Overview: A Hybrid Biotechnological System
KAI 3 is not just an air purifier; it is an advanced urban photobioreactor that integrates biological air scrubbing with industrial-grade engineering. It functions as a “liquid tree,” replicating the natural photosynthesis process of a forest but with 10 to 50 times greater efficiency per unit of area.
By combining selected microalgae cultures with AI-driven environmental control, KAI 3 solves the critical limitation of urban greening: the lack of physical space.
The Biological Engine: Microalgae Cultivation
At the heart of the KAI 3 unit is a 600-liter water column containing a high-density culture of specific microalgae strains. Unlike terrestrial plants, which have complex root and branch systems that consume energy, these single-celled organisms dedicate almost all their energy to photosynthesis and growth.
- Active Strains: We utilize Chlorella vulgaris and Spirulina platensis. These strains were selected for their extreme resilience to urban temperature fluctuations (5°C to 45°C) and high resistance to heavy metal toxicity.
- Carbon Fixation: Through photosynthesis, the algae actively bind atmospheric Carbon Dioxide ($CO_2$) and convert it into biomass and pure Oxygen ($O_2$). A single unit captures up to 60 kg of $CO_2$ per year.
- Oxygen Generation: The system releases oxygen back into the immediate environment, improving local air quality for pedestrians.
Multi-Stage Air Purification Process
KAI 3 employs a three-stage purification system to tackle the full spectrum of urban pollutants, from greenhouse gases to microscopic carcinogens.
Stage 1: Liquid Scrubber (PM Reduction)
Polluted city air is pumped into the tank and bubbled through the algae-rich water. The water column acts as a physical trap for Particulate Matter (PM2.5 and PM10). The sticky surface of the algae biomass adsorbs these fine dust particles, effectively removing them from the air stream.
Stage 2: Metabolic Conversion (NOx & VOCs)
The microalgae metabolize harmful gases found in vehicle exhaust. Nitrogen Oxides (NOx) and Volatile Organic Compounds (VOCs) are broken down biochemically and converted into harmless biomass and oxygen.
Stage 3: Photocatalytic Filters (Sterilization)
To ensure maximum safety, KAI 3 is equipped with advanced photocatalytic filters. These filters use UV light activation to degrade residual organic pollutants and neutralize airborne viruses, bacteria, and allergens before the air is released back into the street.
Hardware Specifications
KAI 3 is built to withstand the rigors of the urban environment while providing multifunctional utility to the public.
| Component | Specification |
| Tank Capacity | 600 Liters (Glass/Polycarbonate) |
| Frame Material | Recycled Steel / Toughened Glass |
| Dimensions | ~2.5m Height x 2m² Base Footprint |
| Energy Consumption | 500-600 kWh/year (Net Zero with Solar) |
| Lighting | LED Bio-lighting (Promotes growth & night safety) |
- All-Weather Operation: Integrated micro-heaters prevent freezing during winter, while the thermal mass of the water prevents overheating in summer, allowing operation year-round.
AI-Driven Smart Management
KAI 3 is an intelligent device managed by an onboard Artificial Intelligence system. It operates autonomously to maintain optimal conditions for algae growth, regardless of the weather.
- Real-Time Monitoring: Sensors continuously track pH levels, temperature, light intensity, and $CO_2$ concentration.
- Predictive Maintenance: The system alerts central command when biomass density reaches harvest levels (typically every 45-90 days), eliminating the need for manual checks.
- Adaptive Lighting: The LED system automatically adjusts light cycles to ensure photosynthesis continues even during overcast days or at night.
The Circular Economy: From Pollution to Product
KAI 3 is a zero-waste solution. The pollutants captured by the system are not just stored; they are transformed.
- Biomass Harvesting: Every 45–90 days, the thickened algae biomass is harvested from the tank.
- Bio-Fertilizer: This mineral-rich biomass is processed into high-grade liquid fertilizer for use in city parks and public gardens, returning nutrients to the soil.