Since 2012 the plants of bromeliads breeding company Corn. Bak are growing on heat generated by utilisation of landfill gas at our landfill Nauerna in The Netherlands. The green house complex of Corn. Bak is situated near our 80 hectare landfill site. All the renewable energy produced from landfill gas which is not used on the landfill site is sold the green house owner. A great example of synergy between landfill owner and its surroundings.
Landfill gas generation and recovery system
Because landfill site Nauerna receives low organic waste streams, landfill gas production is relatively low. Calculations with the Afvalzorg Multi Phase Model show a landfill gas generation rate around 800 m3 lfg/h in 2021. To optimally recover the generated gas, Afvalzorg designed and constructed a landfill gas recovery system which consists out of more than 200 vertical wells and over 50 hectare of horizontal landfill gas recovery fields.
Heat distribution network
Recovered landfill gas is being utilised in two boilers connected to a heat distribution network. Heat is distributed through a 4 km long isolated network connecting our leachate purification plant and the main office of Afvalzorg situated on the landfill. At our office heat is both used for warming as well as cooling of the building. All excessive heat is sold to the green house complex of Corn. Bak. Revenues generated via landfill gas utilisation are all used to maximise emission reduction on our landfill site.
Landfill Nauerna will reach its maximum capacity in 2022 and is currently been redeveloped into a 60 ha recreational park and an industrial area for recycling activities (e.g. bottom ashes).