The photovoltaic lamp device is used for active air purification in enclosed indoor spaces.

Abstract

The invention relates to a bio-algae lamp device for active air purification in enclosed indoor spaces. The device comprises a transparent biological tank containing culture medium and photosynthetic microalgae population; a forced aeration system with an air pump and air distribution head at the bottom of the tank to create an airflow from the bottom to the top of the tank and through the liquid medium column; an LED lighting system; a closed-loop recirculating filtration system to remove sediment and excess biomass to maintain the light transmittance of the culture medium; an exhaust system; and a controller. The controller is configured to coordinate airflow, light intensity, and recirculating filtration cycle based on environmental sensor signals. As a result, the device maintains a dynamic equilibrium between CO2 absorption, microalgae growth, and light transmittance, thereby improving indoor air quality in a stable and energy-efficient manner.

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