Abstract
A newly developed numerical model is used to identify and evaluate optimum electrode configurations for electro-osmosis dewatering, as well as to evaluate approaches such as current intermittence and current reversal. Various electrode configurations, electrode spacings, and voltage gradients are studied numerically using 3D models with a cubic domain and vertically installed tube electrodes. The results indicate that, with more anodes installed, one can expect more water to drain out and a more uniform surface settlement, although a greater energy consumption is then required. A 2D square domain is used to study current intermittence and current reversal. Current intermittence allows more water to be drained out and has a higher energy efficiency compared to a continuous current, although it consumes more energy. Polarity reversal is also shown to be more efficient than a continuous current supply.
Original language | English |
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Pages (from-to) | 973-989 |
Number of pages | 17 |
Journal | Drying Technology |
Volume | 36 (2018) |
Issue number | 8 |
DOIs | |
Publication status | Published - 9 Nov 2017 |
Keywords
- Current intermittence and reversal
- electro-osmosis dewatering
- electrode configuration
- energy consumption
- numerical modeling