2 Responses

1. Biofuel is defined as solid, liquid or gaseous fuel obtained from relatively recently lifeless or living biological material and is different from fossil fuels, which are derived from long dead biological material. Also, various plants and plant-derived materials are used for biofuel manufacturing
   Landfill sites generate gases as the waste buried in them undergoes anaerobic digestion. These gases are known collectively as landfill gas (LFG). This is considered a source of renewable energy, even though landfill disposal is often non-sustainable. Landfill gas can be burned either directly for heat or to generate electricity for public consumption. Landfill gas contains approximately 50% methane, the gas found in natural gas. Land fill gas can be easily purified and then fed into the Natural Gas grid.

   If landfill gas is not harvested, it escapes into the atmosphere: this is undesirable because methane is a greenhouse gas with much more global warming potential than carbon dioxide.[9][10] Over a time span of 100 years, one ton of methane produces the same greenhouse gas (GHG) effect as 21 tons of CO2.[11] When methane burns, it produces carbon dioxide in the ratio 1:1—CH4 + 2O2 = CO2 + 2H2O. So, by harvesting and burning landfill gas, its global warming potential is reduced a factor of 23, in addition to providing energy for heat and power.

   It was recently discovered that living plants also produce methane.[12] The amount is 10 to 100 times greater than that produced by dead plants in an aerobic environment but does not increase global warming because of the carbon cycle.[13] Anaerobic digestion can be used as a waste management strategy to reduce the amount of waste sent to landfill and generate methane, or biogas. Any form of biomass can be used in anaerobic digestion and will break down to produce methane, which can be harvested and burned to generate heat, power or to power certain automotive vehicles.

   A current project for a 1.6 MW landfill power plant is projected to provide power for 880 homes.[14] It is estimated that this will eliminate 3,187 tons of methane and directly eliminate 8.756 tons of carbon dioxide release per year. This is the same as removing 12,576 cars from the road, or planting 15,606 trees, or not using 359 rail cars of coal per year

2. what is biofuel
   Biofuel is a natural alternative from other fossil fuels and is attained from living or biological material that has just died.
   Biofuel can be distinguished as a gaseous, liquid or solid fuel and is generally used for vehicles, homes and cooking. It powers vehicles and produces heat and electricity in homes. Modern technology has even designed a system where pollution can be converted into renewable biofuel. Household, forestry, industry and agricultural waste are used to produce bioenergy that can be stored for an indefinite time period. This is just one aspect of biofuel that differentiates it from other fossil fuels and crude oil.

   Another enticing characteristic of biofuel is the fact that it is renewable unlike other natural energy resources such as coal, nuclear fuels and petroleum. In private homes, biofuel is an excellent energy solution however in an industrial scale; there are still several major problems that need to be fixed before biofuel is recognized universally. Nevertheless, with the advancement of technology and in depth studies of environmentally friendly products, it looks like biofuel may be the answer to future problems as it is non-toxic and biodegradable.

   EDIT
   Paligadu – i have looked at your other answers and and you are submitting the exact answers which other members have submitted!!
   i have previously notified you of this. you are now reported!!
   copying and pasting other members’ answers are forms of cheating