methane production assessment by anaerobic codigestion from stem banana and cattle waste
TRANSCRIPT
SERGIO ENRIQUE ARANGO OSORNO,Chemical Eng. Candidate to Master Science of Eng. (Environmental).
JORGE MONTOYA Biologist MSc
GUSTAVO PEÑUELAChemical. PhD
Research Teams: INTEGRA & GDCONTecnological of Antioquia - University of Antioquia
Medellín - Colombia2010
METHANE PRODUCTION ASSESSMENT BY ANAEROBIC CODIGESTION FROM STEM BANANA AND
CATTLE WASTE IN ANTIOQUIA, COLOMBIA
15 th International Scientific Congress. CNIC 2010. CUBA 1th July.
ANAEROBIC PROCESS
RAW MATERIAL TYPE
SPECIES WEIGHT Kg manure/day L/kg.VS. %CH4
Pigs 50 4,5 - 6 340 - 550 65 - 70
Cattle 400 25 -40 90 - 310 65
Horses 450 12 - 16 200 - 300 65
Sheep 45 2,5 90 - 310 63
Poultry 1, 5 0,06 310 - 620 60
Vegetables Wholesale Central
13000 6 - 12 60
Codigestion Wholesale C. & Livestock C.
23000 212 - 268 60
• Colombia generates 1`231.200 ton/y of waste stem banana and 14'700 000 ton/y in the world[1].
• CH4 production is equal to 738 600 ton/year.
• [1] SOTO, M. Banano cultivo y comercialización. San José de Costa Rica: Editorial LIL, 1995. 648p.
CH4 ESTIMATION
STUDY AREASan Pedro de los MilagrosUrabá “Banana” Region
• ¿How much will be affected kinetic and methane production by temperature in cattle anaerobic and banana stem vegetable wastes codigestion ?
OUR RESEARCH QUESTION
GENERAL OBJECTIVE
To evaluate temperature effect in mesophilic and thermophilic conditions in methane production from cattle and banana stem vegetable waste co-digestion.
SPECIFIC OBJECTIVES
• To assess the influence of livestock/vegetable wastes in methane production during co-digestion.
• To determine kinetics of methane production at different temperatures.
• To determine the COD, total solids, fixed solids, volatile solids and humidity, in livestock and vegetables waste co-digestion treatment.
EXPERIMENTAL DESIGN
VARIABLE
TEMP.
VARIABLE: SUBSTRATE RATIO
X = vegetable m/ (vegetable m + animal m) (%)
X1 = 0 X 2 =1/3 X3=2/3
X4 =100 (33.3) (66.6)
T1 (25ºC) T1, X1 T1, X2 T1, X3 T1, X4 T2 (35ºC) T2, X1 T2, X2 T2, X3 T2, X4 T3 (45ºC) T3, X1 T3, X2 T3, X3 T3, X4
Total Treatms. 12
Total assays 36
RESULTS
METHODS
To take samples
Livestock C. O.M Animal
Wholesale CentralO.M vegetable
STEM BANANA
Mix and get Xi:X1, X2, X3, X4
Analyze each sample X1, X2, X3 y X4
Do 3 repetitionof each one to get Xij (12)
InicialAnalysis (SST y SSV),
COD, humIdity, pH, conduct.Upload biorxtors (12)
up to one third
Put stopper and valve, injection N2
Heat bath Mary a T cte
Analysis of CH4x chromatography
Analysis fin. (SST y SSV), DQO, humidity, pH, conduct.
Time = 40 days
Analysis microbiological
O.M. 40 day
Time= 4 days
TIME DURATION
PROCEDURE
LABORATORY ANALYSIS
SAMPLE COLLECTIONS
UPLOAD ANAEROBIC BIOREACTORS
CH4 PRODUCTION KINETICS (25°C)
CH4 PRODUCTION KINETICS (35°C)
CH4 PRODUCTION KINETICS (45°C)
CONCLUSION
• By increasing the temperature it can be obtained energy in methane structure from waste cattle and banana stem co-digestion, which are abundant in banana plantations and cattle areas in Colombia and other tropical countries, achieving a great reduction of greenhouse gases emissions.
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