Several modes of comprehensive utilization of biogas

1. "Rice→Pig→Mosh→Rice": Use rice, straw, and grain fodder to raise pigs, produce biogas from the bottom pool of pig manure, cook rice with biogas, turn on the lights, illuminate, return the biogas fertilizer to the field, and add the biogas slurry to the pigs. This model is characterized by short chains, low investment, easy management, quick results, strong adaptability, and easy promotion.

2, "Pig → marsh → fish": This model is suitable for livestock, aquaculture specialized households, pig manure from the pool of biogas production, open the gate valve biogas digester biogas residue and overflow overflow pipe biogas slurry into the pond fish, pond The mud is returned to the field for fertilizer, biogas is used as a fuel for life, and moth can be used to exterminate the fish.

3. “Forage→Rabbit→Pig→Muma→Forage”: This mode is suitable for rabbit farms. Forage grass uses Russian feed and intercropping ryegrass. This way rabbits have green fodder all year round. Rabbit manure feeds pigs after fermentation. The ratio of feed to meat is 5.1:1. Biogas slurry is fed to pigs to feed rabbits. Biogas is used as energy for life. Biogas residues are returned to forage.

4. "Grain field → Pigeon → Pig → marsh → grain field": This model is suitable for professional households based on breeding pigeons. The food is fed to pigeons, the pigeon manure is fermented to feed the pigs, the biogas slurry is used for pigs and pigeons, and the biogas is used. Life energy, biogas residue fertilizer field.

5, "chicken → pig → marsh → vegetable": that pig pen (column) to build a chicken house chicken, chicken droppings down to feed the pig or chicken feces collected after fermentation feed the pig, biogas pit under the construction of biogas, biogas For cooking pig food and lighting, biogas slurry is fed to pigs or foliar fertilizers to spray vegetables, and the biogas residue is returned to the ground to grow vegetables. The greatest feature of adopting this model is the ability to make full use of time, space and labor. To achieve a virtuous cycle of "promoting vegetables with vegetables, promoting vegetables with pigs, and promoting pigs with pigs".

6, "Pig → marsh → mushroom": that is, the production of biogas from the lower pool of pig manure, biogas residue cultivation of edible fungi, waste bacteria residue field, add biogas slurry to raise pigs. This model is more suitable for economically underdeveloped areas and can help farmers quickly get out of poverty.

7, "chicken → pig → marsh → hatching chicken": chicken manure feed pigs, pig manure pool, biogas used for hatching chickens, biogas residue feeding clams, biogas slurry species of green feed crops, clams and green feed to feed chickens and pigs.

8, "worse → pig → marsh → electricity": after the waste of wine to feed the pigs, waste water and pig manure from the next pool of biogas, biogas production and winemaking power processing, biogas residue fish or fertilizer.

9. "Solar heating circle feeding pigs → digester pool → storage fertilizer tank → water cellar → orchard": The supporting model is suitable for the drought-prone and winter cold Weibei arid area. The water cellar and drip irrigation system in the orchard, together with the grass cover, can play a role in protecting the drought, increasing the grass and promoting the livestock, and the fertilizer field to improve the soil.

A biogas digester left to plant the right aquaculture will not only reduce the cost of planting and increase economic efficiency, but also solve rural energy problems. The living environment and ecological benefits have also been improved and improved accordingly. It can be seen that efficient eco-agriculture should start from the biogas tank.

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