Anaerobic Digester Construction and testing videos

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Biogas Plant (Anaerobic Digester) Testing The purpose of this project is to discover ways to produce Biogas with alternate sources, this project can help students to basics of Anaerobic digestion and production of bio-gas

Source:http://paksc.org

Biogas Plant (Anaerobic Digester) Construction (Urdu) Part 3/3


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Biogas Plant (Anaerobic Digester) Construction (Urdu) Part 2/3

Biogas news, Pakistan | Call to set up biogas plants

MULTAN: Biogas plant and production engineer Muneeb Iqbal said that biogas is a cheep source of energy and urged people to set up biogas plants. Talking to APP, he asked people to set up plants in cities which can fulfil their gas and electricity needs cheeply. He said fertiliser could also be produced through biogas plants. Muneeb Iqbal said he had also successfully experimented biogas plants to operate generators for tube-wells and small floor mills. He added that work had also been started to provide electricity to the industry through biogas plants.

BIOGAS NEWS: Cuba to Build A Hundred Modern Biogas Plants

Cuba to Build A Hundred Modern Biogas Plants

Cuba to Build A Hundred Modern Biogas Plants


[Cuba to Build A Hundred Modern Biogas Plants.] Havana, Cuba, Jan 27.- Cuba will build 100 cutting-edge tubular biogas plants out of PVC in an effort to reduce the negative environmental impact generated by pig manure.

The plants will generate fuel to meet the energy needs of rural areas, thus preventing pathogenic microorganisms contained in animal wastes from contaminating the subsoil and the aquifer.

Roberto Sosa, director of the Biogas Promotion and Development Center of the Pig Research Institute told the press that one of the plants will have the capacity to process the waste of up to 150 pigs and to supply gas to the producer’s house and his neighbors.

Sosa said that thanks to a training provided to biogas producers, they are now able to assess microbiological and energetic parameters.

Meanwhile, the director of the Center for the Study of Process Engineering, Ileana Pereda Reyes noted that using the PVC technology will make the plants more resistant to blows or cracking.

The biogas is used for the generation of electricity and gas by using animal, vegetal or human solid wastes. It became popular in Third World countries due to the need to obtain cheap energy for cooking.

At present, biogas is widely employed in industrialize nations such as Germany, Sweden and Italy as an economic and renewable source of energy that reduces carbon dioxide release. (ACN)

source:
http://www.cadenagramonte.cu

DIY Biodigester

Biogas by  Kitchen waste.  DIY your ow Cost Biodigester

By Albert Campi

Construction of a biodigester

In the previous post (I) I explained the strenghts of a biodigester for a small kitchen. In this post I will try to summarize the steps to construct one, from Jaime Marti PDF, “Biodigestores familiares.”

1 .- Double layer plastic

Cut the black tubular polyethylene rolls of desired size, leaving 50 cm extra on both ends (input and output). Extend completely the plastic sleeve above the ground. One person holds the end and, without releasing it, crosses inside the digester, so that there is only one double-layer sleeve, since it is a tubular roll, seamless.

2 .- Biogas output from biodigester

In the upper half of the biodigester make a small cut on the two layers of plastic and put a bulkhead (flange) as shown in the photos. Take good care of the complete sealed to prevent outside air from the biodigester.

3 .- Inlet and outlet sludge pipes

Once the biogas output is ready, it is time to close the ends of the plastic sleeve tied to the inlet and outlet pipes. Make accordion folds and tied tightly with pneumatic league.

4 .- Introduction into the ditch

Place the plastic biodigester in the trench previously prepared, very careful to not cause any hole and reviewing not have wrinkles.

5 .- Mud level

You have to calculate the mixture of manure and water has to clog the air intake and also their escape. The biogas generated has to exit strictly through the upper pipe. The sludge has to overflow through the outlet pipe.

6 .- Biogas pipeline

The digester has already prepared the output of the biogas. Couple an outer pipe 1 / 2 “PVC to the kitchen, which should be about 20 to 50 meters maximum away.

7 .- Water accumulation inside pipes

The pipe will be high, never buried, to facilitate water drain condensation that may occur. In the “valleys” of the pipe place a “T” plug for periodically purge.

8 .- Safety valve

The safety valve near the digester has two functions: Allow the escape of excess of not consumed biogas as well as Prevent air inlet from outside (which would kill the internal process of generation of biogas). A plastic bottle with water is sufficient.

 9 .- Gas reservoir

The reservoir will be the biogas storage tank that feeds the kitchen and regulates the pressure of the gas. It must be hung near the kitchen, accessible, preferably outside but under cover of sun, rain and wind. It is built with the same procedure of the biodigester.

