How to make use of pig manure biogas
3, the initial concentration of methane tank fermentation concentration should be appropriateThe biogas pool first feeding amount should be 80% if the volume of the pool, because of the temporary lack of raw materials, one-time feeding can not meet the requirements of feeding quantity (most household biogas digester will not have such ample raw materials), water inlet and outlet is more than 15 cm, closed fermentation fermentation. The first feeding the concentration of 6%--10%, if the raw material and water ratio in the digester is difficult to estimate, rather slightly thin, not too thick, otherwise easy to acidification.
2, select the appropriate fermentation materialsBiogas fermentation material is the material basis to produce biogas digesters, in order to ensure the start and fermentation fermentation of raw materials sufficient and stable, in before feeding, fermentation of raw materials need to choose the suitable organic nutrition of cattle and pig manure, sheep manure and so do start. These materials with fine grains, containing low molecular weight compounds have more carbon,, nitrogen is less than 25:1, which belongs to the appropriate fermentation carbon and nitrogen ratio, into the pool after the quick start, gas well. Don't separate with chicken manure and excrement started, these raw materials in biogas bacteria less liquid, easy to acidification, the fermentation is not normal.
1, add enough inoculumIn the new pool charging before or after feeding to collect old biogas pool, biogas residue and biogas slurry pit, FWFPM, black bottom sediment of urban sewage ditch sludge, slaughterhouse sewage sludge, these materials contain abundant methane bacteria, inoculation quantity to reach 10 - 30% of the fermentation of raw materials, the inoculum and material mixing, join in the pool.
The newly built biogas pool from the feed to the process of normal and stable property of gas, called the biogas fermentation start. Biogas fermentation can start smoothly, for to keep the long-term stable operation is very important. Therefore, in order to make the biogas production of new built quickly, gas production, installation material should meet the following requirements:
