Upload
ayessa-mae
View
533
Download
2
Tags:
Embed Size (px)
Citation preview
Biogas / Biomass
Group 7
I. Brief Description
Ayessa Mae Macale
BIOGAS
Biogas is a mixture of methane and
carbon dioxide, produced by the
breakdown of organic waste by
bacteria without oxygen (anaerobic
digestion).
BIOMASS
Biomass is any
organic matter —
wood, crops,
seaweed, animal
wastes — that can
be used as an
energy source.
Biomass is all kinds of
fuel from living sources.
Biogas is methane.
II. How it WorksJulie Ceriola
BIOGAS
BIOGAS
BIOMASS
III. AdvantagesEdnaliza Ringad
ADVANTAGES OF BIOGAS
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.
ADVANTAGES OF BIOGAS
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.
ADVANTAGES OF BIOGAS
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.
ADVANTAGES OF BIOGAS
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.
ADVANTAGES OF BIOMASS
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.
ADVANTAGES OF BIOMASS
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.
ADVANTAGES OF BIOMASS
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.
IV. Disadvantages
Jenifer Vista
DISADVANTAGES OF BIOGAS 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
DISADVANTAGES OF BIOGAS
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
DISADVANTAGES OF BIOMASS
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
DISADVANTAGES OF BIOMASS
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
DISADVANTAGES OF BIOMASS
maintaining a supply of the waste product
in sufficient quantities to maintain energy
production can be difficult
burning produces greenhouse gases
global warming
V. Sites in the Philippines
Sarah Borigas
BIOGAS
1. Abra
2. Mountain Province
3. Baguio City
4. Pangasinan
5. Pasay City
6. Batangas City
7. Quezon Province
8. Cebu
9. Palawan
BIOMASS
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
Other Nationsthat uses
Biogas & Biomass
Biogas Gross Production (2005)
United St
ates
United Kingd
om
German
ySp
ain
Australi
a
Canad
aJap
an
Netherla
nds
Denmark
South
Korea0
20,00040,00060,00080,000
100,000120,000140,000160,000
159,848
60,302 59,992
13,269 12,730 8,038 5,950 5,095 3,830 3,406
Terajoules
Biomass in Developing Countries
Nepal Malawi Kenya India China Brazil Egypt0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
95% 94%
75%
50%33%
25% 20%
References
• http://www.need.org/needpdf/infobook_activities/SecInfo/B
iomassS.pdf
• http://www.youtube.com/watch?v=but5ntRMQQc
• http://www.youtube.com/watch?v=n_I6bbc5ZT0
• http://www.ianswer4u.com/2012/02/biomass-energy-advant
ages-and.html#ixzz25FkX2v3W
• http://www.wisegeek.com/what-is-biogas-energy.htm
• http://www.seps.sk/zp/fond/dieret/biomass.html
• http://www.nationmaster.com/graph/ene_bio_gro_pro-ener
gy-biogas-gross-production