13. provides a non-polluting and renewable source of
energy.
efficient way of energy conversion (saves fuel wood).
saves women and children from drudgery of
collection and carrying of firewood, exposure to
smoke in the kitchen, and time consumed for
cooking and cleaning of utensils.
14. produces enriched organic manure, which can
supplement or even replace chemical fertilizers.
leads to improvement in the environment, and
sanitation and hygiene.
provides a source for decentralized power
generation.
leads to employment generation in the rural areas.
15. household wastes and bio-wastes can be disposed of
usefully and in a healthy manner.
the technology is cheaper and much simpler than those
for other bio-fuels, and it is ideal for small scale
application.
dilute waste materials (2-10% solids) can be used as in
feed materials.
any biodegradable matter can be used as substrate.
16. anaerobic digestion inactivates pathogens and
parasites, and is quite effective in reducing the
incidence of water borne diseases.
environmental benefits on a global scale: Biogas
plants significantly lower the greenhouse effects on
the earth’s atmosphere. The plants lower methane
emissions by entrapping the harmful gas and using
it as fuel.
17. renewable source of energy.
comparatively lesser pollution generating energy.
helps in cleanliness in villages and cities.
provides manure for the agriculture and gardens.
there is tremendous potential to generate biogas
energy.
cheaper and reliable.
18. it can be generated from everyday human and
animal wastes, vegetable and agriculture left-over
etc.
recycling of waste reduces pollution and spread of
diseases.
heat energy that one gets from biogas is 3.5 times
the heat from burning wood.
19. because of more heat produced the time required for
cooking is lesser.
pressure on the surrounding forest and scrubs can be
reduced when biogas is used as cooking fuel.
more cost effective means of acquiring energy as
compared to oil supplies.
growing biomass crops use up carbon dioxide and
produces oxygen.
21. loss of the organic waste for compost or fertilizer
very limited in the quantity of electricity it can
produce on the global scale
little or no control on the rate of gas production
encourage deflation of goods prices
bring about high corruption level
22. pollution would be on the increase both sound, air,
& water pollution
food shortage
obnoxious smells
degasification increase the risk of evaporation of
ammonia
it contains some gases as impurities
23. agricultural wastes will not be available if the basic
crop is no longer grown
additional work is needed in areas
land used for energy crops maybe in demand for
other purposes
some biomass conservation projects are from animal
wastes & are relatively small & therefore are limited
24. research is needed to reduce the costs of production
of biomass based fuels
major cause of pollution
expensive to install technology to process & recycle
wastes
use up too much land
25. maintaining a supply of the waste product in
sufficient quantities to maintain energy production
can be difficult
burning produces greenhouse gases
global warming
27. 1. Abra
2. Mountain Province
3. Baguio City
4. Pangasinan
5. Pasay City
6. Batangas City
7. Quezon Province
8. Cebu
9. Palawan
28. Biomass Power Generation
1. Mina, Iloilo
2. San Leonardo, Nueva Ecija
3. San Pedro, Laguna
4. San Jose, Lipa City
5. Natividad, Nueva Ecija
6. San Vicente, Sumilao Bukidnon
