zhou, Zhen ^{[1
]}

Qiao, Weimin ^{[1
]}

Lin, Yangbo ^{[1
]}

Shen, Xuelian ^{[1
]}

Hu, Dalong ^{[1
]}

Zhang, Jianqiao ^{[1
]}

Jiang, Lu-Man ^{[1
]}

Wang, Luochun ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Coll Environm & Chem Engn, Shanghai 200090, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2014年 / 70卷 / 03期

关键词：

circulating cooling water; iron-carbon micro-electrolysis; phosphonate; response surface methodology; WASTE-WATER; DEGRADATION; MICROELECTROLYSIS; SYSTEM;

D O I：

10.2166/wst.2014.248

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phosphonate is a commonly used corrosion and scale inhibitor for a circulating cooling water (CCW) system. Its discharge could cause eutrophication of receiving waters. The iron-carbon (Fe/C) micro-electrolysis technology was used to degrade and remove phosphonate from discharged CCW. The influences of initial pH, Fe/C ratio (FCR) and temperature on phosphonate removal were investigated in a series of batch tests and optimized by response surface methodology. The quadratic model of phosphonate removal was obtained with satisfactory degrees of fitness. The optimum conditions with total phosphorus removal efficiency of 95% were obtained at pH 7.0, FCR of 1.25, and temperature of 45 degrees C. The phosphonate removal mechanisms were also studied. Phosphonate removal occurred predominantly via two consecutive reactive phases: the degradation of phosphonate complexes (Ca-phosphonate) and the precipitation of Fe/C micro-electrolysis products (PO43-, Ca2+ and Fe3+).

引用

页码：524 / 532

页数：9

共 23 条

[1] Systematic Structural Determinants of the Effects of Tetraphosphonates on Gypsum Crystallization
Akyol, Emel
Oner, Mualla
Barouda, Eleni
Demadis, Konstantinos D.
[J]. CRYSTAL GROWTH & DESIGN, 2009, 9 (12) : 5145 - 5154
[2] Steel Slag Filters to Upgrade Phosphorus Removal in Constructed Wetlands: Two Years of Field Experiments
Barca, Cristian
Troesch, Stephane
Meyer, Daniel
Drissen, Peter
Andres, Yves
Chazarenc, Florent
[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (01) : 549 - 556
[3] Pretreatment of wastewater from triazine manufacturing by coagulation, electrolysis, and internal microelectrolysis
Cheng, Hefa
Xu, Weipu
Liu, Junliang
Wang, Huanjun
He, Yanqing
Chen, Gang
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 146 (1-2) : 385 - 392
[4] Effects of structural differences on metallic corrosion inhibition by metal-polyphosphonate thin films
Demadis, Konstantinos D.
Mantzaridis, Chris
Lykoudis, Panagiotis
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (23) : 7795 - 7800
[5] Metal Tetraphosphonate "Wires" and Their Corrosion Inhibiting Passive Films
Demadis, Konstantinos D.
Barouda, Eleni
Raptis, Raphael G.
Zhao, Hong
[J]. INORGANIC CHEMISTRY, 2009, 48 (03) : 819 - 821
[6] Arsenate removal from water by zero-valent iron/activated carbon galvanic couples
Dou, Xiaomin
Li, Rui
Zhao, Bei
Liang, Wenyan
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) : 108 - 114
[7] Treatment of diazo dye C.I. Reactive Black 5 in aqueous solution by combined process of interior microelectrolysis and ozonation
Guo, Xiaoyan
Cai, Yaping
Wei, Zhongbo
Hou, Haifeng
Yang, Xi
Wang, Zunyao
[J]. WATER SCIENCE AND TECHNOLOGY, 2013, 67 (08) : 1880 - 1885
[8] Removal of EDTA-chelated copper from aqueous solution by interior microelectrolysis
Ju, Feng
Hu, Yongyou
[J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2011, 78 (01) : 33 - 41
[9] Kenny J. F., 2009, ESTIMATED USE WATER
[10] Eutrophication of Lake Waters in China: Cost, Causes, and Control
Le, C.
Zha, Y.
Li, Y.
Sun, D.
Lu, H.
Yin, B.
[J]. ENVIRONMENTAL MANAGEMENT, 2010, 45 (04) : 662 - 668

← 1 2 3 →