How Biogas Plant works

How Biogas Plant works?

Energy is biggest crisis all over the world, and particularly for farmers in rural areas of India Pakistan, Philippines, China etc., deforestation increasing day by day  and the availability of fuel to decrease to the point that energy very important for the most basic needs of cooking for home.

Model Of Biogas Plant Large Photo

Fortunately, most villagers have the answer to  energy problem on their very own farms. Farmers who own buffalos cows, and chickens can collect the waste from these animals The waste digest under oxygen free environment  and creates gas that is use for cooking, lighting, heating etc. and the processed animal waste called slurry is a very organic nutritious fertilizer that has increase doubled crop yield for biogas plant users.

By installing a biogas system, the farmer produces two very important products: biogas to replace unreliable, unhealthy and expensive fuels, and biofertilizer or organic nutritious fertilizer to replace expensive and harmful synthetic fertilizers and increase their crop yield by farming the same amount of land.

Biogas Plant has main two common type in the world,  1st is Movable dome biogas Plant and 2nd is Fixed dome plant these plant working are same but the storage of gas is different.

What is the feed of Biogas Plant”

Organic Waste:

Organic wastes such as human feces, cow dung, vegetable scraps, greases, green waste…really anything that can rot can be used to produce biogas. The waste is mixed with water and loaded into an anaerobic digester. The digester maintains an oxygen-free environment suitable for methane-producing archeabacteria (also called methanogenic bacteria) to metabolize proteins, lipids and carbohydrates in the waste into biogas.

BIOGAS: 

The biogas is approximately 65% methane and 35% carbon dioxide and several other gases at low concentrations. The anaerobic digester collects the biogas as it bubbles to the surface.

DIGESTATE:

After the bacteria have consumed the energy from the waste there are still leftover solids. This digestate contains little pathogenic bacteria, if any at all. The digestate can be used as an organic agricultural fertilizer at a much lower price than the chemical fertilizers.

FERTILIZER:

Organic fertilizer from digestate also contains more micronutrients than chemical fertilizer, which will replenish the soil for long lasting soil fertility.

See Also:

• Biogas digester - Introduction Video

• 3D printing model of Biogas Plant

• Portable Biogas Plant

 

 

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News: Small biogas power plant planned for North Kingstown USA

Small biogas power plant planned for North Kingstown USA

source: quonset.com

A New Hampshire company plans to build a small biogas power plant in the Quonset Business Park that would generate electricity by burning the gas given off  anaerobic digestion this technology  has been largely untried in the United States.
NEO Energy, of Portsmouth, N.H., has plans for two similar facilities in Massachusetts, but the 500-kilowatt Quonset plant appears to be on track to be the first in operation, with a target date set for the end of next year, according to Anthony M. Calandrello, chief operating officer for the company.

The anaerobic digestion process that the Quonset facility would use is a variation of what’s already being done at many sewage treatment plants in the United States that collect methane and then burn it for heat and electricity. Although food-waste digesters are common in Europe, where there are thousands of such facilities, there are very few on this side of the Atlantic

NEO Energy is not the first company to propose tapping biogas as a renewable source of power in Rhode Island. Orbit Energy, of North Carolina, has been working on a plan to build a 3.2-megawatt facility at the Central Landfill in Johnston.

The $10-million plant at Quonset would take 20,000 tons a year of food scraps and use it to generate enough power every year for about 670 typical Rhode Island homes. The organic matter left over would be used to create annually about 1,000 tons of fertilizer. The digester would be sealed and a filtration system would control odors.

The program, which sets ceiling prices for different forms of energy, has mainly benefited wind and solar projects so far, but lawmakers recently expanded its scope to include small hydropower plants and anaerobic digestion. The ceiling price for anaerobic digestion is 18.55 cents per kilowatt hour, significantly higher than power from fossil-fuel plants but competitive with wind and solar.

