Modelling the Kinetics of Biogas Production from Mesophilic Anaerobic Co-Digestion of Cow Dung with Plantain Peels

被引：32

作者：

Latinwo, Ganiyu Kayode ^{[1
]}

Agarry, Samuel Enahoro ^{[2
]}

机构：

[1] Ladoke Akintola Univ Technol, Biochem & Chem Engn Biotechnol Lab, Dept Chem Engn, Ogbomosho, Nigeria

[2] Delta State Univ, Biochem & Bioenvironm Engn Lab, Dept Chem Engn, Asaba, Nigeria

来源：

INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED | 2015年 / 4卷 / 01期

关键词：

Anaerobic digestion; Biogas; Cow dung; Co-substrate; Kinetic model; Plantain peels;

D O I：

10.14710/ijred.4.1.55-63

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work investigated the effect of plantain peels as co-substrate in the anaerobic digestion of cow dung for efficient and high biogas production. The biogas experiments were carried out in two different 5 L anaerobic digesters and incubated for 40 days at ambient mesophilic temperatures (28 degrees C to 34 degrees C). The results showed that co-digestion of cow dung with plantain peels as co-substrate reduced start-up time for biogas generation and increased biogas yield by 18% as compared to cow dung alone. Peak biogas production was obtained for both digesters at pH of 6.7 and 6.9 as well as temperature of 29 and 30 degrees C, respectively. Modelling study revealed that exponential plot simulated better in both ascending and descending limb than the linear plot the biogas production rates in biogas production from cow dung co-digested with plantain peels and cow dung alone, respectively. Logistic growth model and modified Gompertz plot showed better correlation of cumulative biogas production than exponential rise to maximum plot. These results show that biogas production can be enhanced efficiently through co-digestion process.

引用

页码：55 / 63

页数：9

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