Anaerobic Bio-digester Plant Types
Compressed Natural Gas (CNG) Bio-digester Plant main Sections
- Bio-waste receiving and processing
- Bio-digester plant and Bio-digester Effluent Processing & Handling
- CNG processing & filling station
Combined Heat & Power (CHP) Bio-digester plant main Sections
- Bio-waste receiving and processing
- Bio-digester plant and Bio-digester Effluent Processing & Handling
- Power and heat (steam/hot water) generation
Tri-generation (electricity, heat & cooling) Bio-digester plant Sections
- Bio-waste receiving and processing
- Bio-digester plant and Bio-digester Effluent Processing & Handling
- Power and heat, steam/hot water/chiller cooling for cold storage
- Electricity for Tube Wells
Bio-digester Plant Production (Example)
- Organic feed stock mix (manure, poultry, fat, molasses, vegetable wastes)
- Mix bio-waste per day: 50 tons
- (manure 10 tons, vegetable waste 17 tons, oil/fats/molasses 6 tons, food/bakery waste 3 tons)
- Biogas Plant production:
- CNG generation: 4,135 kg/day (fuel for more than 1,000 vehicles)
- Or CHP Plant electricity generation: 9,568 kWh/day (power for 1,500 houses)
- CHP Plant steam generation: 0.76 ton steam/hour (at 150 psig, 366 F)
- In tri-generation steam generated is used for adsorption chiller cooling
- Solid & Liquid Fertilizer Production
- Organic fiber generation: 7,000 kg/day ( potting soil, board making)
- Liquid fertilizer generation: 77 tons/day (agricultural, reduces urea need)
- CDM CERs
- CDM CER generation: 55 CER/day (18,700 CER/year)
Plant Investment
Total capital investment approximately = $ 1.56 million (Rs 133,099,200)
Plant Revenue Streams
Revenue from CNG, CHP or Tri-generation
Revenue from organic fertilizer
Revenue from CER
Plant Operating Expense
Maintenance & Operation
Waste transportation & Handling
Administration & Accounts
Plant Earnings
Positive Return on Investment
