Nanjing, CHN

Anaerobic Digestion


53'500 t/a

Biogas use

electricity generation

Biogas produced

7,500,000 Nm3/a

Like many cities in China, Nanjing is struggling with ever-increasing volumes of waste from a steadily growing urban population. With landfill sites increasingly full and encountering problems with acceptance, there’s a growing need for sustainable technologies. Alongside thermal energy recovery, these also include the biological fermentation of organic waste. This trend is receiving a boost from new legislation requiring the recycling and recovery of energy from restaurant and household kitchen waste. The delivery of two PF1800 Kompogas®steel digesters for Nanjing’s new waste park marked HZI’s entry into the Chinese market. The Kompogas®dry fermentation system is used to convert organic household waste into biogas, which is then used to generate electricity.


  • Type of waste: organic fraction of municipal solid waste (OFMSW)
  • Digester type: PF1800 steel digester
  • No. of digesters: 2


  • German Bio Energy Technology

Commencement of operation

  • 2020

Components supplied by HZI

  • dry fermentation