ISHS Acta Horticulturae 578: International Symposium on Design and Environmental Control of Tropical and Subtropical Greenhouses
DEVELOPMENT OF URBAN-TYPE PLANT FACTORY FOR PLANT PRODUCTION AND AIR PURIFICATION |
| Authors: | J.E. Son, J.S. Park, H. Lee |
| Keywords: | air purification, CO2 utilization, NO2 concentration, urban-type plant factory |
| Abstract:
The CO2 exchange between plant and human modules, absorption rate of NO2, and growth of lettuce were examined in an urban-type plant factory (UPF). The UPF can produce plants by using surplus CO2 generated in urban areas and purify the indoor air by exchanging gas between human and plant modules. With 150 lettuce plants, the CO2 concentrations of plant module were 600~700 μmol·mol-1 at average leaf weight of 130 g·plant-1 and 900~1100 μmol·mol-1 at 75 g·plant-1 for one and two persons' stay in the human module, respectively. When the air of 0.13, 0.30 and 0.45 μmol·mol-1 NO2 in a human module was circulated on/off 10/20 min between the human and plant modules, NO2 decrement in the chamber during 10 min was 0.040, 0.109, and 0.149 μmol·mol-1, respectively. The lettuces grown at 0.45 μmol·mol-1 NO2 during the experimental period showed no significant differences in growth factors such as leaf width, leaf length, leaf area and fresh weight, and in quality between the treated and control. The UPF was proved to accomplish the function of plant production and ambient purification at the same time. | |
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