methanisation

The methanization

GUILBERT Maelle et VANOOST Oceane SEE1

Summary

1. What is it ?

2. How it works ?

3. Wich countries use anaerobic digestion ?

4. Why use methanization ?

5. The various disadvantages

What is it ?

It is a biological process of degradation of organic matter

A few points to highlight

Synonym : biomethanization or anaerobic digestion

Location : ArchaeaDate : between 4.11 and 3.78 billion years ago

the different actors

Marcel Isman

Antoine Lavoisier

Alessandro volta

GILBERT DUCELLIER

Digester patented in 1930

showed that "marsh gas" produced a gas that was flammable.

Digester patented in 1930

found its chemical formula: "Dihydrogeniumcarbonatrum".

Nothing is lost, nothing is created, everything is transformed.

aNTOINE LAVOISIER

how it works ?

the digester principle

In the digester, the bacteria cut up the organic matter, digest it, transform it and recombine its components.

Which countries use anaerobic digestion ?

allemagne

Royaume uni

5067,6 Ktep

1764,8 Ktep

the 3rd most important countries that use methanization

italie

1095, 7 Ktep

methanization in europe

AGRIculture

93.04 terrawatt -hours

197.71 terrawatt-hours

animal excrement

household waste

agricultural crops

Why use methanization ?

Why we use anaerobic digestion ?

production of biogas and biomethane

way of reducing the amount of organic waste

the production of heat, electricity or fuel

organic waste to good use, producing renewable energy and a biological fertilizer

According to Ademe's "La méthanisation en 10 questions", each kWh of biomethane injected into the gas network avoids 200g of CO2 equivalent.

Various disadvantages

THE DISADVANTAGES

• he initial investment is very high
• to pay for maintenance and training to learn

• pollute the soil
• affect the water table
• 1% of biogas consumption in France

Thanks!