Effect of Dry Matter Concentration on Dry Anaerobic Digestion of Animal Manure and Straw

Abstract:

In this paper anaerobic digestion of dairy manure and straw was conducted to produce biogas. Under the conditions of C/N=25-30 and T=36°C, five kinds of dry matter concentration of 20%, 15%, 10%, 5% and 2.5% were tested to investigate the effect of dry matter concentration on anaerobic digestion. The result showed that first 30 days was the biogas production peak phase and VFA concentrations in the leachate were also high during the same period. When dry matter concentration increased, biogas production appeared larger fluctuation, and alkalinity and NH4+-N concentration in the leachate also increased with higher organic loading rate. Among five kinds of dry matter concentration, 10% was more suitable for anaerobic digestion to produce biogas with total biogas production amount of 4710 mL after 30 days and volumetric biogas yield of 0.313 m3•m-3•d-1. These results could provide instructive meaning to the engineering application of dry anaerobic digestion.

• Periodical: Applied Mechanics and Materials (Volumes 253-255)
• Pages: 897-902
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.253-255.897
• Online since: December 2012
• Authors: Li Jun Shi, Miao Huang, Wei Yu Zhang, Hui Fen Liu
• Keywords: Anaerobic Digestion, Biogas, Dairy Manure, Dry Matter, Straw

References

[1] I. Angelidaki, L. Ellegaard and B. K. Ahring: Biotechnology and Bioenigeering, Vol. 42 (2) (1993), p.159

[2] J. Clemens, M. Trimborn and P. Weiland: Agriculture, Ecosystems and Environment, Vol. 112 (2006), p.171

[3] X. Li, L. Zhao and J. Han: Chinese Biogas, Vol. 24 (4) (2006), p.23. (In Chinese)

[4] O. Guo, Y. Li and R Bai: Journal of Northwest Agriculture and Forestry University (Natural Science Edition), Vol. 37 (6) (2009), p.137. (In Chinese)

[5] P. Kaparaju, S. Luostarinen and E. Kalmari: Water Science and Technology, Vol. 45 (2002), p.275

[6] P. Weiland: Applied Biochemistry and Biotechnology l, Vol. 109 (2003), p.263

[7] Y. Bian, Q. Liu, J. Li: Journal of Shenyang Agricultural University, Vol. 38 (3) (2007), p.440. (In Chinese)

[8] R. He, Z. Yan, X. Liu: Chinese Journal of Applied and Environmental Biology, Vol. 13 (4) (2007), p.583. (In Chinese)

[9] R. Li, S. Chen and X. Li: Applied Biochemistry and Biotechnology, Vol. 160 (2) (2009), p.643

[10] J. Du, Z. Chang and S. Wang: Jiangsu Agricultural Sciences, Vol. 36 (1) (2008), p.225. (In Chinese)

[11] C. Zhang, Y. Li and D. Bu: Chinese Journal of Applied Eology, Vol. 19 (8) (2008), p.1817. (In Chinese)

[12] P. Weiland: Applied Microbiology Biotechnology Vol. 85 (4) (2009), p.849

[13] Y. He: Anaerobic biological treatment of wastewater (China Light Industry Press, Beijing 1998)

[14] S. Bao: Soil agriculturalization analysis (China Agricultural University Press, Beijing 2005)

[15] P. Buffiere, D. Loisel and N. Bernet: Water Science and Technology, Vol. 53 (8) (2005), p.233

[16] H. K. Ahn, M. C. Smith and S. L. Kondrad: Applied Biochemistry and Biotechnology, Vol. 160 (4) (2009), p.968

[17] Q. Zhang: Biogas technology and its application (China Chemical industrial University Press, Beijing 2008)