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Transcript of 04
Clean Development Mechanism: An UpdateIGES-ICS workshop
Bangalore, 26-27 July 2005
CDM : Poultry litter based power generation
Project brief“Recovery of methane from poultry litter by
high rate biomethanation process and grid connected power generation”
PurposeTo collect, process and recover methane generated by poultry litter To generate electricity from methane and sell to state owned utility To produce organic manure from the biogas digester residue.To demonstrate environment friendly technology to avoid emissions and to enhance propagation of commercialization of such technologyTo contribute to the positive sustainable development of the region: socially, environmentally and economically
Project brief
Promoters : G. K. Bioenergy Pvt. Ltd. Capacity : 1.5 MW / 40 t of manure/dayLocation : Namakkal, Tamil NaduQuantum of litter collected : 200 tons/day
( from 12 farms housing 1.5 Mn birds)
Technology: High rate biomethanation(imported technology – indigenized)
Commissioned : Jan-Feb 2005
Current practice
Open dumping, removed every six monthsmethane is generated due to uncontrolled anaerobic digestion besides nitrous oxide. Unhygienic conditions for egg laying birdsSold as manure to Keralaafter six months
Proposed intervention
Collection of poultry litter every 3-4 dayswell-constructed and properly maintained sheds with a sloping floor for easy collection of litter in bins Adequate space or gap is provided between the sloping floor and the poultry shelter for facilitating litter collection. Anaerobic digestion of collected litter for methane generationPower generation from methaneManure production from the treated litter
Proposed intervention
Poultry WasteFeed
preparation Digester
Biogasstorage
Biogas desulphuration
Power generation
Electricity to grid
Dewatering of sludge by screw presses
Residue storage
tank
Aerobic composting Compost
Dewatering of sludge by screw presses
Residue storage
tank
Aerobic composting Compost
CDM and the project
Project qualifies under small scale CDM (Type III D : Methane Recovery and Type I D : Power supply to grid)Avoids Methane, Carbon-di-oxide and Nitrous oxide emissionsNitrous oxide emission reductions and CO2 reductions (for replacing chemical fertilizer) to be ascertained at later stage
Litter production in poultry farms
Open dumping for six months
Land application as manure
Gas released into atmosphere
CH4
Emissions due to transportation of
semi digested litter (manure)
NOx and CO2
CO2
CDM and the project
EmissionsTransportationCombustionManure handling
Poultry no. 1
Poultry no. 2
Poultry no. …
Poultry no. 12
Litter collection BiomethanationPlant
Manure usage in fields
ElectricityGenerator TNEB grid
Biogas composed ofmethane andcarbon dioxide
Manure
Project boundary
Fuel(Diesel/Petrol)
transportation
Emission reductions
Methane recovery part6,000/ annum
Power recovery part10,000 / annum
Methodology for other ER being explored by the promoter
Additionality arguments
Investment barrierProject cost : 4.6 Mn USD
Not a common practiceContinue to open dump
Project : First of its kindHRBM for poultry litter
Stakeholder consultation
Study through GRDIM, Coimbatore
Poultry farm ownersPrice for litter less attractive (Rs 550 Vs 700 / Ton)
Government officialsImprove hygienic conditions for birdsRid of bad odours and vector breedingEnhance egg laying capacityImproved power availability
Thank you