10 .- Biogas kitchen

The reservoir will have a pipe with stopcocks highly visible and directly to the burners, that can be housed with mud and adobe. That’s all!

You can find detailed explanations in the original document (in Spanish) BIODIGESTORES FAMILIARES. Jaime Martí.
Blog Taller Biogas Bolivia
LOW COST BIODIGESTER (English) Jaime Martí. 

Source: http://albertcampi.me/2012/01/26/biogas-kitchen-diy-your-low-cost-biodigester-ii/

KESC Biogas Project

Abraaj Capital: KESC Biogas Project

The Landhi Cattle Colony, on the outskirts of Karachi, will soon be home to one of the largest biogas plants of its kind. Behind this groundbreaking project is the Karachi Electric Supply Company (KESC), a regional energy provider and an Abraaj Capital portfolio company. The plant is part of KESC's Fuel Diversification and Sustainable Development Strategy.

The plant will use up to 3000 tonnes of locally produced, biodegradable organic waste daily. The waste will be collected from livestock, industries, food outlets, and wholesale markets throughout Karachi. The project is expected to generate 25-30 MW of electricity, increasing energy output in the face of rising demand.

Animal manure produces electricity


At the same time, a gas development project of global methane prevents overheating
 It is not complicated nor costly expense represents the biogas can be used as household fuel, is basically obtained from the feces of cattle or pigs, but you can also take advantage of other animals and even that of the human being.Biogas is an alternative energy option which has been running strong since 2006 at national level, but Guerrero is hardly known, and that even in Mexico Initiative, which promotes a national broadcaster, as recently awarded a project of this nature, with the idea to stop using firewood in rural areas.Excrement is bulkAccording to the Director of Inspection and Supervision of the Office of Ecological Protection of the State of Guerrero (Propeg), Salvador Mojica Morga, the project in the state is serious, and even could be used wastewater treatment plant of Pungarabato.Although no exact dates handled, the state official explained the importance of alternative energy pulse, and felt that before this year could begin to see the first steps. Once in Tierra Caliente who takes this option, he said, Armando Cabrera Villela, El Chino Cabrera, between two other people.With a basic, low cost (up to 500 billion pesos in the most extreme cases) among lighter, valves and some more tools, you get the animal excrement is mixed with water pockets, and allowed to ferment. "It's a very expensive exercise, and saves a lot of money," he explained Mojica Morga.The raw material is not complicated, because a cow produces daily about 8 pounds of excrement a horse, four, and a pig, 800 grams, released the same official, "it is time to become aware and stop devastating our forests, plus it is very cheap, and families save significantly. "He said that it will open support for projects of this nature, and insisted on working "a megaproject to Pungarabato, with its wastewater treatment plant, we need only basic equipment, as the raw material and have it abundantly."

 Technical ExplanationThe technical explanation says that biogas or "swamp gas" is produced by anaerobic fermentation (without oxygen) of organic and inorganic waste, which mixed with water and placed in a closed container called a digester impervious to temperatures between 20 and 30 degrees Celsius, break down due to anaerobic bacteria.The first experiments were made at the beginning of the century, avoiding the pollution that leads to the elimination by incineration and also motivated by the difficulties caused wars in the fuel supply.Most biodigesters were built on farms. "One of the advantages is that it would devastate lower scales," said the alternative energy researcher, Miguel Antonio Vargas Palomeque.For this purpose, is in addition to manure, food waste, urine, agricultural residues such as seeds, straw, bark of sugarcane waste as well as blood traces, meat, fish waste, agro-industrial waste: sawdust, waste snuff, bran rice, fruit and vegetable waste, and forest residues such as branches, leaves, bark.For a home BioDigest said Palomeque study, requires a plastic bottle of 18 liters, an oversized rubber ball or inflatable ball, a T-connector aquarium, aquarium tubing, a valve for aquariums (with key) , a cork that fits into the mouth of the bottle, and a bunsen burner.
The stagesFor biogas are three main steps: hydrolysis, acid phase and phase hydrogen. At the end, you get a gas and a liquid. The gas contains 55-70% methane, 30-40% Carbon Dioxide, and Hydrogen 1-3% 2, and 5% other gases.The liquid known as bio-fertilizers, containing 20% ​​protein, 14% nitrogen and 20% more potassium, than the same mixture of waste processed aerobically and pH (acidity) of 7.5. Another feature of the bio-digestion, is that 99% of the parasites (amoebas, colis, tapeworms, etc..) Die in the process.Thus, not only solves problems of sanitation, but also produces a fertilizer fuel and energy independence allows rural property. The digestive process is completed between 30 and 40 days produced the greatest amount of biogas.Since the state government headed by Angel Aguirre Rivero, is in the study of a larger project to be implemented throughout the state, and municipalities, it is important and interesting to "see what can be achieved with this option alternative energy, "Mojica Morga framed.And is that only the raw material by means of cattle, you have insured more than 8 million pounds a day, not counting what they produce pigs, horses and even humans, "we will give several blows at the same time, I think the mayors and other officials must begin to operate in the interests of the entity. "And, only excrement, that is now discarded, and that lead to drainage networks of rivers, in the case of human waste, so raw contaminated water bodies, and instead of help, harm "You have to take to that."


