Identify opportunities
Given the common presence of waste streams in a plant, the initial step is to conduct a quick scan to identify opportunities. We recommend extending this scan to neighboring facilities to explore if ‘one person’s waste is another’s treasure.’
Following this, developing quick business cases can help prioritize opportunities and create a roadmap, considering existing turnaround schedules.
Feedstock preparation:
Feedstock Preparation:
The feedstock is ground into a fine size and mixed with water to create a slurry.
Anaerobic Digestion:
The slurry is introduced into a digester, a sealed tank where the anaerobic digestion (AD) process occurs, typically maintained at 35-40 degrees Celsius.
Biogas Production:
During anaerobic digestion, microorganisms break down the feedstock into biogas, a mixture of methane, carbon dioxide, and hydrogen sulfide.
Cogeneration Power Plant (CHP):
A CHP plant simultaneously generates electricity and heat, offering an efficient method for power generation at the point of use. By utilizing heat from electricity production and eliminating transmission losses, CHP ensures a secure and highly efficient energy supply.
Biogas offers a multitude of benefits across environmental, economic, and social
dimensions
1. Renewable Energy Source
2. Greenhouse Gas Reduction.
3. Waste Management
4. Energy Independence
5. Rural Development
6. Job Creation
7. Improved Air Quality
8. Resource Recovery
– Power Generation
– Heating
– Transportation Fuel
– Injection into Gas Grids
– Industrial Applications
– Agricultural Uses
– Exporting Energy
Biofertilizers from biogas plants using cow manure as digestate typically contain a variety of beneficial microorganisms. The exact composition can vary based on the biogas plant and digestion process, but commonly includes:
1. Nitrogen-fixing bacteria 10-30%:
2. Phosphorus-solubilizing bacteria 5-20%:
3. Potassium-solubilizing bacteria 5-15%:
4. Mycorrhizal fungi 5-20%:
5. Algal species 5-15%:
