Disadvantages of biogas?
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First of all it is explosive gas, so you have to take care while working with it. Generating biogas is easy, you require a close chamber and non presence of oxygen and your work is get done. But while storage , you have to take care about the space. It should be open space, Always try to store gas outside the home(store at roof, garden).Second disadvantage is gas density. As compare to LPG, you require more biogas to cook food. So 1 meter3 biogas diagester can generate only 25 minutes of cooking(depend upon the input of diagester and environmental condition etc).
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An unfortunate disadvantage of biogas today is that the systems used in the production of biogas are not efficient. There are no new technologies yet to simplify the process and make it abundant and low cost. This means large scale production to supply for a large population is still not possible. Although the biogas plants available today are able to meet some energy needs, many governments are not willing to invest in the sector.
2. Contains Impurities
After refinement and compression, biogas still contains impurities. If the generated bio-fuel was utilized to power automobiles, it can corrode the metal parts of the engine. This corrosion would lead to increased maintenance costs. The gaseous mix is much more suitable for kitchen stoves, water boilers, and lamps.
3. Effect of Temperature on Biogas Production
Like other renewable energy sources (e.g. solar, wind) biogas generation is also affected by the weather. The optimal temperature bacteria need to digest waste is around 37°C. In cold climates, digesters require heat energy to maintain a constant biogas supply.
4. Less Suitable For Dense Metropolitan Areas
Another biogas disadvantage is that industrial biogas plants only makes sense where raw materials are in plentiful supply (food waste, manure). For this reason, biogas generation is much more suitable for rural and suburban areas
2. Contains Impurities
After refinement and compression, biogas still contains impurities. If the generated bio-fuel was utilized to power automobiles, it can corrode the metal parts of the engine. This corrosion would lead to increased maintenance costs. The gaseous mix is much more suitable for kitchen stoves, water boilers, and lamps.
3. Effect of Temperature on Biogas Production
Like other renewable energy sources (e.g. solar, wind) biogas generation is also affected by the weather. The optimal temperature bacteria need to digest waste is around 37°C. In cold climates, digesters require heat energy to maintain a constant biogas supply.
4. Less Suitable For Dense Metropolitan Areas
Another biogas disadvantage is that industrial biogas plants only makes sense where raw materials are in plentiful supply (food waste, manure). For this reason, biogas generation is much more suitable for rural and suburban areas
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