source: http://www.despertardelsur.com (translate )

21 farmers given permission to set up biogas plant in Multan

MULTAN: As many as 21 farmers of Multan district have been given permission to set up biogas plant on their lands.

The list of successful farmers was drawn up through a lot.

According to EDO Agriculture Multan Sardar Muhammad Akbar Khan, the scheme has been initiated by the Punjab government to help overcome energy crisis through this medium.

He said the successful farmers will raise Rs 100,000 while the Punjab government will provide financial assistance of 50 percent for setting up biogas plant.

The EDO further said that plant could only be successful if the farmers possess 10 to 15 cattle heads which are enoughto produce dung for converting into biogas.

He said that Punjab government has established a committee for regular periodical inspection of biogas plants. (APP)

Nepal will expand its successful biogas programme.

Nepal leads biogas collaboration

Smriti Mallapaty

Nepal will expand its successful biogas programme.

Nepal is looking to scale up its flagship household biogas programme, which has made forays into other developing countries in Asia and Africa.

Initiated in 1992 with support from the Netherlands Development Organisation (SNV), Nepal has installed over 240,000 household biogas plants with a thermal energy capacity of 444 megawatts and greenhouse gas savings of 367,409 tonnes of carbon dioxide equivalent per year.

Biogas plants break down biodegradable matter to produce mainly methane. In Nepal, they are fed with cow dung and human waste and the output burned in cooking stoves, while the solid residue is used as farm fertiliser.

Nepal country director for SNV, Rem Neefjes, attributes the success of the programme to simple, uniform biogas technology and coordination among government, private sector and microfinance institutions.

Nepal’s model has been replicated in various Asian countries, including Cambodia, Vietnam, Laos, Bhutan, Pakistan, Bangladesh and Indonesia, according to Khagendra Nath Khanal, assistant director at the Biogas Sector Partnership (BSP-Nepal).

"We are the second largest power generator in Nepal after hydropower," said Khanal.

Several African countries are benefiting from Nepal's experience, said Paul Hassing, senior advisor of the African initiative, Biogas for Better Life. "In terms of the level of marketing of the biogas sector, it is fair to say that Nepal is still some 10 years ahead of developments in certain African countries," Hassing said.

Nepal's sharing of its knowhow on household biogas systems "is one of the best examples of south-south cooperation," said Saroj Rai, senior renewable energy advisor at SNV and former executive director of BSP-Nepal.

"Biogas technology is more sophisticated in developed countries in Europe and America, but it is so expensive that you can’t make it viable here, even with subsidies," Rai said.

Neefjes observed that the Nepal model is easy to replicate because of similarities among developing countries. "Countries at the same level of development learn much quicker from each other than countries at different stages of development."

Nepal is now ready to expand its biogas sector to cover commercial, industrial and institutional use and address growing concerns of energy security and waste management, Samir Thapa, senior energy officer at Nepal’s Alternative Energy Promotion Centre, told SciDev.Net.

For this, it hopes to benefit from south-south collaboration by learning from such countries as Bangladesh, China, India and Thailand.

Source:http://www.scidev.net

Photos of Biogas plant (Anaerobic Digester) in action

Photos of Biogas plant (Anaerobic Digester) in action

Biogas plant (Anaerobic Digester) Experiment

Concept The purpose of this project is to discover ways to produce Biogas with alternate sources by using our local resources this project can help students to basics of Anaerobic digestion and production of bio-gas by different organic wastage, basic task is to design, fabricate, and test a simple waste digester and gas collection system.With this system you can examine various facets of the anaerobic digestion process. 


Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Habab idrees with Biogas plant (Anaerobic Digester)
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
http://paksc.org/pk/diy-projects/item/764-biogas-plant-experiment.html

TyreTube Biogas Plant

The intention is to capture gas from household (kitchen) waste in small and affordable anaerobic biogas plants with low space requirements.

