Electro Osmosis:
Definition & Overview
What is electro osmosis? What is the electro-osmosis process? Why does electro-osmosis occur? What is electro-osmosis dewatering? How does electro-osmosis dewatering work? What is the electro-osmosis dehydrator? What are the advantages and disadvantages of electro-osmosis dewatering? Dewater sludge with ELODE
What is electro-osmosis?
Electro-osmosis is the movement of liquid through a porous material in response to an electric field.
What is the electro-osmosis process?
The electro-osmosis process works as follows:
Liquid is placed between two electrodes, divided by a porous material
An electric current is applied via the two electrodes
The liquid moves through the porous material towards one electrode
Why does electro-osmosis occur?
Applying an electric field to fluid between two electrode layers induces an electrostatic Coulomb force, making the fluid flow.
What is electro-osmosis dewatering?
Electro-osmosis dewatering is a method for extracting water from sludge cake using an electric field, rather than mechanical force or evaporation by heat.
Electro-osmosis dewatering applies an electric current to drive a positively-charged liquid like water through a semisolid colloid like sludge cake, towards a negatively-charged cathode.
How does electro-osmosis dewatering work?
Electro-osmosis dewatering works by:
Placing sludge cake on a porous belt between an anode and a cathode
Applying an electric field
Driving water out of the sludge cake through the belt towards the cathode
What is the electro-osmosis dehydrator?
The Electro-Osmosis Dehydrator (ELODE) is a non-mechanical sludge dewatering machine that leverages electrical polarity differences between solids and liquids to pull water out of sludge cake efficiently.
As its name suggests, ELODE dehydrates sludge cake using electro osmosis.
What are the advantages and disadvantages of electro-osmosis dewatering?
Electro-osmosis dewatering has many advantages over thermal drying.
Most notably, it is energy efficient.
By using only electricity to remove water from sludge cake, electro-osmosis dewatering consumes much less energy overall than thermal drying and helps operators save on operating costs.
However, electro-osmosis dewatering does not dry sludge cake as much as thermal dryers often do.
Dewater sludge with ELODE
Our ELODE non-thermal sludge dryer further dewaters sludge cakes produced by mechanical sludge dewatering equipment. Compared to thermal dryers, ELODE is more cost-effective, energy-efficient, and has a small footprint.
Save on operating costs by reducing your sludge cake by 50% or more in just 3 minutes with ELODE.