HOW IS BIOGAS MADE?

Dead animals and plants rot and decay.
In swampy areas, for example, dead plants fall into the water. As they decay, they give off gas. Scientists call this biogas.
Biogas comes from garbage, sewage, and manure, too.

Biogas is a source of cheap energy for many villages in China. Many vehicles are fueled by methane, a mixture of biogas and carbon dioxide.
Biogas is a valuable source of energy which is often wasted. When materials decay, the biogas mixes with carbon dioxide, forming a gas called methane. Large amounts of methane can be dangerous—a tiny spark near the gas can cause an explosion. But if methane is collected safely and stored correctly, it can provide an important source of energy.

Biogas could be important in countries where other fuels are scarce or too expensive. A small village can use its own garbage and sewage to produce biogas. People collect the droppings of farm animals and put them in a tank. Some of the waste turns to liquid. The liquid soon starts to give off methane, which is kept in a storage tank that has an expandable lid. The gas can be used in homes for cooking and heating, or as fuel to power an engine or an electric generator.

Read more

What is Air Made of? – composition of air fo... About one-fifth of the air is oxygen. Human beings and other animals would not be able to survive without oxygen.When we breathe, our lungs take ...
Art projects for kids – My Star File 1. You need:2. Choose a star. Glue some photos onto the sheet of paper. Cut out or write their name.3. Fold the sheet of paper twice to make a booklet...
What is a Magnetic Field – Magnetic Field de... You can't see magnetism, but you can feel it working near a magnet.In the space around a magnet is a magnetic field. If you hold something made f...
Jack in the Box – How to Make a Jack in the ... A Jack in the box (Fig. 289) is a simpler toy to make than you might imagine. The box should measure about 5¾ inches by 5¾ inches by 5 inches. H...
Close Menu