The developed tube-type rooftop biogas plant is best run with kitchen and food waste for methane production.


Kitchen waste as feedstock has a higher energy density compared to manure and digestion takes place rapidly.

So a smaller quantity of decomposing material needs to be held in the plant. 2-3 kg (dry matter) kitchen and food waste feedstock produces about 1 m3 of biogas, whereas 28 kg of cattle dung feedstock would be needed to produce the same quantity of gas.

TyreTube Biogas Plant


TyreTube Biogas Plant Diagram



Handling of the plant and waste

The wet organic material (kitchen waste and food waste) is collected in bins and containers brought to the rooftop. The waste is then mixed with water (twice daily 1kg of kitchen waste with 2 litres of water) and directly charged into the inlet of biogas digester, where bacteria breaks down the material and releases biogas.

A rubber pipe connects the biogas digester to the gas stove, where it is used for cooking.

The outlet from the biogas digester lets out the very watery slurry, which can be used as organic fertilizer.

A pressure gage is used to monitor the pressure of the biogas that is available for cooking purposes. A hydraulic chamber is not applied. Instead the plant is pressurized through weight on the gas holder.


The biogas plant has the capacity to hold 1.0 m3 gas and is able to provide enough biogas to cook for 1.5 hours (in total) per day and produces best quality organic fertilizer.

Specialty of this roof top biogas plant

A big plus for this type of plant is the fact that the core parts can be made out of recycled materials. In this case rejected tractor tubes have been used for the digester and gas holder. Piping, gas valve, pressure gauge and stove had to be bought. The total cost of the plant material was $60-70. Assembling time was only about thirty minutes(!).
The empty biogas plant weighs around 15 kg and can be transported easily.

Source: energypedia.info/index.php/TyreTube_Biogas_Plant



Contact Zobayer  for any question

20 villagers to get biogas plants TOBA TEK SINGH

20 villagers to get biogas plants TOBA TEK SINGH

TOBA TEK SINGH: On the directions of Punjab Chief Minister Mian Shahbaz Sharif, agriculture engineering department has started a programme to end energy crisis in all districts. Under this programme biogas plants were being provided to villagers. In this regard, a balloting was held among applicants and 20 names were elected who will be provided biogas plants. DCO Javed Iqbal supervised the balloting while assistant engineer agriculture engineering Mian Azhar-ul-Haq, agriculture engineer Shahid Ameen and district officer livestock Zahid Hussain were present during the balloting.

CM’S SPORTS FESTIVAL: Assistant Commissioner Mushtaq Hussain has directed secretaries of union councils of his tehsil to make chief minister’s sports festival 2012 a success in all union councils. He said the festival will promote sports in rural areas.

Science Project Biogas anaerobic digester (Urdu)

Biogas plant (Anaerobic Digester) Experiment
Habbab Idrees, Sana, and HasanBiogas plant (Anaerobic Digester) Experiment
Science Project Biogas anaerobic digester (Urdu)

Concept The purpose of this project is to discover ways to produce Biogas with alternate sources by using our local resources this project can help students to basics of Anaerobic digestion and production of bio-gas by different organic wastage, basic task is to design, fabricate, and test a simple waste digester and gas collection system.With this system you can examine various facets of the anaerobic digestion process. Background Information What is biogas? Biogas, known as a sour ce of renewable energy, is made mostly of methane. (60-70%) Biogas, as known by many scientific as sociations and universities, is made from…more



Read more: http://paksc.org/pk/diy-projects/item/764-biogas-plant-experiment.html

Manager for the National Biogas program Coordination Unit



VACANCY ANNOUNCEMENT

The Federal Government of Ethiopia has incorporated a National Biogas Programme (NBP) in its rural development plan framework to ascertain the poverty alleviation and sustainable development efforts. The Ministry of Water and Energy (M0WE) is authorised for the overall NBP strategy development and implementation across the country. MoWE is implementing NBP in four regional states namely Tigray, Amhara, Oromiya & SNNPR in close collaboration with SNV — Netherlands Development Organisation, Ethiopia.

To this effect, a National Biogas Programme Coordination Unit (NBPCU) is established at the federal level, which will be coordinating all stakeholders including the regional biogas programmes. NBPCU earmarks regional funds, develops standards, resolves challenges, and facilitates the smoother implementation of the programme at regional levels. The NBP will be run over a five years period up to 2013 including the development, piloting, and dissemination. A total of 14,000 biogas digesters will be constructed across the country in five years.

The NBP is believed to significantly contribute to the Ethiopian rural development policy and strategy, which is based on Agricultural Development — Led Industrialisation and towards raising agricultural productivity, providing household energy while smoothing the energy, environment and rural development aspects.

