Environmental Control and Optimization Strategies for Hydrogen Production Systems Using Chlorella

Chlorella, with its large biomass and ability to produce hydrogen directly or indirectly, has become a potential green hydrogen resource. However, its hydrogen production efficiency is significantly affected by environmental conditions and system design. This paper systematically analyzes the environmental factors affecting chlorella hydrogen production, elucidates the toxicity mechanisms of pollutants such as microplastics and heavy metals, and examines the stress response mechanisms of chlorella. By integrating strategies for constructing hydrogen production systems, the paper proposes solutions to enhance chlorella hydrogen production efficiency from both environmental regulation and technological optimization perspectives, providing theoretical support for the practical application of chlorella hydrogen production.