By-products of anaerobic treatment: methane and digestate from manures and cosubstrates

Authors

Long D. Nghiem, University of WollongongFollow
Faisal I. Hai, University of WollongongFollow
William E. Price, University of WollongongFollow
John Wickham, University of WollongongFollow
Hao H. Ngo, University of Technology SydneyFollow
Wenshan Guo, University of Technology SydneyFollow

RIS ID

112470

Publication Details

Nghiem, L. D., Hai, F. I., Price, W. E., Wickham, R., Ngo, H. H. & Guo, W. (2016). By-products of anaerobic treatment: methane and digestate from manures and cosubstrates. In D. Lee, V. Jegatheesan, H. H. Ngo & P. C. Hallenbeck (Eds.), Current developments in biotechnology and bioengineering: biological treatment of industrial effluents (pp. 469-484). Amsterdam, Netherlands: Elsevier.

Abstract

Anaerobic digestion is a widely used and probably the most sustainable technique for biogas production and nutrient recovery from manure. This chapter describes the process of anaerobic digestion of manure and other cosubstrates with a specific focus on biogas and digestate utilization. Biogas purification is one of the most significant bottlenecks to fully realizing the range of biogas utilization for not just energy production but also other forms of beneficial usages. Thus, biogas purification techniques are discussed in detail in this chapter. Digestate from manure is an excellent biofertilizer and can be applied using the same equipment designed for liquid fertilizer. Previous studies corroborated in this chapter highlight the importance of quality control and digestate application practice particularly when manure is codigested with other cosubstrates or the digestate is used on a different farm.