How to meet the demand of incessant increase of population without compromising the future of earth? Here lies the dreadful challenge.
The world population has risen from 2. But, actually an African consumes 35 times less energy than a North American, an Indian 20 times less and a Chinese 10 times less as well. If energy consumption can be stabilized and lessened because of better energy saving policies applied in haste in advanced countries, the energy consumption of developing countries is continuously in growth.
The most optimistic statisticians estimate that energy increase in the world as a whole could be well evaluated at 50 percent in the next quarter of century. Until now 85 percent of global energy consumption was made available by means of combustible fossils such as coal, fuel oil and gas. But slowly this kind of natural energy resources shall come inexorably to an end one day.
Above all, exploitation of these fuels engenders the emission of CO2 carbon dioxide and the amplification of its spread in atmosphere has become a great threat for the survival of mankind because of the climatic upheaval due to global warming.
Fair enough, everybody is diversifying the energy sources and at the same time adjusting himself according to the local geographical environment. For long time, nuclear power energy development was envisaged by ameliorating protection against the leak of radioactivity, if there is any.
Also, complete control of fusion, aeolian or wind energy, solar energy, geothermal energy and hydroelectric power energy etc. In Nepal it is impossible to rely on rivers because of global warming there will be possibly no water streaming down from the glaciers of the Himalayan mountains in a very short span of time.
Meanwhile, a judicious and efficient brand-new way could be envisaged for the treatment of city garbage by simply sleuthing around everywhere the new methods made available by advanced countries, producing methane gas CH4 through the process of controlled putrefaction which is definitely used with success elsewhere all over the world, thus providing lighting and energy for a whole city. Some of the major ecological token-gestures for energy saving: The rule of "4Rs", namely, 1.
All your electrical apparatus must be put off before you go to sleep because all of them in sleep mode for example; hi-fi chain, tape recorder, television, refrigerator, radio-alarm, computer, washing machine, washer-dryer, dishwasher and ceiling fan etc. Give importance to the label quality of an electrical equipment. For instance, class A apparatus can consume almost 3 times less energy than a class C; equally applicable to the consumption of water and the level of soundproofing.
Use a good thermal insulation of your houses to make the energy saving of about 10 to 30 percent. Prefer train to air flight for your voyage within kilometers. In towns and cities, use public transports such as bus, tramway or tube instead of personal cars. That is one of the ways to produce less CO2 carbon dioxide to alleviate greenhouse effect. To consume with prudence so as to produce less household and industrial wastes and they must be biodegradable. Avoid littering with plastic bags and paper, the sign of unconsciousness of civility of the citizenry.
In near future, hydrogen gas H2 could constitute the principal vector of energy for multitude of utilization; mostly for personal vehicles equipped with batteries to produce power.
Already many world renowned car-makers are ameliorating the output and everybody hopes that very soon H2 shall be the major fuel for mankind. And it is relatively easy to obtain it from the natural sources. This above mentioned society can install the whole plant for the cost of 1. If Nepal adapts such biogas powerhouses by means of joint venture, it shall cost relatively less. Those municipalities that want to get rid of their garbage and at the same time produce energy for lighting from methane gas CH4 could consult the respective Embassy, if need be.
Log on to the following URL to have a preview of the plant concerned:. Tom Congratulations to Nepali Times for covering such an unglamorous subject. Nepal is indeed a model for other countries in propagating biogas, and it is proof of what can be achieved with sustainable aid policy, political will and government commitment. The technology alone was not the answer, it was marrying it with affordable delivery and followup mechanism of organisations like BSP.
Hats off for showing us there are other things happening in Nepal other than politics that are far more important! Welcome to Piple Model Saemaul Village.
Contacts: Nepal Saemaul, Tel. The forestation and reforestation is another area need to be highlighted and encouraged particularly the community forest projects. Nepalese living in high earning societies should be encouraged to help them.
These guys seemed to be engulfed by what is happening in politics and not aware of marvelous works people are doing. All these sectors got a big boost after revolution of These are the projects which benefited from democratization of society and devolution of powers with utilization of local human and natural resources.
Tom is right. These are the areas where we Nepali can be very proud and need to be highlighted. Arthur This is much better than the stupid promotion of individual solar for urban areas elsewhere in this issue. Biogas could be really useful in remote areas. Has anyone looked into generating small amounts of electricity from biogas using small methane fuel cells?
Such fuel cells are available. Although it would be much more expensive than diesel gensets for a reasonable amount of electric power, it might be worth investigating for very small amounts just to charge batteries for radios, mobile phones, mp3 players, white led lamps etc at lower threshold cost than a genset.
Small methane cartridges are being developed with handheld fuel cells to compete with lithium batteries for portable mobile phone rechargers about 25 Watt hour capacity eg this link to Mobion.
Could biogas be used with these? Any links to technical details on Nepal biogas projects? Chandra Gurung My parents in shardanagar chitwan have been using it since 21 years, and they are reluctant to switch to natural gas. Unfortunately, though I know it is a superior form of energy gas consumption, new generations are unlikely to be charmed by it.
May be I will raise one gai, to do puja occasionally just like my mom does, but I don't see myself taking her dung and processing it like my father does.
I am afraid that a generation will pass and we will be back to square one at several places. Fred Johnson Wonderful article highlighting appropriate technology. Biogas Digester System Concerns Releases Nitrogen and ammonia into the atmosphere both of which hazardous Can release Hydrogen Sulfide a very toxic gas Methane released can create explosive atmosphere Should raw materials get into water supply can contaminate the water Transportation is of a concern because methane is explosive although new technology may allow it to be stored in powder form.
Current U. Benefits from Nepal's Prospective Saves from deforestation because main source of Nepals farmers power is wood burning Has created 13, jobs since for those who build these small plants Reduces air pollution because biogas burns cleaner then wood Improves women and girls lives because the plants reduce overall work by about 3 hours then collecting and cooking with fire wood leaving more time for education.
Ecuador Biogas Sewage Project A large education complex called Santa Maria del Fiat did not have proper sewage system and would simply dump waste in open spaces.
This contaminated underground water sources and created sever odors The project built a biogas digester that processed both human and animal waste. Power is also produced in the summer from local farmers animal and vegetable waste The school sells the fertilizer by product and uses the fertilizer in the schools own orchid. Open navigation menu. Close suggestions Search Search.
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Download now. Save Save. Original Title:. Related titles. Carousel Previous Carousel Next. Guide for Estimation of Flaring and Venting Volumes. Techno-economic and Environmental Assessment of P-Cyme. Jump to Page. Search inside document. Biogas Digestion What is Biogas Digestion? History of Biogas Sir Humphrey Davy found that methane was present in the gases that is formed by the Anaerobic Digestion of manure Biogas is used to light up the streets in Exeter, England The Biogas Support program in Nepal wins the Ashden Reward for installing over , Biogas Plants in rural areas.
And a Biogas powered train starts it's service in Sweden Louis Pasteur student, Ulysse Gayon, performed the anaerobic fermentation of manure and water at 35C and obtained liters of Biogas per cubic meter of Manure.
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