 

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News: WWF Nepal and AEPC MoU

credit: WWF Nepal / Akash Shrestha

Government of Nepal’s Alternative Energy Promotion Centre (AEPC) and the  World Wildlife Fund (WWF) Nepal  signed a MoU to launch the second phase of the WWF Nepal Gold Standard Biogas VER Project.

A total of 20,000 biogas plants will be installed during this phase over a period of eight years ending 2020 and covering nine districts, including 81 Village Development Committees and three municipalities, in Nepal’s Terai Arc Landscape. This project falls under AEPC’s National Rural & Renewable Energy Program and seeks to minimize pressure on forests by addressing one of the drivers of deforestation and forest degradation, promote sustainable management of forests, and leverage on micro-credit schemes and carbon financing for the sustainability of the project.

Biogas brings multiple benefits on the social, environmental and economic stated Dr. Govind Raj Pokharel, Executive Director at AEPC. The government needs the support of partners, ranging from the private to the non-government sectors, and this MoU is a milestone in leveraging partnerships to help us protect the environment and improve the lives of local communities.”

The Terai Arc Landscape is home to about 7 million people. With a dense population, high biodiversity and fragile ecosystems, deforestation is a major issue facing the Terai Arc. Unsustainable fuelwood extraction affects both community and government-managed forests. Biogas, as an alternate fuel, has proven to be a successful intervention in minimizing people’s dependence on forests for fuelwood. Research indicates that a biogas unit can save nearly 4.5 tons of firewood, and reduces the emission of 4.06 metric tons of CO2 equivalent annually.

The WWF Nepal Gold Standard Biogas VER Project has also helped introduce a sustainable financing scheme through carbon financing. The first phase of the project which ended in 2011 helped install 7,500 biogas plants in the Terai Arc Landscape generating upfront revenue of USD one million from the sale of carbon credits through MyClimate – trading at 13.5 Euro per ton of CO2 equivalent – in the first phase of seven years of the 21-year trading period. Such incomes have been channeled back to the local communities to install additional biogas plants for new households through micro-credit. The biogas project is a perfect example of building harmony between humans and nature, where a simple conservation idea is helping provide sustainable benefits to both”, stated Mr. Anil Manandhar, Country Representative of WWF Nepal. “We are proud to be a partner of AEPC and the local communities to help build on the success of the first phase of the Gold Standard Biogas VER Project, and look forward to ensuring the sustainability of the project
Source:www.wwfnepal.org/

See Also:

Punjab Agriculture Department successful install 1,476 plants

Biogas Technology In India

Mini Biogas Digester

 

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Biogas Plant Photos

Biogas Plant Photos

GOBAR GAS

BIOGAS

LARGE BIOGAS PLANT

bio-gas-plant

DIAGRAM

biogas plant diagram

Some Photo diagrams of Biogas Plant types which are very common and popular in india, Pakistan Bangladesh Philippines, USA sri lanka.there are basically two type Fixed dome biogas digester plant and movable plant thats are modified by scientists to increase the efficiency of biogas production.

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Punjab Agriculture Department successful install 1,476 plants

 The Punjab Agriculture Department has moved a summary to the provincial government to approve a project of 10,000 biogas technology plants to mitigate the energy crisis following the successful installation of 1,476 plants in the 36 districts of the province.

 

Biogas Plant, File Photo: Biogas-technology.blogspot.com

The department has also completed a pilot project of installing biogas supplemented tubewells for irrigation in 11 districts, urging the government to further allow such installations to pass on the benefit to the farmers who are bearing high cost of diesel. High cost of fuel, fertilizers and pesticides in agriculture is not only increasing input costs but also reducing earnings of farmers as well as the government in terms of foreign exchange.
According to department officials each plant with 15 cubic meter size is producing cooking needs of 10 members of a family and if utilized for power, could generate electricity up to two hours. They say dung and water are required to generate biogas energy for each house where the technology is being used.
They say the government had provided Rs72.8 million subsidy for the project of 1,476 plants, which started in 2009 and concluded in June 2013. The department is short of 24 such plants against the target of 1,500 plants and a subsidy of Rs75 million.

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