Hello everyone, where can I learn good biogas installation technology in the south?

Or in some well-known enterprises to progress faster, Hangzhou energy and environment **** they do biogas is more well-known, have undertaken national projects, from abroad to introduce Lip tank and other production and installation technology, you can visit and learn.

The country with the most advanced biogas technology is Denmark.

The industrial use of biogas in Denmark began in the late 80s. At present, Denmark has established 20 centralized central biogas plants with a capacity of 50-600 cubic meters of raw material per day, as well as 55 individual on-farm biogas plants. These biogas plants have effectively promoted the comprehensive utilization of agricultural resources, regional development and environmental protection through the rational distribution of various regions.

By 2025, Denmark will build an additional 50 new central biogas plants.

The biogas project is funded by the Danish Ministry of Environment and the Ministry of Agriculture, with a total budget of DKK 12 million. The central biogas plant usually uses organic waste from surrounding farms (75% of pigs, cow manure, etc.) and food processing enterprises (25%) as raw materials, which are industrially processed to produce biogas, and then transported to regional gas heating boilers or cogeneration plants, and the remaining materials can be used as good fertilizer. Biogas technology can effectively reduce nitrate emissions, eliminate odors, reduce greenhouse gas emissions, and make the most of organic waste.

Biogas is not only a good energy source**, but also beneficial to agricultural production and environmental protection. In Denmark, the representative large-scale central biogas plants are RIBE, LINTRUP, LEMVIG, etc., with an annual biogas output of about 5 million cubic meters.

There are a lot of small companies, and there are only a few large companies. Hangzhou has good energy, and they have the machine and technology for the coiling of the lipp tank.

What type of biogas to do? Landfill gas I can do. It is made into purified compressed natural gas for vehicles.

In response to the national new energy policy, our company has established a biogas production branch. It is mainly engaged in the site selection, design, operation and maintenance of biogas digesters. Company**:

Let me answer your questions below, and I hope that other colleagues will point out if there is anything inappropriate.

1.The largest investment in household biogas (small) is the fermenter, and the materials used to make the fermenter are: enamel steel plate products, Lip products and concrete technology, and the current general pool is still a concrete pool.

For a family of 4, it is enough to build an 8-square-meter pool. The total investment of the project is 3,000 yuan is enough, and now the pond is built, the state has subsidies, one-third of the state funding, one-third of the local ** funding, one-third of the farmers themselves, and the situation is slightly different in different regions.

2.The household concrete tank basically does not need any equipment, you already have the tank, you can add a submersible sewage pump to discharge the digest and biogas slurry in the fermenter. There are also gas pipelines, biogas appliances and the like, depending on how you arrange them.

3 There are many factors that determine whether the gas production of a household biogas digester is stable. It is mainly determined by the amount of input material, temperature and reaction time. As the material reacts in the pool, the gas production will gradually increase and then gradually decrease, and when the gas consumption is insufficient, you can re-add the material.

Household biogas is generally used for lighting and cooking, and special biogas is needed, etc., and there are many biogas appliances on the market now, such as biogas rice cookers and biogas water heaters. The use of biogas will be gradually expanded.

4 The use of biogas has been mentioned above, the heat production of biogas is similar to that of natural gas, and 1 square meter of biogas is enough for a family of four to use for a day's basic life.

5. There are many experts who have studied the compression of biogas into a liquefied state layer, and the conclusions obtained are basically the same, which is immature in the current situation.

6 Biogas itself is a mixture of gases, methane content generally accounts for 60%-70%, carbon dioxide content accounts for about 30%-40%, and there are some other gases. The methane content of household concrete pools is generally about 65%.

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1 Basic knowledge of biogas.

Biogas and its posture generation process

Biogas is a kind of combustible gas produced by microbial fermentation of organic substances in an anaerobic environment under certain temperature, humidity and pH conditions. Since this gas was first found in swamps, lakes, and ponds, it is called spike nucleus biogas. Biogas contains a variety of gases, the main component of which is methane (CH4).

The process by which biogas bacteria decompose organic matter to produce biogas is called biogas fermentation. According to the role of various types of bacteria in the biogas fermentation process, biogas bacteria can be divided into two categories. The first type of bacteria is called decomposers, which are used to break down complex organic matter into simple organic matter and carbon dioxide (CO2), etc.

Among them, there are those who specialize in breaking down cellulose, called fibrolytic bacteria; There are those that specialize in decomposing proteins, which are called proteolytic bacteria; There are those that specialize in decomposing fat, called lipolytic bacteria; The second type of bacteria is called methane-containing bacteria, commonly known as methane bacteria, which oxidizes or reduces simple organic matter and carbon dioxide to methane. Therefore, the process of turning organic matter into biogas is like the two processes of producing a product in a factory: first, the bacteria decompose and process complex organic matter such as manure, straw, and weeds into semi-finished products – compounds with simple structures; Then there's the methane bacteria that process simple compounds into products – methane.

A family of four can build an eight-cube one, and the main fermentation raw material is sewage feces, and the gas component is methane.

For our family of four, the biogas digester was designed by a person from the local forestry bureau's biogas promotion office, and it seems that he had never heard of him talking about the specific volume of the biogas digester, which is about two meters deep and about two meters in diameter. The overall is basically spherical. Six pigs were raised, three big and three small, mainly to prevent insufficient biogas production when the rotation was noisy, and it is said that agricultural fertilizers such as straw can also be used, but cow dung is best buried in rotation, because the digestive system of the cow rumen causes cow dung to be most suitable for biogas production by biogas-producing bacteria.

Whether the digester can provide enough biogas is not directly related to the volume, but mainly related to the amount of follow-up material and the rolling speed.

Find a few manufacturers to carefully investigate and understand, focus on the use of local users, choose a good one, reliable to learn.

Find your local new energy office and sign up for professional training and a biogas construction certificate.

To learn the finished product of the large scattered, you can find the nearest manufacturer to get celery, carefully investigate and understand, and then study, but be cautious, to understand in the factory, especially to understand the use of local users.

Local Energy Authority, (Biogas Bureau).

The kind that is suitable for building water seals!

The temperature is higher and suitable for building.