The first phase of the NBP would disseminate domestic biogas with the purpose to develop a commercially viable market for the biogas sub-sector in the selected four regions, with specific intention to attract and strengthen institutions for the development of a national biogas subsector, increase the number of family sized domestic biogas plants by the 14,000 in the selected four regions, and ensure continued operation of the biogas plants while facilitating accelerated replication & expansion throughout Ethiopia.

The MoWE/NBP is looking for a Manager to the National Biogas Programme Coordination Unit to be based in Addis Ababa.

Key Roles and Responsibilities:

oversee the overall operation of the national and regional biogas programmes and be responsible for all the delegation passed from the M0WE;
ensure and facilitate the timely formulation and approval of strategic plans, annual plans, bi-annual plans, trimester plans and reports;
ensure that NBPCU executes its supervisory and coordination roles over the regions and local stakeholders and partner organizations such that the construction of planned biogas plants takes place following the right procedures and standards and that these plants remain operational;
delegate to regional and local level partners on the actual implementation of the biogas programme and oversee the actual implementation of planned activities within the region:
manage the NBPCU staff such that planned activities and duties! responsibilities of each unit in NBPCU function within expected norms and standards;
ensure proper financial management practices are in place and adhered to best financial management practices upon which the Manager will;
oversee the timely preparation of budgets, timely allocation and transfer of construction contribution funds to biogas construction companies, upon the completion of biogas plants using specified quality standards and upon signing of approval by biogas owners;
approves and co-signs on cheques and delegates the administration and finance officer of NBPCU on the day-to-day financial operation of the programme;
represent the NBPCU and enter agreements with external bodies within the region in the interest of the programme;
make decisions on issues brought to her/his attention by the various partner organizations within the region and at Woreda and local levels;
sign on outgoing letters and receive incoming letters for further channelling to responsible units within the office;
ensure periodic monitoring and planned evaluations are conducted to measure whether expected outputs are achieved and overall impacts of the biogas programme are attained in relation to planned objectives;
chair weekly, trimester, bi-annual and annual meetings;
make final decision on hiring, termination, promotion, training of staff, in consultation with M0WE;
serve as a secretariat for the steering committee at the national level;
work towards building relevant networks with partners and ensures the right image is created for the NBP;
report to MoWE on the basis of delegation! consultation practices as agreed between NBPCU and MOWE.

Key Result Areas:

Biogas Plant Construction and follow up: The actual construction and commissioning of a biogas plant in each of the selected woredas;
Training, Extension and Building Institutional Capacities: The training of internal staff at RBPCU, masons, biogas users/owners, regional and woreda offices staff, external agencies staff, etc. Building the institutional capacity of the RBPCU and also Woreda and local level institutions;
Promotion, Marketing and Demand Creation: Mobilizing government institutions, NGOs, private sectors, MFIs and cooperatives, construction companies/contractors and existing biogas users to promote and market the national and regional biogas programme so as to increase the outreach and enable the construction of the desired number of biogas plants;
Quality Management and Verification: Ensure the right quality is maintained in the construction and use of the plant through known quality management practices such as proper training of masons, sufficient check-up and inspection of newly constructed digesters on plant sizing and other specified parameters supported by after sales and maintenance services and users training;
Research and Development: Research and development to improve the technical performances and efficiency of the biogas digesters; to address socio economic issues such as ability and willingness to pay for biogas digester, gender, improved agricultural productivity and food security; to environmental issues such as resource management and sustainable land use, etc;
Monitoring and Evaluation: M&E to impact measurement. All programme activities are measured and assessed against the targets, and communicated. Problems are identified and possible alternate solutions will be suggested:
Programme Administration and Financial Management: Ensure the overall programme is progressing as planned, and appropriate fund utilisation and the prescribed financial management systems and procedures are adhered;

Position: Manager for the National Biogas program Coordination Unit

Requirements:

Education: Minimum of Masters/Post graduate degrees in Energy and Environment, Development Studies, Economics, Sociology, Management or equivalent and an academic level of working;

Work experience: Minimum of 8 years of relevant working experience with sound portfolio or programme management exposure. S/he needs to have demonstrated ability in leadership skills and proven ability to handle human resources issues. In addition should have experience with giving advice in complex situations and in different contexts.

Knowledge: Broad knowledge of and insights into theories of development focused on structural poverty alleviation, and rural development. Good knowledge of organisational and institutional development processes. Knowledge, expertise and innovative ideas on biogas/renewable energy development and mainstreaming, and private sector development are advantage. Knowledge of local languages is desirable.

