Dear Deepak, thanks for the information. Yours A.D.Karve On Thu, Jan 13, 2011 at 9:45 PM, Deepak D. G. <[email protected]> wrote:
> Dear A.D. Karve, > > My name is Deepak D.G. and I am from Bali Indonesia. > > I just want to add to the number of installed biogas of your design by 7 > units in Bali. > > I finished the installation in the month of august 2010 and they are > running well now. > > Rgsd, > Deepak > >> Message: 1 >> Date: Sat, 8 Jan 2011 11:47:03 +0800 >> From: Anand Karve <[email protected]> >> To: For Discussion of Anaerobic Digestion >> <[email protected]> >> Subject: Re: [Digestion] Renewable Energy World biogas article >> Message-ID: >> <[email protected]> >> Content-Type: text/plain; charset="windows-1252" >> >> Dear Randy, >> I give below information about a small biogas plant developed by us. You >> can >> contact me personally if you want commercial information. >> Yours >> A.D.Karve >> >> >> *ARTI biogas technology* >> >> >> >> *Background* >> >> ? The organisms that produce biogas reside in the intestines of >> animals. They exit from the animal body along with dung. >> >> ? The traditional biogas plants use dung as feedstock. 1 kg dung >> produces about 20 to 30 litres biogas after a fermentation period of about >> a >> month. >> >> ? ARTI scientists argued that since these organisms lived in the >> intestines, they ate what the animals ate. >> >> ? Experiments with human food showed that 1 kg (dry weight) of >> human >> food yielded 600 to 800 litres biogas within a fermentation period of just >> 24 hours. >> >> ? ARTI biogas system, based on human food waste, is about 600 to >> 800 >> times as efficient as the dung based biogas plant. >> >> >> >> *Compact biogas plant by ARTI* >> >> ? Because of lower feedstock requirement, and because it is >> consumed >> rapidly, ARTI biogas plant is small. A 1000 litre digester is sufficient >> for a family. >> >> ? Small size of the plant allows it to be accommodated in any >> available space, even on the terrace of a house. >> >> ? Fabricated from locally available plastic water tanks, it is >> installed in just a couple of hours. It can even be moved around. >> >> ? Food waste is plentifully available in urban areas from >> restaurants, canteens, vegetable markets, fruit juice vendors, flour >> mills, >> oil mills, etc. >> >> ? Therefore, technology is suitable for urban areas. Almost 5000 >> plants of this type have so far been installed in India and abroad. >> >> >> >> *Special features of ARTI biogas plant* >> >> ? Ideal technology for disposal of wet garbage. A 1000 litre plant >> accepts daily about 2 kg wet garbage.** >> >> ? In nature, the methanogens get their food masticated by animals. >> Therefore, food waste must be pulped before introducing it into the biogas >> plant. ** >> >> ? About 10 litres water is needed daily as a carrier of the >> feedstock. It generates daily 10 litres effluent. ** >> >> ? Because food waste gets completely converted into biogas, the >> effluent is watery. It can be recycled or used for watering plants.** >> >> ? In the case of industrial canteens, hostels, resorts and housing >> colonies, the design and size of biogas plants depend on the amount and >> type >> of waste and the available space.** >> >> * * >> >> *A rural biogas plant using green leaves as feedstock* >> >> ? Experiments with green leaves showed that 10 kg pulped green >> leaves produced 800 to 1000 litres biogas. ** >> >> ? However, midribs, veins and petioles accumulate as undigested >> debris inside the digester and ultimately choke the system.** >> >> ? A prototype has been developed from which the accumulated debris >> can easily be removed without stopping biogas production. ** >> >> ? Such a plant can be introduced into rural areas, as growing a >> leafy crop or plucking leaves from existing vegetation is possible. ** >> >> * * >> >> *A method for green leaf production* >> >> ? 50 to 100 sq.m.plot surounded by a skirting of transparent >> plastic >> film is planted with a high yielding multicut fodder species. ** >> >> ? Effluent and leaf debris from the biogas plant provide nutrients >> to this plot. Daily water requirement is between 5 to 8 litres per sq.m. >> ** >> >> ? 1 or 2 sq.m.area is harvested daily. Leafy waste from crops like >> cabbage, carrot, radish, and weeds from the field are also acceptable.** >> >> >> >> *Purification of biogas* >> >> ? Biogas contains volumetrically about 40% carbon dioxide and 60% >> methane. >> >> ? Therefore biogas has a calorific value of only about 4000 >> kcal/kg >> as against about 11000 kcal/kg of pure methane. >> >> ? Storing biogas in a moving drum floating over water removes >> carbon >> dioxide from biogas. >> >> ? 95% pure methane is obtained after 3 days. >> >> >> >> *Biogas as fuel in internal combustion engine* >> >> ? Biogas can replace 100% petrol or kerosene and 80% of diesel. >> >> ? It is quite possible to use biogas in unpurified state in >> internal >> combustion engines. >> >> ? Using it in stationary engines for pumping water or for >> generating >> electricity causes no problems. >> >> ? Using it as vehicular fuel is difficult, because it involves >> compression of biogas and filling it into cylinders. >> >> >> On Wed, Jan 5, 2011 at 3:48 PM, Randy Mott <[email protected]> wrote: >> >> >> > > > > _______________________________________________ > Digestion mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > > for more information about digestion, see > Beginner's Guide to Biogas > http://www.adelaide.edu.au/biogas/ > and the Biogas Wiki http://biogas.wikispaces.com/ > > -- *** Dr. A.D. Karve President, Appropriate Rural Technology Institute (ARTI) *Please change my email address in your records to: [email protected] *
_______________________________________________ Digestion mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org for more information about digestion, see Beginner's Guide to Biogas http://www.adelaide.edu.au/biogas/ and the Biogas Wiki http://biogas.wikispaces.com/
