Landfill Gas
Utilization of landfill gas
Landfill gas is widely regarded as a renewable energy resource. It can be used for generating electricity, used as medium calorific value fuel, or processed into high calorific value fuel by vapor-liquid separation and by solvent scrubbing to remove the contaminating liquid condensate and vapor contaminants.
A summary of landfill gas utilization technologies is listed below:
- For power generation - internal combustion engines, gas turbines, fuel cells.
- As a medium-CV (calorific value) fuel - direct combustion of the gas in a boiler or industrial furnace, gas-fired chiller, industrial process heating, leachate processing
- As a high-CV fuel - pipeline-quality gas, compressed gas vehicles
In Hong Kong, landfill gas is used in mainly three ways, including
- for power generation with engine gensets to meet on-site electricity needs;
- as a fuel in the treatment process of the leachate arising from the landfill;
- as a fuel for process heating in towngas production.
In Hong Kong, the landfill sites are under the Environmental Protection Department (EPD). For more detailed information about the applications of landfill gas in Hong Kong, please visit the relevant page at the EPD website:
This link will open in a new windowThis web page has hyperlinks which may transfer you to third-party website.http://www.epd.gov.hk/epd/english/environmentinhk/waste/ prob_solutions/msw_lgu.html