Skills: Team player with high networking abilities. Possesses management skills with ability to inspire colleagues, uses coaching techniques whilst being a good communicator, and steer on results.

Other: Computer skills, ability to work in a challenging and dynamic context are necessary.

Duty station: Addis Ababa

Salary: 9,680.00 Allowance: 1,300.00 and Other Benefits

Length of contract: Initially for one year (with possibility of extension)

Address: Interested applicants can send their resume, cover letter and copies of

credentials to:

Ministry of Water and Energy/National Biogas Program Coordination Unit, P.o.Box 5744, Tel 0115159887 Addis Ababa on or before January 23/2012.

WOMEN PROFESSIONALS ARE HIGHLY ENCOURAGED TO APPLY

www.mowr.gov.et/

Source:www.employethiopia.com/index.php?post_id=12206&cat=23

Punjab Agriculture Department will install 1500 biogas plants


Biogas plant in Punjab

 Agricultural Engineering wing of the Punjab Agriculture Department will install 1500 family-sized (15 cubic meter capacity) biogas plants at different places in the province under a programme to promote biogas to meet the domestic energy requirements.
It is hoped that introduction of biogas plants would help meeting the energy crisis as well as reduce the environmental pollution.
While the slurry produced by this plant could be used as fertiliser helping increasing the yield by 20 per cent, said the Punjab Agriculture Minister Ahmad Ali Aulakh.The minister stated that special training has been imparted to agricultural engineers and technical staff, which would then train and guide the growers about installation and operation of biogas plants.
Moreover, the department is also providing facility to select place and analyse quality of water for installation of tube wells.
He said that power drilling rigs facility was also being provided to the growers where water level was very low especially in Barani areas.He was speaking at certificate distribution ceremony of two-day workshop on biogas technology.
The ceremony was also addressed by Director General (Field) Dr Muhammad Yaseen and others.
The ceremony was held at Agriculture Machinery Research Institute (AMRI) Multan, said a spokesman of the department.The minister threw light on various steps being taken by the government for promotion of mechanised agriculture in the province.
He also said that 155 small dams had been constructed in Barani areas to improve under ground sweet water reserves and to provide water to growers for irrigation.He also urged the federal government to keep the provincial government informed about dealers’ network providing imported urea at the rate of Rs 1350 per bag.
Speaking on this occasion Director General (Field Agriculture Department) Dr Muhammad Yaseen said that waste of 54 million cattles found in Pakistan could be used to produce biogas.
He claimed that this waste could produce 25 million cubic meter biogas daily and 51 million people could take benefit of it, while it would also produce 28 million tons of bio fertilisers.
He also disclosed that the agriculture department would work in collaboration with literacy department to create awareness among the growers about use of agricultural machinery.
Courtesy PSC Blog

Infrastructure Development Company Ltd (IDCOL) to install 10,000 biogas plants

Dhaka, Jan 11:  Infrastructure Development Company Ltd (IDCOL) has a plan to install 10 lakh solar home systems (SHSs) and set up 10,000 biogas plants this year. Stating this Wednesday, IDCOL chairman Iqbal Mahmood informed that they have so far installed 12 lakh solar home systems in the country. Iqbal Mahmood came up with the disclosure at a meeting with finance minister AMA Muhith at the latter’s secretariat office. IDCOL board of directors handed over to the finance minister a dividend cheque for Tk 10 crore against the  government’s holdings in the  company.      Muhith appreciated the dynamism and good works of the IDCOL, saying:  “It has done very well… we are proud that we are part of this organisation.”     The minister also pledged continued government support to the IDCOL.    
IDCOL chief executive officer Islam Sharif, its director and finance division secretary Dr M Tareque, IDCOL directors Maj Gen (retd) Amjad Khan Chowdhury and Barrister Nihad Kabir were also present. 

Biogas project Cambodia by CNG Video Report

Biogas project Cambodia supported by Climate Neutral Group

Biogas Plant Model



Anaerobic digestion process Basics

Anaerobic digestion process Basics Anaerobic digestion is the process in which certain microorganisms decompose the organic matter into biogas without the presence of oxygen. The effluent biogas is composed mainly of the following com pounds

  • Methane (CH4) 50 – 65 % (volume)
  • Carbon dioxide (CO2) 35 – 50 % (volume)
  • Moisture 30 – 160 g/m3
  • Hydrogen sulphide (H2 S) 5 g/m

The produced biogas is a colorless, odorless and flammable gas which has an energy content of 37.3 MJ/m3

The percent of m e thane to carbon dioxide varies depending on the input materials (feedstock) and the completeness of the process. The biomss used in this process has high moisture content, such as animal dung, sewage sludge, crop byproducts, and organic waste from household and industry.

