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Session 5.1 Potential use of Cassava Wastes to Produce Energy: Outcomes of a Feasibility Study in Ghana by Serpagli, IFAD

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IFAD International Fund for Agricultural Development
IFAD International Fund for Agricultural Development
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The IFAD Regional Cassava Processing and Marketing Initiative  THE USE OF CASSAVA WASTES TO PRODUCE BIO-ENERGY: OUTCOMES OF A FEASIBILITY STUDY IMPLEMENTED IN GHANA 18-19 October 2010 IFAD - RTIMP, Ghana What has been done and what can be done
[object Object]
[object Object],[object Object],THE USE OF CASSAVA WASTES TO PRODUCE ENERGY: OUTCOMES OF A FEASIBILITY STUDY IMPLEMENTED IN GHANA
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],HOW TO TURN A COST INTO A PROFIT
CASSAVA PEELS AND WASTEWATERS POLLUTE THE ENVIRONMENT
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],AVAILABLE TECHNOLOGIES: PRODUCTION OF BIO-ENERGY FROM WASTES Bio-methanation (biogas) Wastewaters ↓ Methane ↓ Heat (mainly)
[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],BIOMASS SUITABLE FOR GASIFICATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
GASIFICATION: BLEND OF DRIED CASSAVA AND WOOD WASTES/OTHER BIOMASSES (2) Blend of wood shaving (70%) +saw dust (30%) (1) Dried cassava peels/barks Gasifier uses a blend of + (2) mixed in a 1:1 proportion
SCHEME OF A GASIFIER/REACTOR Gasifier: a reactor where physical and chemical processes take place
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MAIN FEATURES OF THE GASIFIER CONSIDERED IN THE STUDY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BIO-METHANATION/BIOGAS PLANT: FLOW DIAGRAM
 
[object Object],[object Object]
BIOGAS: ANAEROBIC FERMENTATION/BIO-DIGESTION PROCESS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BIO-METHANATION/BIOGAS PLANT: FLOW DIAGRAM
[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],GASIFICATION: ENERGY OUTPUT AND ITS PLANNED USE
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],BIOGAS PLANT: ESTIMATED ENERGY PRODUCTION
[object Object],[object Object],[object Object],[object Object],HEAT REQUIREMENT TO DRY BIOMASS AND PRODUCTS IN A DAY OF 22 WORKING HOURS
GASIFIER: PRODUCTION AND USE OF ENERGY
GASIFICATION AND BIOGAS MARKETABLE PRODUCTION: HEAT BALANCE AND EQUIVALENCE PER DAY OF 22 WORKING HOURS
ECONOMIC AND FINANCIAL ANALYSES: KEY ASSUMPTIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
THE CASH FLOW ANALYSIS: THE GASIFIER
THE CASH FLOW ANALYSIS The biogas plant The gasifier plant in the Asueyi municipality
ENVIRONMENTAL ASPECTS Water resulting from bio-gas plant Air resulting from gasifier Wood is saved and forests are less at risk Used in re-circulation mode with zero discharge. Occasional ph adjustment and simple treatment may be needed. Gasifier releases negligible amounts of gases into the atmosphere. Combustion is much cleaner as compared to the one for liquid fuels. Heat produced by the gasifier replace heat generated by firewood
ENVIRONMENTAL ASPECTS
[object Object]

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Session 5.1 Potential use of Cassava Wastes to Produce Energy: Outcomes of a Feasibility Study in Ghana by Serpagli, IFAD

  • 1.  
  • 2. The IFAD Regional Cassava Processing and Marketing Initiative  THE USE OF CASSAVA WASTES TO PRODUCE BIO-ENERGY: OUTCOMES OF A FEASIBILITY STUDY IMPLEMENTED IN GHANA 18-19 October 2010 IFAD - RTIMP, Ghana What has been done and what can be done
  • 3.
  • 4.
  • 5.
  • 6. CASSAVA PEELS AND WASTEWATERS POLLUTE THE ENVIRONMENT
  • 7.
  • 8.
  • 9.
  • 10. GASIFICATION: BLEND OF DRIED CASSAVA AND WOOD WASTES/OTHER BIOMASSES (2) Blend of wood shaving (70%) +saw dust (30%) (1) Dried cassava peels/barks Gasifier uses a blend of + (2) mixed in a 1:1 proportion
  • 11. SCHEME OF A GASIFIER/REACTOR Gasifier: a reactor where physical and chemical processes take place
  • 12.
  • 14.  
  • 15.
  • 16.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22. GASIFIER: PRODUCTION AND USE OF ENERGY
  • 23. GASIFICATION AND BIOGAS MARKETABLE PRODUCTION: HEAT BALANCE AND EQUIVALENCE PER DAY OF 22 WORKING HOURS
  • 24.
  • 25. THE CASH FLOW ANALYSIS: THE GASIFIER
  • 26. THE CASH FLOW ANALYSIS The biogas plant The gasifier plant in the Asueyi municipality
  • 27. ENVIRONMENTAL ASPECTS Water resulting from bio-gas plant Air resulting from gasifier Wood is saved and forests are less at risk Used in re-circulation mode with zero discharge. Occasional ph adjustment and simple treatment may be needed. Gasifier releases negligible amounts of gases into the atmosphere. Combustion is much cleaner as compared to the one for liquid fuels. Heat produced by the gasifier replace heat generated by firewood
  • 29.