Self-powered closed-loop system for efficient electrochemical ammonia recovery from nitrate with external crystallization

Key Points

• Efficient electrochemical recovery of ammonia was achieved with a self-powered closed-loop system.
• The system effectively utilizes nitrate, achieving significant ammonia production rates.
• Assessment using a closed-loop electrochemical system highlights its potential in resource recovery applications.
• This approach may enable more sustainable ammonia production, but scalability needs evaluation.