Biogas technology in Bangladesh

National domestic biogas and manure program
this vedio was explained about how benefits of biogas to the local households who was realized on the traditional cooking and farming. biogas technology was presented in this video

biogas Digester by plastic drum under construction

Biogas Digester under construction

Here is a project that is being tested. A biodigester  which transforms under the action of anaerobic organic waste into methane.

The model presented in this celebration of the environment Sunday, June 3, 2102 was carried out by Worms and the Wisdom and Know-how will be tested and water this week. The objective is to present it to the Fair on June 23 and the first results.
here is pictures of his achievement as well as links for more documentation.

biogas Digester by plastic drum under construction

biogas Digester by plastic drum under construction

biogas Digester by plastic drum under construction

biogas Digester by plastic drum under construction pvc pipe

biogas Digester by plastic drum under construction line

biogas Digester by plastic drum under construction pvc pipe: small drum as Dome

biogas Digester by plastic drum under construction: Drum base cuting

biogas Digester by plastic drum under construction: gas pipe and nosle

biogas Digester by plastic drum under construction: digester and gas holder

biogas Digester by plastic drum under construction: Digester covers with cotton

Biogas plant Digester by plastic drum under construction:Base

Biogas plant Digester by plastic drum

Biogas plant Digester by plastic drum under construction:gas holder or tank

Biogas plant Digester by plastic drum under construction:drilling on gas tank

Biogas plant Digester by plastic drum under construction:Inlet pipe attached

Biogas plant Digester by plastic drum under construction:cotton insulation for temperature maintain in digester

old cotton

Biogas plant Digester by plastic drum under construction

Biogas plant Digester by plastic drum under construction

Some links to learn more:
 Bio gas plant
here a great example of family biodigester to make yourself into a water bottle!
 Pakistan science club's biogas plant

Article source http://foiresavoirfaire.org/spip.php?article234

Related Video

Biogas English and Spanish Video

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Biogas Spanish GTZ



(the German Technical Cooperation (Deutsche Gesellschaft für Technische Zusammenarbeit, GTZ))

Science fair project : bio-waste biogas production

 Courtesy, Ray Hull Human waste, from left, cow manure and food waste produce biogas next to a controlled environment in a science experiment led by California teens. The students found that food waste produced gas at the fastest rate.

 

It was an experimental tale of four B's: biomass, biogas, boys and a blue ribbon.
In May, three eighth-grade honors students from Santiago Charter Middle School in California completed a 21-day study of biogas generated from steer manure, human biosolids and food waste.
The experiment not only had a high gross factor, it earned the 14-year-old young researchers serious science credentials and a first place in the school's first science fair. Courtesy, Ray Hull From left, Charlie Hull, Bradley Warren and Justin Spitzer show off the blue ribbons they received for their project, “Biomass to Biogas,” in the Santiago Charter Middle School science fair. Charlie’s father, Ray Hull, is business manager for Central Region Landfills in Orange County, Calif.

Charlie Hull, Bradley Warren and Justin Spitzer's winning project, "Biomass to Biogas," showed how different types of biomass would generate different amounts of biogas in an anaerobic environment.
"If we change the type of biomass [steer manure, human biosolids and food waste], then we will produce different amounts of biogas," the students said in their report. "Also, we predict food waste will produce the most biogas of the three biomasses."
Bingo!
The trio had measurable success with the experiment facilitated by Charlie's dad, Ray Hull, the business manager for Central Region Landfills, who helped them obtain their raw materials. They collected human biosolids liquid from the Orange County Sanitation District, food-waste slurry from Waste Management Inc. and fresh steer feces from Orange High School's stables.
"We went to [sciencebuddies.org] for ideas about experiments and we chose this because it had the 'ick' factor and involved renewable energy," Charlie said.
From there they donned protective clothing – a hazmat suit, particulate respirator mask, protective face shield and latex gloves – and put the materials into separate plastic bottles. Then they filled the bottles with distilled water to make them anaerobic and covered the mouth of each soda bottle with a rubber balloon to capture any biogas produced.
For the next 21 days, the boys visited the Hull laboratory – aka Charlie's garage – and measured the circumference of balloons in centimeters.
The results: Biogas from human biosolids filled three balloons to an average circumference of 9.16 centimeters. Cow manure filled three balloons to an average circumference of 8.45 centimeters. Food waste filled three balloons to an average circumference of 17.8 centimeters.
The interesting part, Charlie said, was that the steer manure and biosolids began producing biogas in a few days. The food waste sucked the balloons inside the bottle necks.
"On Day 17 and Day 18, the food waste balloons ripped," he said. The boys replaced the balloons and the food waste began generating biogas just two days later and in the end, generated the most biogas of the three biomasses.
The scientific conclusion: All three biomasses generated biogas, but that manure and biosolids generated biogas in an anaerobic environment, while food waste preferred an aerobic environment.
The academic conclusion: A+.
Led by teachers Kim Meier and Dorothy Yan, the biomass project was one of more than 100 science fair projects implementing the scientific method involving a hypothesis, independent and dependent variables, collecting data and presenting it graphically and formulating conclusions about results.
Each team had to give an oral presentation and create visual displays of its scientific findings. Projects were reviewed by more than 35 judges, including veteran scientists, area business professionals and educators.
"The hardest part was all the research ... and the materials were kind of nasty," said Bradley. "There weren't really any surprises; our hypothesis was supported by the data."

FLEXI-BIO GAS PLANT VIDEO

FLEXI-BIO GAS PLANT

 FLEXI-BIO GAS PLANT

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