Anaerobic digestion process is simply applied energy source. A simple digester consists of a digestion chamber, a dome, an inlet, an outlet f or biogas and an outlet for slurry. The biogas trapped by the dome flows under pressure through the outlet, where it can be used as an energy source. Shows a simple diagram for the anaerobic digester.


The biogas process is a natural process that takes place in  a variety of anaerobic environments, such as the intestinal tract of animals, marine and fresh water sediment, sewage sludge, paddy fields, water logged soils and in the region of volcanic hot springs and deep sea hydrothermal vents.  Anaerobic digestion is also occurred in  the landf ill, where the municipal waste was buried in soil at very low oxygen concentration. The produced biogas (methane) can be collect by pipelines network and utilized as source of energy.

Anaerobic degradation or digestion involves the breakdown of bi omass by a concerted action of a wide range of microorganisms in the absence  of oxygen. The general principle of biomass is the degradation of organic materials (e.g.  carbohydrates,  protein and fats) under anaerobic condition, where bacteria convert the organic material to methane, carbon dioxide and water. Acetate is the most important  source of methane in the an aerobic environment; it formed approxim a tely 70% of the CH4, while, the remaining 30% of me thane is formed directly from hydrogen and carbon dioxide.
The first step in the anaerobic digestion is the hydrolysis of organic compounds into smaller units (e.g. the hydrolysis of proteins into amino acid). The hydrolysis process proceed s at various speeds depending on the com position of the biomass and may in some cases  be a rate  limiting step for the entire biogas process  (e.g. the hydrolysis  process will be rate limiting if  cellulose  is the main component in the biomass).

The second step is fermentation, where the hydrolysis products are absorbed by the fermentative bacteria. Th e products of fermentation process  are smaller com pounds (e.g. acetate, fatty acids,  alcohols and hydrogen). In a well functioning anaerobic digestion process, fermentative bacteria convert the largest part of organic materials to hydrogen,  carbon dioxide and acetate. The remaining part of organic matter will be transformed into other lower fatty acids and alcohols.The opposite figure will occur in case that the fermentation process is not functioning well.
The third step is the oxidization of fermentative products to acetate and the reduction of protons 
to hydrogen. This reaction is called Acetogenesis and it is catalyzed by a special group of bacteria. During this process, a certain amount of energy is produced depending on the type of reaction occurred. At low hydrogen partial pressure, the energy yield from this  process is higher.  
In the fourth step, interspecies hydrogen transfer is occurred. Hydrogen consuming organism s and hydrogen producing organisms are presented in the biomass. Both hydrogen consuming reaction and the hydrogen producing reaction will yield energy. The hydrogen concentration in the culture must remain within certain interval  in order to  make both reactions are running an d thereby producing m or e  energy. Growth of bacteria in f locks increase the absorption of nutrients compared with free living organisms  and thus make the energy utilization is m ore effective. 

The fifth and the last stage is me thane formation. Acetate formed around 70% of the methane, while 30% is formed from hydrogen and carbon dioxide [3]. The different steps of biogas fermentation process are explained in simple diagram,


Source: Department of Environment, Technology and Social Studies   Roskilde University RUC, Denmark  

Advantages and disadvantages of biogas process

Advantages and disadvantages of biogas process
fixed Dom bio-gas plant

  • Anaerobic digestion process for biogas production has several advantages which ma ke it a widely applicable technology: 
  •   The produced Biogas can be used for several  applications, such as heating, lighting, and for generating electricity   
  • Biogas plant is technically reliable and the technology  has been considerably improved  
  • A m e thod to treat organic wa ste from industry and household in an environmentally friendly way, where the residuals are reused in the farmlands as good quality fertilizers. 
  • A high degree of reduction in organic ma tter is achieved with a small increase in the bacterial bio mass
  • Helps mitig ate climate change by  preventing m e thane and others  Green-House Gas GHG from being released to the air. 
  • Reduces water pollution by using feedstock that would end up in rivers and lakes. As well reduce N-eutrophicati on of ground water.  
  • Economically viable when there is a regular  supply of cattle dung and org a nic waste. Requires a small area com pared to the disposal of municipal solid waste (e.g. disposal of waste in Lan dfill ).
  • Improve hygienic conditions. Reduces the annoyance caused by odour from ma nure. The residual sludge applicable as animal fodder or as fertilizer 

