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CEDI system supports green hydrogen production
Pure Water Group and MAK Water deploy ultrapure water solution for the Good Earth project in Australia’s green hydrogen and ammonia sector.
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Pure Water Group has supplied a Continuous Electrodeionization (CEDI) system to MAK Water for integration into the Good Earth Green Hydrogen and Ammonia Project in New South Wales, Australia. The system provides ultrapure water required for electrolysis, a critical process in green hydrogen production.
Context of the cooperation
Pure Water Group, a provider of advanced water purification technologies, collaborated with MAK Water, an Australian water treatment specialist, to address the stringent water quality requirements of hydrogen electrolysis.
Electrolysers require consistently high-purity water to operate efficiently and to avoid scaling, membrane degradation, or reduced system lifespan. The Good Earth project, which combines renewable energy with hydrogen and ammonia production, required a robust and continuous water purification solution capable of meeting these technical constraints.
The cooperation brings together Pure Water Group’s expertise in electrodeionization and MAK Water’s experience in integrated water treatment systems.
Technical solution and system integration
The deployed solution consists of an EDI-based polishing system positioned downstream of ultrafiltration and reverse osmosis stages within MAK Water’s multi-barrier treatment process.
Continuous Electrodeionization (CEDI) combines ion exchange resins with electrically driven ion removal, enabling the production of ultrapure water without the need for chemical regeneration. This approach supports continuous operation while reducing chemical handling and associated maintenance requirements.
Within the system architecture:
- MAK Water is responsible for the overall treatment train, including pretreatment and membrane filtration stages.
- Pure Water Group provides the final polishing step through its CEDI system, ensuring the conductivity and purity levels required by electrolysers.
This configuration ensures stable feedwater quality, which is essential for maintaining electrolysis efficiency and minimizing operational disruptions.
Deployment in the Good Earth project
The system is being deployed at the Good Earth Green Hydrogen and Ammonia Project in New South Wales. The project integrates renewable energy sources with electrolysis and ammonia synthesis to produce low-carbon fertilisers and clean fuels.
The ultrapure water generated by the CEDI system feeds the electrolysers, enabling continuous hydrogen production. The hydrogen is subsequently converted into green ammonia, which can be used in agricultural applications.
Integration of the CEDI unit into the broader treatment infrastructure ensures compatibility with existing process stages and supports continuous plant operation.
Applications and operational impact
The cooperation targets applications in:
Deployment in the Good Earth project
The system is being deployed at the Good Earth Green Hydrogen and Ammonia Project in New South Wales. The project integrates renewable energy sources with electrolysis and ammonia synthesis to produce low-carbon fertilisers and clean fuels.
The ultrapure water generated by the CEDI system feeds the electrolysers, enabling continuous hydrogen production. The hydrogen is subsequently converted into green ammonia, which can be used in agricultural applications.
Integration of the CEDI unit into the broader treatment infrastructure ensures compatibility with existing process stages and supports continuous plant operation.
Applications and operational impact
The cooperation targets applications in:
- Green hydrogen production
- Ammonia synthesis
- Sustainable agriculture and fertiliser production
By ensuring a continuous and chemical-free supply of ultrapure water, the system contributes to:
- Stable electrolyser performance
- Reduced maintenance requirements
- Lower risk of process interruptions
In the absence of chemical regeneration, the CEDI approach also reduces operational complexity and supports safer plant operation.
Expected outcomes
The implementation supports the Good Earth project’s objective of reducing reliance on fossil-fuel-based fertilisers. By enabling efficient green hydrogen production, the system contributes to lowering CO₂ emissions in agricultural supply chains.
The cooperation between Pure Water Group and MAK Water demonstrates how integrated water treatment and electrochemical purification technologies can support the scalability and reliability of green hydrogen infrastructure.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.purewatergroup.com
Expected outcomes
The implementation supports the Good Earth project’s objective of reducing reliance on fossil-fuel-based fertilisers. By enabling efficient green hydrogen production, the system contributes to lowering CO₂ emissions in agricultural supply chains.
The cooperation between Pure Water Group and MAK Water demonstrates how integrated water treatment and electrochemical purification technologies can support the scalability and reliability of green hydrogen infrastructure.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.purewatergroup.com
