The ELODE system utilizes an advanced dewatering process that combines electro-osmosis, electro-infiltration, and electrophoresis to effectively remove moisture from sludge that is difficult to dewater through conventional physical or mechanical methods alone.
Electro-osmosis uses an applied electric field to induce the movement of moisture through the sludge. Under the electric field, positively and negatively charged ions and particles within the sludge move toward their respective electrodes. This electrokinetic movement disrupts the forces that retain moisture within the sludge structure and promotes the separation and migration of free water, bound water, and intracellular water.
At the same time, the electrical energy generates heat within the sludge, which contributes to the evaporation of the separated moisture. Through the combined effects of electrokinetic water separation and electrically generated heat, the ELODE system can reduce the sludge moisture content from approximately 80% to 60% within about 1 minute and 30 seconds.
60%DS guarantee Electro Osmosis Dehydrator main drum
60%DS guarantee Electro Osmosis Dehydrator main drum
60%DS guarantee Electro Osmosis Dehydrator main drum
60%
Reducing the moisture content from
90%
Sludge Drying
02
NVD Natural Ventilation Drying Principle
The NVD cannot operate independently. it must be applied following the ELODE stage.
The dewatered sludge cake from the ELODE stage continues to evaporate moisture naturally, reaching temperatures of approximately 40℃ to 80℃, depending on its organic content and conductivity.
This sludge cake, with its unique flat type and disrupted cell structure, forms numerous air gaps.
The NVD directly receives this cake and gently passes external air through a specially designed orifice line, allowing natural ventilation to remove moisture without producing flying dust, resulting in a high-calorific value cake.
Through this NVD process, the sludge’s moisture content is reduced to as low as 10%, minimizing energy consumption through natural drying.
The NVD is an advanced drying system designed to retain the internal heat of organic sludge while continuously expelling moisture through air gaps, making it highly effective at removing moisture.
03
Glue Zone Treatment
The most challenging part of sludge treatment is reducing the moisture content from 80% to 60%, known as the Glue Zone. In this phase, the sludge becomes sticky and is challenging to process using conventional dewatering methods.
The ELODE system is specifically designed to efficiently pass through the Glue Zone, utilizing electro-osmosis and electrophoresis to rapidly dewater sludge to below 60% moisture content.
Integration of Electro-Osmosis, Electro-Infiltration, and Electrophoresis
The ELODE system utilizes the combined electrical effects of electro-osmosis, electro-infiltration, and electrophoresis to promote the movement and separation of moisture within sludge that is difficult to remove through conventional mechanical dewatering alone.
Electro-osmosis is the primary mechanism that drives water present between sludge particles and within microscopic pores toward the electrodes under an applied electric field. Electro-infiltration facilitates the discharge of the mobilized water through fine drainage pathways within the sludge layer, thereby improving overall drainage performance.
Electrophoresis causes electrically charged sludge particles and ions to move or rearrange within the electric field. This changes the bonding structure between particles and contributes to the formation of pathways through which separated water can be discharged.
Through these combined electrical actions, moisture within the sludge is rapidly mobilized, separated, and discharged. As a result, ELODE can effectively reduce sludge moisture content and volume with significantly lower energy consumption compared with conventional thermal drying methods.
Close-up view of the dewatering process, showing machinery in operation, reducing moisture content in sludge
02
3-Phase Wave-Controlled High-Frequency DC Power Supply
AC is an alternating current in which the direction and magnitude of the current change periodically, while DC is a direct current that flows continuously in one direction.
ELODE converts commercial three-phase AC power into stable DC power through phase control and rectification. While AC repeatedly changes direction, DC creates a consistent, unidirectional electric field, making it more effective for continuously driving ions, charged particles, and moisture within the sludge in a specific direction.
This process promotes the movement and separation of interstitial water, bound water, and intracellular water that are difficult to remove through conventional mechanical dewatering. The separated moisture is converted into free water and discharged. Through the combined effects of electro-osmosis, electrophoresis, and electrical infiltration, ELODE achieves high dewatering efficiency within approximately 1 minute and 30 seconds.
In other words, ELODE does not use electricity merely as a heat source. It is a high-efficiency electro-physical dewatering technology that uses a stable DC electric field to induce and control moisture movement within sludge.
Close-up view of the dewatering process, showing machinery in operation, reducing moisture content in sludge
03
Automated Sludge Distribution System (SFD) and Optimized Sludge Feeding System
The ELODE system is equipped with an Automated Sludge Distribution (SFD) that optimizes the thickness, width, and belt speed of the sludge, adjusting automatically to the sludge’s condition.
This allows the system to achieve the most efficient electro-osmosis and electro-permeation based on sludge characteristics, enhancing dewatering rates and ensuring uniform treatment results.
04
Coulomb Heating Method
During electro-permeation and electrophoresis, rapid exchange between positive (+) and negative (-) electrons generates heat naturally, referred to as the Coulomb Heating effect.
Due to Coulomb Heating, the discharged cake from the ELODE process naturally heats up to 40℃ to 80℃, depending on its organic content and conductivity.
This self-heating effect contributes to evaporating internal moisture without additional heat input, further enhancing the drying efficiency.
05
Low Energy Consumption Assurance
The ELODE Combination System is designed for exceptional energy efficiency, consuming only 0.25–0.35 kWh of electricity to evaporate one liter of water.
Compared with conventional thermal drying methods, it significantly reduces both energy consumption and operating costs.
It also lowers the energy load of downstream drying processes while reducing sludge transportation and disposal costs.
With its low power consumption and reduced CO₂ emissions, ELODE provides an environmentally friendly solution for sludge treatment.
We hope this summary will help you understand the principles and technical characteristics of the equipment. If you need further explanation, please feel free to contact me!
