Electrodialytic phosphorus recovery from sewage sludge ash under kinetic control

被引：18
|
作者：
Villen-Guzman, Maria [1 ]
Guedes, Paula [2 ]
Couto, Nazare [2 ]
Ottosen, Lisbeth M. [3 ]
Ribeiro, Alexandra B. [2 ]
Rodriguez-Maroto, Jose M. [1 ]
机构：
[1] Univ Malaga, Fac Sci, Dept Chem Engn, E-29071 Malaga, Spain
[2] Univ NOVA Lisboa, Fac Ciencias & Tecnol, CENSE, P-2829516 Caparica, Portugal
[3] Tech Univ Denmark, Dept Civil Engn, DK-2800 Lyngby, Denmark
来源：
ELECTROCHIMICA ACTA | 2018年 / 287卷
基金：
欧盟地平线“2020”;
关键词：
Electrodialytic; Sewage sludge ash; Phosphorus recovery; Model; Kinetic control; LOW-TEMPERATURE GASIFICATION; ELECTROKINETIC REMEDIATION; HEAVY-METALS; PART I; REMOVAL; CU; COPPER; SOILS; WATER; MEMBRANES;
D O I：
10.1016/j.electacta.2018.08.032
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A mathematical model for simulating the electrodialytic phosphorus recovery from sewage sludge ash containing heavy metal (Al, Fe, Zn, Cu, Cr, Cd and Ni) is presented. The complex chemical system proposed consists of 46 species including aqueous and solid species. The system setup is modelled as a four compartments: solid, liquid, anode and cathode. In addition to typical phenomena; such as: electromigration of ionic, simple and complex species from the liquid phase to anode and cathode through ionic membranes and diffusion transport; kinetically controlled processes due to non-equilibrium between solid phase and bulk liquid have been incorporated. The simulation results clarify the behavior of heavy metal when an electric current is applied which is essential for the scaling-up of the ED technology. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：49 / 59
页数：11
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