Special uses of biogas, Biology

Special Uses Biogas

Biogas is an important renewable energy resource for rural areas. Generation of bio-gas from dung and urine is a very simple and cost-effective way of producing energy for lighting as well as cooking. Biogas can be used to operate a dual fuel engine to replace up to 80% of diesel-oil. Diesel engines have been modified to run 100 % on biogas. Production of bio-gas also results in the production of a very useful by-product in the form of slurry, which is an extremely good manurial source, and it contains more nutrients than that in compost.

a.  Vermicompost

b.  Natural Composting helps in converting some organic solids in to carbon dioxide, thus, reducing volume. Natural composting takes at least 6 months to get the desirable effect. However, length of composting time can be reduced to 60-75 days by addition of earthworms @ 1 kg/10 quintal of dung in trench method. Vermi-composting helps not only in reducing the quantity but also helps in increasing the N,P,K content to 3 to 4 times more than that of farm yard manure

Table- NPK Content (%) in various types of manures

 

Types of manure

Nitrogen (N)

Phosphorus(P)

Potash (K)

Farmyard manure /compost/slurry

0.5

0.5

0.25

Vermicompost

1.5

2.0

1.0

Biofertilizer

3.0

1.0

1.0

which about 0.5, 0.5 and 0.25 percent of Nitrogen, Phosphorous and Potash; respectively. So in Vermicompost the N,P,K increase 3 to 4 times as compared to ordinary compost (Table 3). Addition of algae (Azolla) and some other nitrogen and phosphorus fixing bacteria may further increase the manurial value of vermin compost.

c.  Bio-dynamic fertilizer

1. Fresh cow dung is collected in the hollow of cow's horn and kept in the dung heap for 6 months. It is said that 35 gram manure prepared by this methods mixed in 10 lit of fresh water is sufficient for 1 acre of land. This may help in development of favourable microbes due to anaerobic fermentation, which can kill the pathogen in the field. This however, is not a proven technology.

d.   Panchgavya

The phrase gavya is given to cow's products.  Panchagavya comprises cow dung, cow urine, cow's milk, curd and ghee, suitably mixed to give beneficial growth effects on plants when sprayed on them.

Posted Date: 9/20/2012 2:40:54 AM | Location : United States







Related Discussions:- Special uses of biogas, Assignment Help, Ask Question on Special uses of biogas, Get Answer, Expert's Help, Special uses of biogas Discussions

Write discussion on Special uses of biogas
Your posts are moderated
Related Questions
Carrageenan Carrageenan is a collective term for polysaccharides prepared by alkaline extraction (and modification) from red seaweed (Rhodophycae). Carrageenan is a sulfated ga

WHAT TRAITS ALLOWED VASCULAR PLANTS TO GROW TALL

Dextran Dextran is a high molecular  weight polysaccharide having  α1→ 6,  α1→ 3 linked glucans. It is produced by the bacterial fermentation of sucrose by  Leuconostoc dextran

Tenofovir disoproxil fumarate (TDF, Viread)  Tenofovir DF is the only nucleotide RTI available for treatment of HIV. It is a prodrug of tenofovir, a potent inhibitor of HIV rep

All the water used in the home that goes into the drain or into sewage collection system is called waste water. Domestic sewage is the waste water from kitchens, bathrooms etc. It

Epidemiology:   The study of disease in populations.  Includes: The Aetiology of the disease Patterns of distribution of the disease How the disease spread

Anima l Nutrition Nutrition is the procurement of substances necessary for growth, maintenance and activities of a living body. The substances used for nutrition are called

what is the effect that korarchaeotes have on humans?

Some activities that make use of biological resources, without involving their extraction or destruction, denote non- extractive use of biological resources. This includes ecotouri

What are some of the things scientists may do to analyze data? They may use statistics to determine relation- ships among variables, compare the data with those obtained in ot