Anaerobic digestion takes place naturally in landfills, waste degradation occurs naturally and pretty slowly. Biogas and leachate production continues for several decades even after the landfill closes. Buried waste can dry out after a while, but remains still not completely stabilized.
The degassing of landfills is a major challenge for the climate and the environment. Urban landfills in Morocco produce more beween 400 and 700 M m3 / year of biogas, of which today only 5 – 10% is captured and flared, the rest escapes into the atmosphere; an equivalent of at least 3 million tonnes / year of CO2 greenhouse gas emissions equivalent (some estimates indicate much higher emissions).
Currently, only 1% of the landfill gas is utilized (engine), the 99% is lost, the latter, according to our estimates, correspond to at least 70 MW electric power with an annual continuous production of 630 GWh, which can cover the need of 165,000 Moroccan households.
Again we want to point out that higher and more favorable production estimates indicate a loss of up to 1,5 TWh / year of electricity lost (eq. 400,000 Moroccan households of 4).
The well functioning of the complete degassing system on landfills must be ensured at all times, generizon provides the following services.
- dimensioning of the degassing system,
- piping vertical, inclined, horizontal, planning, engineering,
- advice on the position, operation of the flare, as well as functioning of all elements, sales and service,
- gas booster/compressor, sales and service,
- leachate evacuation system, advice,
- utilization of biogas, generator of electricity, sales and service,
- desulfurization and drying of biogas,
- connection, sale of electricity,
- use of heat (combined heat and power CHP) for leachate treatment solutions,
- advice on climate carbon credits.