In the other hand, this technology is still suffering from technical and econom ic al obstacles, which are limiting its use as an energy source. The m a in disadvantages of using biogas technology are: 
  • The constructions of digesters are costly because they should be built to high structural standards in order to a void cracking, leaking, and corrosion. 
  • Transportation of bioma ss is also costly especially for large-scal e biogas plants and it contributes significantly to the tota l c ost of energy produced from  biogas. 
  • Corrosive  impurities and a lower heating va lue, com pared to na tura l gas,  make biogas unsuitable to be compressed or  injected into a pipeline system.  
  • The effluent biogas contains a small percent of carbon dioxide, water vapour, and hydrogen sulphide. This decrease its efficiency and thereby  its econom ical benefit. 
  • Cost reduction potential  of biogas is low  

Mini Biogas Digester Project Photo Gallery


Mini Biogas Digester Project Photo Gallery 

DIY Mini Biogas plant construct by PSC Members, biogas plant is made by old plastic 20 letter bottle use ase digester and tube us as storage tank. Sana, hassan and habab construct it, video will upload soon..

students can be build that project (Mini Biogas digester ) for science fair or science compititions, students can learn about it working.

complete construction of biogas plant video at: Pakistan Science Club   

  Full Detail Video Biogas plant (Anaerobic Digester) Experiment 

 

Mini Biogas digester construction Diagram, systematic diagram of biogas digester

 

Mini Biogas digester construction photo
Mini Biogas digester construction photo
Team, Mini Biogas digester construction photo
Mini Biogas digester construction photo
Mini Biogas digester construction photo
Hassan. habab, sana with ,Mini Biogas digester

 

Mini Biogas Digester Project by Pakistan science club
Mini Biogas Digester Project construction

Mini Biogas Digester Project pipe cutting

Mini Biogas Digester Project by Pakistan science club
Photos of Biogas plant (Anaerobic Digester) in action

Biogas plant (Anaerobic Digester) Experiment

Concept The purpose of this project is to discover ways to produce Biogas with alternate sources by using our local resources this project can help students to basics of Anaerobic digestion and production of bio-gas by different organic wastage, basic task is to design, fabricate, and test a simple waste digester and gas collection system.With this system you can examine various facets of the anaerobic digestion process. 


Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Habab idrees with Biogas plant (Anaerobic Digester)
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action
Biogas plant (Anaerobic Digester) in action

2000mw power to be generated by biogas plants: Dr Atiur

2000mw power to be generated by biogas plants: Dr Atiur



COX’S BAZAR: Bangladesh Bank Governor Dr Atiur Rahman Saturday said it is possible to generate 2000mw of electricity by bringing the country’s 120,000 poultry farms under biogas management plants.

The central bank chief came up with the disclosure while addressing the inaugural function of biogas plant management as a chief guest at Ramu upazila of the district.

He added: “Poultry industry is the second largest source of grameen employment.”

“With a view to encouraging the people, Bangladesh Bank has taken initiative ever first to invest in the environment friendly biogas plant management programme,” he said.

A poultry farmer named Mujibur Rahman said, “I made a biogas plant by using the wastage of a poultry farm with the technical help of Rahman Renewable Energy Company.”

He added: “A total of Tk 10 lakh has been cost behind the project whereas the Eastern Bank Limited gave me loan of Tk 7.35 lakh.”

“Now I am producing 3500kw of electricity from the plant sized in 50 cubic miters of biogas plant,” he said.

Meeting my needs, I am now planning to supply the excess electricity to the neighboring 15 houses commercially, said Rahman.

Khorshed Alam, SME Chief of Eastern Bank, said the bank has introduced ‘EBL-Nabadoy’ scheme for the development of sustainable business.

One can get Tk 10 lakh loan without deposit under the scheme, he said adding in the meantime, Tk 39 lakh has been disbursed to six projects.

Eastern Bank Managing Director Ali Reza Iftekhar, International Finance Corporation Regional Representative Ziba A Perumal Pillai, Programme Manager Mrinal K Sarkar, Rahman Renewable Energy Company Managing Director Redoanur Rahman were among others present  at the function.

Source:http://www.banglanews24.com

Making renewable energy from cow manure

Making renewable energy from cow manure


A Chinese dairy farm is now the world's largest methane farm. Diary farming is one of the major contributors to pollution in China. A company named Hushian Diary in Northeast China is using methane gas obtained from fermenting cow manure to use it as a renewable energy.


Read more... :http://www.innovateus.net/content/making-renewable-energy-cow-manure

Biogas Digester Model Unit Photos


Biogas Digester Model Unit, July-August 2006 UC Rangla, District Bagh, Azad Jammu & Kashmir
, Pakistan


Trainee - Mushtaq










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