A one-dimensional model for flow-through porous electrodes is used to predict the effluent concentration as a function of matrix conductivity and electrode length for upstream and downstream placement of the counterelectrode and current collector relative to the fluid inlet to the working electrode. Two chemical systems are considered: (i) the removal of copper from sulfate solutions, and (ii) the removal of silver from thiosulfate solutions. For an infinite matrix conductivity, the lowest effluent concentration is achieved when the counterelectrode is placed upstream to the fluid inlet of the working electrode. When the matrix conductivity is small, the lowest effluent concentration is still achieved for upstream placement of the counterelectrode; however, the optimum placement of the current collector depends on the chemical system and the value of the matrix conductivity that can be achieved in practice.
|Number of pages||11|
|Journal||Journal of the Electrochemical Society|
|Publication status||Published - Jan 1978|
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Surfaces and Interfaces