The ELODE+NVD combination system is an innovative solution that enables high-efficiency sludge drying with minimal energy consumption. This system overcomes the limitations of conventional drying equipment and provides a high-performance, environmentally friendly alternative for sludge treatment and management.
Achieves 90% dry solids content for most WWTP sludge, setting an unmatched industry standard
Lower carbon footprint while retaining the calorific value of sludge.
No E. coli – Eliminates harmful bacteria.
No Flying Dust – Ensures a cleaner and safer working environment.
No Secondary Pollution – No harmful byproducts, maintaining environmental integrity.
No Additives Required– Chemical-free process, reducing operational costs and risks.
Typically, primary dewatered sludge (or Cake) forms strong flocs due to polymers, viscosity, and various organic media. Physical dewatering is challenging for this type of sludge as it retains a high moisture content within the cells and inter-polar water, and the only viable drying method has been thermal dryers.
However, thermal dryers require significant energy and produce large amounts of dust and chemical gases during the drying process. Dust can accumulate in dust collectors, leading to additional maintenance and increased costs due to required washing systems to remove dust buildup. Additionally, thermal-dried Cake often loses its calorific value, making it unsuitable as a recyclable fuel, and it typically has to be incinerated, which involves further costs.
Conventional sludge dryers (e.g., solar dryers, low-temperature dryers, rotary kilns, drum dryers, fluid bed dryers, and film dryers) also face several operational challenges
The ELODE+NVD system provides an excellent drying performance while addressing these issues
On average, it requires over 0.9 kWh of energy
to remove one liter of water.
Sticky organic residues increase maintenance
costs and decrease efficiency.
Dust and gases generated during drying necessitate additional equipment, such as dust collectors and washing systems.
High operating costs (OPEX), initial capital costs (CAPEX), and extensive installation space are required.
Chemical gases can cause equipment corrosion and scaling, reducing equipment lifespan.
The ELODE+NVD system addresses these challenges while delivering superior performance
It reduces sludge with 20% moisture content to 90% dry solids, requiring less than 0.45 kWh of energy per liter of water removed.
Installation space is reduced by a third compared to traditional dryers, resulting in lower installation costs.
The natural convection drying method minimizes dust emissions, and the final product is a flat, dust-free Cake.
The combination of ELODE's electro-osmosis dewatering technology and NVD’s natural drying method significantly reduces energy consumption compared to conventional thermal drying systems.
The ELODE+NVD system addresses these challenges while delivering superior performance
ELODE's single drum system completes dewatering within 1 minute and 30 seconds, performing cell breakdown, viscosity reduction, and bacterial elimination simultaneously.
This combination system requires minimal maintenance and offers long service life.
ELODE can be integrated with existing drying equipment to reduce dust and energy consumption while enhancing system efficiency, thereby providing an economical alternative in sludge management by reducing both CAPEX and OPEX.
ELODE's dewatering technology combines electro-osmosis, electro-penetration, and electro-phoresis
Water molecules, carrying (-) electrons, are separated from solid particles with (+) electrons. ELODE converts AC 3-phase current to DC 3-phase to create rapid, strong, and stable alternations of (+) and (-), separating water and solids.
Once solids and water are separated, the (+) and (-) poles quickly switch, penetrating cell water and breaking down inter-polar and cell-bound water. This releases free water, which is quickly removed.
High-frequency currents generate heat through rapid electron movement, known as Coulomb heating. This enhances the efficiency of dewatering without additional energy input.
The Cake discharged from ELODE retains a temperature between 40℃ and 80℃ due to Coulomb heating. NVD receives this Cake and, using natural airflow and an electronic drying mechanism, further dries it over approximately one hour to achieve a moisture content of 10% or lower.
The ELODE system can be combined with various drying equipment to optimize sludge treatment efficiency. Each combination has specific advantages
+ Rotary Kiln DryerUses high temperatures to rotate and quickly evaporate water from sludge.
+ Drum DryerDelivers stable drying at medium temperatures by rotating the drum and removing water.
+ Fluid Bed DryerForms a fluid bed of sludge for uniform water removal and high thermal efficiency.
+ Low Tem DryerProvides stable drying at low temperatures, minimizing energy consumption.
+ High Temp DryerQuickly evaporates moisture using high temperatures for rapid drying.
+ Film DryerSpreads sludge in a thin film to maximize surface area for fast drying.
+ Solar DryerUtilizes solar energy for an eco-friendly, cost-effective drying solution
The ELODE+NVD system is a next-generation solution for effective sludge reduction and resource recovery. By saving energy and protecting the environment, it offers a sustainable sludge management option. If you are looking for the optimal solution for sludge drying, the ELODE+NVD system is the ideal choice. For more information or inquiries, please feel free to contact us.
The Cake discharged from ELODE has a unique structure with numerous pinholes and a cracked surface resembling a tortoise shell due to electro-osmosis, penetration, and electrophoresis. The Cake’s temperature ranges from 40℃ to 80℃ due to Coulomb heating, which allows continuous evaporation of moisture. NVD’s natural ventilation drying system further dries the Cake, achieving a high-efficiency dry solids content of 90%.
By mixing the final Cake with sawdust or hay, then shaping it with a high-pressure pellet press, it can be transformed into a high-calorie renewable fuel with approximately 3,500 kcal per kilogram. This fuel can be used as an efficient and sustainable energy source.
RFQ
Contact
© 2025 BLUEWIN Co., LTD. All Rights Reserved.
