what is the disadvances of biogas
Answers
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).
Transportation is biggest issue. It is very difficult to transport the bio gas. So if you are looking for commercial purpose than it is very difficult and costly process to store at one place and transport.
Content of the gas :- When you generated biogas , it is not only methane, it also include co2 , H2S, moisture. So if you want to know the content than biogas has 50–60% methane, 30–40% co2, remaining is moisture and other gases. Most harmful is H2S. H2S is not good for health as well as your digester. Because H2S is corrosive and you have more chance to decay your diagester. Even though you can purify the biogas upto 98%.(There are various research papers are already published) and use it. But you require a knowledge to do that.
There are so many other disadvantage but this are the few. If you want to update more on biogas , you can like our facebook page . We are working on cheapest biogas diagester design so can help you for anything.