TOPIC: USES OF BIOGAS AS A SORCE OF FUEL IN THE FARM
DATE:
INTRODUCTION
Biogas has been over the years used as a cheap but reliable source of power in the farm. This is because its raw material are easily and cheaply available because they are mainly animal waste. Biogas is highly advocated as a source of power of in the farm because it takes care of animal waste degrading it to produce biogas and the remains having been well fermented is used as manure in the farm. Biogas is also safe to use for it produces less if any smoke when combusted unlike other fuels another advantage is that it can be used in many areas such as cooking, lighting and also as fuel for light and heavy duty engines. Below is discussion on how biogas is obtained and used in the farm.
DISCCUSION
* OCCURRENCE
Biogas is as a result of microbiological decomposition of organic feedstock in an oxygen-free environment. This can be artificial by use of an engineered anaerobic digester or naturally when it occurs in swampy and marshy areas. Organic feedstock goes through the following process to form biogas. The first process is hydrolysis, which involves the destruction of organic cells to create substances such as amino acids, fatty acids and sugars. Hydrolysis is the single greatest determinant of AD system sizing. The second phase is fermentation, which involves the conversion of the products of hydrolysis into amino acids, propionate and long-chain fatty acids. The third phase is methanisation, during which methane (CH4) gas is produced from the products of fermentation.
* COMPOSITION
Biogas is composed of 60% methane and 40% carbon IV dioxide, the methane percentages can be increased to about 97 to 99% methane to produce natural gas which is more valuable an can be used in more areas plus it can also be packaged for sale.
* USES
1. DIRECT COMBUSTION
This refers to the use of biogas in a combustion system these combustion systems include boilers and flares. Boilers...