Posts Tagged ‘landfill’

Sewage + Landfill = Green

Tuesday, October 7th, 2008

According to a new study done by Viridis Waste Control LLC, dumping sewage into a landfill can accelerate the biodegradation of the trash. Faster biodegradation of garbage means that landfills will have a longer lifetime and more land will not have to be used for a landfill.

Both sewage and the organic matter in garbage decompose and produce methane on their own, resources that are both already tapped for their energy potential at many waste facilities. This occurs because anaerobic microorganisms in the waste process the organic matter and produce methane as a by-product. The greater the amount of bacteria and organic matter, the faster the decomposition.

Landfill garbage breaks down relatively slowly due to the small amounts of bacteria and the separation of the organic matter by plastic bags and other non-degradable materials. While landfills do promote decomposition and the production of methane, this process is quite slow. With the Septage Bioreactor Landfill technology, septage is blended with ground garbage, allowing the organic matter to decompose much faster than it otherwise would. This creates large quantities of methane in a short period of time, which can be tapped for fuel. The other advantage of this technology as a fuel source, is it produces methane constantly as long as there is organic material fed into it. We have no shortage of garbage or sewage, so this will create a very plentiful and reliable source of energy.

The accelerated decomposition also results in less space being used in the landfill, extending its lifespan, as well as reducing groundwater leaching or runoff. On a similar note, separating septage from the rest of the sewage flow would allow for much smaller, decentralized wastewater treatment facilities since only greywater would be left; a substance that can be easily and quite effectively treated with natural systems.

via greengeek