Extracting ammonia from anaerobic digestate

Anaerobic digestion is a natural biological process that is commonly used to treat organic waste, of which the main product is biogas. While the carbon content in the organic feedstock is normally converted into biogas, nitrogen content in the feedstock leads to production of ammonia. Accumulation of ammonia is detrimental as it inhibits biogas production.

At the same time, production of ammonia from current processes is energy-intensive and contributes significantly to global carbon emissions. As such, there is increasing demand for green ammonia which is produced in a renewable and carbon-free manner. Thus, this project aims to develop viable methods for extracting ammonia from the anaerobic digestion process in order to address the problem with ammonia toxicity in anaerobic digestion and create a sustainable source of green ammonia.

youtube-video-thumbnail

Project Team

Students:

  • Cheong Jia Sheng (Chemical Engineering, Class of 2024)
  • Wong Jia Ler (Chemical Engineering, Class of 2024)

Supervisor: