Comprehensive utilization scheme of biogas sludge

Comprehensive utilization scheme of biogas sludge

Biogas is a mixed gas, which contains 60% ~ 70% methane, 30% ~ 35% carbon dioxide, and a small amount of carbon monoxide, hydrogen, ammonia, hydrogen sulfide, oxygen and nitrogen.Biogas, as a quality gas fuel, can not only be used for cooking and lighting, but also widely used in power generation, chicken incubation, silkworm breeding, drying, grain and fruit storage, carbon dioxide fertilization and other production fields.

Biogas cooking: 

the biogas produced by the rural household biogas pond is mainly used for boiling water, cooking and cooking for livestock.

Biogas illumination: 

biogas lamp is a kind of combustion device which changes the chemical energy of biogas into light energy.Especially in remote and remote areas without power supply, biogas is used for lighting.

Biogas lamps fertilize greenhouse vegetable carbon dioxide and increase sunshine:

biogas generally contains 25% ~ 35% carbon dioxide and 50% ~ 70% methane.Methane burns a lot of carbon dioxide and releases a lot of heat.In general, burning one cubic meter of biogas produces 0.975 cubic meters of carbon dioxide.According to the principle of photosynthesis, a certain amount of biogas was burned at a certain point in the plastic greenhouse where vegetables were grown, and the carbon dioxide concentration and temperature in the greenhouse were significantly increased, which could effectively increase the production of vegetables.The vegetative plants applied with co2 were robust, with high chlorophyll content, dark green and shiny leaves, early flowering, more female flowers, less fruit and fruit shedding, and the young leaves were strongly flushed and resistant to disease.

Biogas raising: 

greenhouse raising is a technical measure to solve early planting of rice and to promote early growth and high yield of rice.At present, most greenhouses use coal or fuelwood as heating fuel. Therefore, a large amount of coal or fuelwood is consumed in seedling raising every year, and the cost of seedling raising is relatively high.Using biogas as the heating fuel of seedling greenhouse, cultivating rice seedling is a new technology of comprehensive utilization of biogas. The equipment is simple, convenient to operate, low cost, easy to control temperature, free from seed, quick germination, orderly seedling emergence, high rate of seedling formation and easy to popularize.

Biogas incubation: 

biogas incubation is a method of incubating biogas by burning biogas as a heat source.It has the advantages of less investment, energy saving, less labor, convenient management, and higher birth rate and health rate.
Biogas lamp lighting temperature raising chickens: primary chicks regulation function, foraging ability and adaptability to the natural environment is poor.Therefore, in order to raise a good chick, it is necessary to have a suitable temperature condition to facilitate growth and development.Biogas lamps have the advantages of great brightness, good heating effect, simple regulation and low cost.Using biogas lamp to heat up the chickens can make the chickens grow well and have a high survival rate.

Biogas lamp illumination can improve the egg-laying rate of hens: 

the production practice shows that the use of biogas lamp to artificially light the egg-laying hens, and reasonably control the illumination time and intensity, can make the hens metabolism exuberant, promote the development and maturation of their eggs, and achieve the goal of producing eggs.

Biogas heating silkworm rearing: 

during spring and autumn silkworm rearing, the temperature of silkworm housing should be raised to meet the growth and development of silkworm.The traditional method USES charcoal and coal as heating fuel, and a silkworm seed generally needs 40 to 50 kilograms of coal. Its disadvantages are high cost, inconvenient use, difficult temperature control and easy pollution.Under the same conditions, using biogas to increase temperature and raise silkworm can increase cocoon yield and cocoon grade and increase economic income.

Biogas drying grain and agricultural and sideline products: 

biogas drying grain and agricultural and sideline products have the advantages of simple equipment, easy operation, no smoke and dust generation, cost saving and efficiency.

Biogas preserved fruits and stored grains: 

biogas, as a kind of environmental gas regulating preparation, is used in the storage of fruits and vegetables and the storage of grains and seeds for pest control.For example: 1. The technique of biogas gas regulation preservation of citrus; 2.2. Technology for sealing methane storage for pest control in plastic account;3. Storage technology of sealed biogas gas for grain storage.

Comprehensive utilization of biogas slurry

Biogas fermentation is not only a process of producing biogas energy, but also a process of composting.In this process, plant growth needs nitrogen, phosphorus, potassium and other nutrients are basically kept down, so biogas slurry is a good organic fertilizer.At the same time, there are abundant amino acids, B vitamins, various hydrolytic enzymes, some plant growth factors, substances or factors that can inhibit diseases and insect pests in biogas slurry. Therefore, biogas can also be used to raise fish, feed pigs, feed cattle and control some diseases and insect pests of crops, which has a broad prospect of comprehensive utilization.