Biogas Production

Biogas is produced from solid media in large quantities by the wastewater processing industry. It is used for process heating and, if a surplus exists, it can be used to generate electricity for export to the local grid. Typical processes involve anaerobic digestion of the sludge and its subsequent drying.

Water crises exist as a result of a lack of processes that make it potable, a lack of distribution systems and a lack of suitable disposal processes. Check out http://www.wateraid.org/uk/ for more information.

Thanks for your suggestion PW

But what i want to know is that technique of biogas production which do not need any type of water in feedstock. ACtually some areas in my country India are extremly dry and the people there have to walk many miles every day for a bucket of water. So they can't use water for biogas production even if they have lot of biomass which can be utilze so I am thinking of research on this kind of technology. Any idea??

Are you looking for information on only biogas, or are you interested in other similar products? I know of a process for making bio-oil from various relatively dry feedstock (5-15% moisture content). It is usually necessary to dry the feedstock prior to processing. If you are interested in this process, let me know.

The link below is to support your hint:

DynaMotive Energy Systems Corp.

Thanks!

Thanks larry ....cool link

Micklars, are you talking about biomass gasifier which uses pyrolysis technique.......??

I don't know much about this. If you are talking about this, I am very interested about this....

If you have something other in your mind please tell me because we will have a lot of biomass in form of deoiled cakes from bioiesel companies in coming years so there must be something to utilize that efficiently.

Thanks in Advance

Biogas depends on bacteria to produce it: that's why the feedstock cannot be too dry. If it is fairly dry, it will still be produced, but very slowly. If it is completely dry, then your wastes will be mummified instead. An alternative solution might be to use graywater or even black water (though I wouldn't recommend using black water unless handled with proper protective equipment) to moisten the feedstock.

thanks Dvader ...... ur suggestion are really helpful..... can u suggest me please if biogas production can be done with Deoiled cake of jatropha or not........instead of cow dung ..........?????? some one says cow dung provide the appropriate strains (i.e. methanogens) to the feed for biogas production. Can't we inoculate deoiled cake with that culture.....?

Thnks in advance

and Merry Xmas to all

"can u suggest me please if biogas production can be done with Deoiled cake of jatropha or not"

Sorry for the late reply. The answer is yes, you can use deoiled jatropha cake. Cow (or any) dung contains natural methanogens, that's why animals, particularly herbivores, fart.