Abstract:
This research aims to study the biogas production from co-digestion of chicken manure with Thai rice noodle wastewater by anaerobic digestion. The purpose of this research was to study the effect of chicken manure to wastewater for biogas production and the factors that affect the rate of biogas production. It divided 5 experiment include; digester 1, 2, 3, 4, and 5 the different addition of chicken manure (10, 20, 30, 40 and 50 grams) per 200 mL of wastewater. Batch systems used anaerobic digestion was operated at room temperature (28-30 oC) The results showed that the Thai rice noodle wastewater gave pH and COD of 4.3 and 4,200 mg/L , the chicken manure gave pH and COD of 6.7 and 10,740 mg/L . The biogas production and the methane content all digesters were in the range 358-2,385 mL and 30.38-50.66%. The digester 3 use 30g of chicken manure gave highest of methane production and bio-methane potential (1,216 mL and 299 mL CH4/gCODadded). The Modified Gompertz equation kinetic model was used to compare the data from the experiments. It was found that the kinetic parameters such as the maximum specific methane production rates (Rm mL/day) and the methane production potential (P, mL) in digester 3 use 30g of chicken manure gave highest ( 188.54 mL/day and 1,195.07 mL). The factor that effect of bio-methane
are COD, N and initial pH.