What do you think about use of processed Landfill methane to more usable energy such sas LNG ?

Answer 1

Yes. I have posted on this before. All class 4 landfills produce methane gas which is generally burned off.

I have to give credit to Waste Management, they are one of the first to use the Methane gas in their plants, and on the sites.

In Northern Arkansas, they even convert the methane gas into fuel for their heavy equipment.

It is not so expensive to pipe this gas, it is just that there isn't enough profit to be generated since it comes from an abundance of garbage.......Some day soon, when there are regulators and administrators.....

bless

One person commented that landfills letchete goes into the ground and contaminates water tables...if they are they are in violation of reg. 22 and they will be fined and a clean-up will ensue. Until Katrina landfills were regulated by EPA on a Fed level and Dept of Environmental Equality on the State levels.

If you know of a landfill whose 2 ft of clay liner, and geosynthetic liner is leaking, notify your Dept. of Environmental Quality......

Answer 2

Landfill gas is primarily a mixture of methane and carbon dioxide. While the exact composition of this mix varies somewhat depending on the nature of the organic matter in the landfill, and the land fill moisture content, it is always close to 50/50. This gas will burn, but it contains only half the energy of natural gas (which is essentially pure methane). To be used as a substitute for natural gas, the CO2 must be removed. This is generally done by compression, followed by adsorption of the CO2 on molecular sieves in a pressure swing adsorption (PSA) unit. The purified methane can be blended into natural gas. The recovered CO2 is usually vented to atmosphere, but could be used for industrial purposes if such a market exists.

The energy required to compress the landfill gas is provided by buring some of the recovered methane.

Answer 3

It is a good idea. My brother worked on a small gas turbine generator that was built on a closed landfill and used gas from the landfill to generate electricity in the early 1980s. The government has an outreach program to promote such installations. See the source.

Answer 4

The use of landfill generated methane as an energy source had double benefits. By capturing the gas, it is not released to the atmosphere, where it is a "Greenhouse Gas", and second , the use as an energy source means using less of our natural gas resource. (An interesting example of an new application is in Houston, TX, where landfill methane will be sent by pipeline to a local brewery as an energy source How about that: Less greenhouse gas and more beer!!)

Answer 5

I think this is a great idea and GE already has a generator and process that '...commercial landfill gas (LFG)-to-liquid natural gas (LNG) conversion facility...'.

See the link for the full article.

Answer 6

Its to expensive and the real problem with landfills is that they leach contaminates into ground and surface water.The study estimated that highly contaminated leachate was flowing into the underlying ground waters and adjacent surface waters at each site. The estimated volumes of leachate were; Fresh Kills; 4,000,000 gallons per day; Fountain Avenue;441,000 gallons per day; Brookfield Avenue;262,000 gallons per day Edgmere;167,000 gallons per day;Pennsylvania Avenue;164,000 gallons per day; and Pelham Bay;121,000 gallons per day.More recent studies have provided leachate estimates varying from 1.4 million gallons per day to 2.0 million gallons per day at the Fresh Kills dump.

Answer 7

its a better idea than letting the stuff just bleed into the atmosphere.
we should have been using waste long ago to create energy.

Answer 8

Why?? If it's in our landfill, why can't we pipe it to be used immediately.