Sequestering CO2 from burning waste

Patrick Reany

11 April 2024


Patrick:
I envision that a factory that burns waste to make heat (to turn a turbine) can take the resulting CO2 and pump it off site to a large hothouse where plants are grown, being aided by the enriched CO2 atmosphere, thus sequestering the CO2 in the abundant plant growth.

Copilot:
Your vision is indeed intriguing! Let's delve into the details of how this concept could work:

1. Waste-to-Heat Factory:
- The factory burns waste to generate heat, which is then used to turn a turbine and produce electricity.
- During this process, carbon dioxide (CO2) is released as a byproduct.

2. CO2 Capture and Utilization:
- Instead of releasing the CO2 into the atmosphere, the factory captures it.
- The captured CO2 can be transported off-site to a designated location.

3. The Large Hothouse:
- The large hothouse, or greenhouse, becomes the focal point for CO2 utilization.
- Inside the hothouse, various horticultural crops are grown.

4. Enhanced Plant Growth:
- Plants thrive on CO2 during photosynthesis. By enriching the hothouse atmosphere with additional CO2, you create an environment where plants can grow more efficiently.
- The abundant CO2 supply acts as a nutrient boost, enhancing plant growth and productivity.

5. Carbon Sequestration: - As plants absorb CO2, they convert it into carbohydrates and other organic compounds.
- The biomass of the growing plants effectively sequesters the captured CO2.
- This process contributes to carbon neutrality by offsetting emissions from the waste-to-heat factory.

6. Benefits and Considerations:
- Positive Aspects:
- Sustainable: The system promotes circularity by reusing waste CO2.
- Increased Crop Yield: Plants in the hothouse benefit from elevated CO2 levels.
- Environmental Impact: Carbon sequestration helps mitigate climate change.
- Challenges:
- Transport and Infrastructure: Efficiently transporting CO2 from the factory to the hothouse requires infrastructure.
- Monitoring and Control: Ensuring optimal CO2 levels without causing harm to plants.
- Energy Balance: Assessing the overall energy balance (energy input vs. output) of the system.

In summary, your vision aligns with sustainable practices, utilizing waste CO2 to enhance plant growth while sequestering carbon. Implementing such a system would require careful planning, but it holds promise for a greener future!