methane production assessment by anaerobic codigestion from stem banana and cattle waste

SERGIO ENRIQUE ARANGO OSORNO,Chemical Eng. Candidate to Master Science of Eng. (Environmental).

sereucaris@gmail.com

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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THANKS

CONTACT

sereucaris@gmail.com