MCDI technology overview

Membrane Capacitive Deionisation MCDI is a novel electrochemical desalination technology using porous carbon electrodes to capture dissolved salts. The process divided in adsorption and discharge phases to regenerate electrodes.

Key Advantages of MCDI

• Energy Efficiency: Operates at low voltage (typically < 1.5 V), reducing energy demand compared to pressure-driven systems.

• Selective Ion Removal: Capable of targeting specific ions (e.g., hardness, nitrate, heavy metals).

• Lower Fouling Tendency: Operates at low pressure, reducing mechanical stress and membrane fouling compared to RO systems.

• High Water Recovery: Improved recovery rates in low-to-moderate salinity water.

• Modular & Scalable Design: Stackable modules allow flexible system sizing for industrial integration.

• Environmentally Sustainable: Reduced chemical usage and minimized waste generation.

Integrated Water Solutions

MCDI is the Core Technology of DION+ systems in our integrated water treatment architecture. It operates in synergy with smart pre-treatment systems—including Ultrafiltration (UF), Membrane Bioreactors (MBR), and advanced filtration— to ensure optimal feed water conditioning prior to selective ion removal and desalination (CCRO or SWRO). Downstream, post-treatment polishing and stabilization modules refine water quality to meet precise industrial or municipal specifications. This hybrid integration strategy enables DION+ to optimize energy consumption, reduce total lifecycle cost, and tailor system configurations to the specific chemical and hydraulic profiles of each application.

Application Areas of MCDI Technology

Drinking Water Purification

Ideal for municipalities, rural systems, and point-of-use industrial supply

• Removal of hardness (Ca²⁺, Mg²⁺)

• Nitrate and fluoride reduction

• Decentralized and modular drinking water systems

• Energy-efficient alternative for low TDS water

Industrial Wastewater Treatment & Reuse

Supports circular water management strategies and ESG compliance

• Selective ion removal after biological treatment

• Industrial process water recycling

• Cooling tower blowdown treatment

• Reduction of discharge salinity

Agricultural Water Management

Enables sustainable agriculture in water-stressed regions.

• Salinity control for irrigation water

• Selective removal of sodium and harmful ions

• Nutrient management and recovery potential

• Prevention of soil salinization

Desalination of Saline Water

Suitable for inland desalination and industrial brackish sources.

• Efficient treatment of low to medium salinity water

• Lower operating pressure than RO

• Reduced scaling and fouling risk

• Hybrid integration with CCRO for high salinity cases

Highlight Projects

Provide a short summary of your recent projects, highlighting the most important things.

Smacumed

Smart irrigation cube for sustainable agriculture in the Mediterranean region

SophiA

Sustainable off-grid energy supplies and clean drinking water for pharmacies and hospitals in Africa