Abstract
The effect of a constant DC electric field in cross-flow membrane
filtration of industrial wastewaters was studied.The best results were
achieved when filtering a sample with highly charged particles or colloids.In
that case the limiting flow could be increased many-fold.The conductivity of
the samples studied was over 500 µ-S/cm.At such high conductivities,
electrochemical gas formation occurred on the electrodes.The flux enhancement
decreased significantly when the carbon fibre - carbon composite membrane
worked as an electrode and the gas was produced on the membrane.The problem
did not exist when a non-conductive ceramic membrane was used and an electric
field was applied across the membrane.However, the high conductivity caused
high-energy consumption, which is a problem with the electrofiltration of real
wastewater.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of World Filtration Congress 8 |
| Pages | 1197-1200 |
| Volume | 2 |
| Publication status | Published - 2000 |
| MoE publication type | A4 Article in a conference publication |
| Event | 8th, World Filtration Congress, WFC 8 - Brighton, United Kingdom Duration: 3 Apr 2000 → 7 Apr 2000 |
Conference
| Conference | 8th, World Filtration Congress, WFC 8 |
|---|---|
| Country/Territory | United Kingdom |
| City | Brighton |
| Period | 3/04/00 → 7/04/00 |
Keywords
- waste water
- filtration
- membranes
- membrane filtration
- electric field
- colloids
- electrodes
- electrofiltration
- electrophoresis
- fouling
- ceramic membranes
