Plasma air purification system: AI optimization, modular reuse, and mechanism research

Abstract

Pathogenic microbial aerosols (PMA), the typical environmental pollutants, are among the major threats to human health. Here, we developed a new plasma air purification system (PAPS) that simultaneously filters PMA and kills micro-organisms within. The large area needle corona discharge array was developed to fully cover the airflow channel. The proprietary modular design allows the easy cleaning and reuse of the PAPS components for long-term, low-cost operation. Artificial neural network was integrated with genetic algorithm to optimize the working parameters of PAPS. The numerical model was developed to study the purification mechanism of the PAPS and verify its key working parameters. Experiments designed under optimal working parameters proved that PAPS can effectively intercept and inactivate bacteria in PMAs.