Energy sources in rural areas can be supplemented by woody, non-woody agro -residue, and degradable aquatic biomass. Process inputs can give small industries supplying biofuels.
Biogas- a way to solve the sanitation problems.Perfect for taking seminars and classes.
This presentation explains about the objectives, principle, working, advantages and disadvantages of biogas. Requirements to develop a biogas digester and the types of biogas digesters are explained.
Statistical analysis of biogas digesters in the world also mentioned.
Giving out a idea of how much we are capable in using fossil fuels and Biogas and giving an idea of utilization so that economically as well as it will be benefited to environment.
Biogas is produced after organic materials (plant and animal products) are broken down by bacteria in an oxygen-free environment, a process called anaerobic digestion. Biogas systems use anaerobic digestion to recycle these organic materials, turning them into biogas, which contains both energy (gas), and valuable soil products (liquids and solids).
Biogas- a way to solve the sanitation problems.Perfect for taking seminars and classes.
This presentation explains about the objectives, principle, working, advantages and disadvantages of biogas. Requirements to develop a biogas digester and the types of biogas digesters are explained.
Statistical analysis of biogas digesters in the world also mentioned.
Giving out a idea of how much we are capable in using fossil fuels and Biogas and giving an idea of utilization so that economically as well as it will be benefited to environment.
Biogas is produced after organic materials (plant and animal products) are broken down by bacteria in an oxygen-free environment, a process called anaerobic digestion. Biogas systems use anaerobic digestion to recycle these organic materials, turning them into biogas, which contains both energy (gas), and valuable soil products (liquids and solids).
A presentation on non-conventional energy resources i.e. biomass. The energy obtained from biomass can be used to produce biogas which in turn can be used to produce electricity
Waste-to-energy uses trash as a fuel for generating power, just as other power plants use coal, oil, or natural gas. The burning fuel heats water into steam that drives a turbine to create electricity.
A powerpoint presentation on biofuels . Application , manufacture , advantages and disadvantages of biofuels also included . Presentation based on sustainable devolopment . A useful powerpoint presentation for engineering students . GO GREEN . Thank you .
A presentation on non-conventional energy resources i.e. biomass. The energy obtained from biomass can be used to produce biogas which in turn can be used to produce electricity
Waste-to-energy uses trash as a fuel for generating power, just as other power plants use coal, oil, or natural gas. The burning fuel heats water into steam that drives a turbine to create electricity.
A powerpoint presentation on biofuels . Application , manufacture , advantages and disadvantages of biofuels also included . Presentation based on sustainable devolopment . A useful powerpoint presentation for engineering students . GO GREEN . Thank you .
Biomass briquette machine valuable fuel from wasteshreyavaidya
Briquettes are basically formed of coal which is eco friendly and made from divested material. Briquettes are also known
as white coal due to its eco friendly feature.
Biomass for fuel use may be derived from fuelwood and other sources in India. This was a by-product of other primary activities like agriculture, forestry, trees outside forests and food processing. Barriers need to be overcome to develop a sustainable bioenergy system.
Presentation held by Pratik & Vinay at the biogas information seminar in Wageningen, 4 October 2009, organized by the Wageningen Environmental Platform and Community Composting Network
Biomass Energy Sustainable Solution for Greenhouse Gas Emis.docxhartrobert670
Biomass Energy: Sustainable
Solution
for Greenhouse Gas
Emission
A.K.M. Sadrul Islama* and M. Ahiduzzamanb
abMechanical & Chemical Engineering Department,
Islamic University of Technology, Board Bazar, Gazipur-1704, Bangladesh
*Corresponding Author: Email- [email protected]
Abstract. Biomass is part of the carbon cycle. Carbon dioxide is produced after combustion of biomass. Over a
relatively short timescale, carbon dioxide is renewed from atmosphere during next generation of new growth of
green vegetation. Contribution of renewable energy including hydropower, solar, biomass and biofuel in total
primary energy consumption in world is about 19%. Traditional biomass alone contributes about 13% of total
primary energy consumption in the world. The number of traditional biomass energy users expected to rise from 2.5
billion in 2004 to 2.6 billion in 2015 and to 2.7 billion in 2030 for cooking in developing countries. Residential
biomass demand in developing countries is projected to rise from 771 Mtoe in 2004 to 818 Mtoe in 2030. The main
sources of biomass are wood residues, bagasse, rice husk, agro-residues, animal manure, municipal and industrial
waste etc. Dedicated energy crops such as short-rotation coppice, grasses, sugar crops, starch crops and oil crops are
gaining importance and market share as source of biomass energy. Global trade in biomass feedstocks and processed
bioenergy carriers are growing rapidly. There are some drawbacks of biomass energy utilization compared to fossil
fuels viz: heterogeneous and uneven composition, lower calorific value and quality deterioration due to uncontrolled
biodegradation. Loose biomass also is not viable for transportation. Pelletization, briquetting, liquefaction and
gasification of biomass energy are some options to solve these problems. Wood fuel production is very much steady
and little bit increase in trend, however, the forest land is decreasing, means the deforestation is progressive. There is
a big challenge for sustainability of biomass resource and environment. Biomass energy can be used to reduce
greenhouse emissions. Woody biomass such as briquette and pellet from un-organized biomass waste and residues
could be used for alternative to wood fuel, as a result, forest will be saved and sustainable carbon sink will be
developed. Clean energy production from biomass (such as ethanol, biodiesel, producer gas, bio-methane) could be
viable option to reduce fossil fuel consumption. Electricity generation from biomass is increasing throughout the
world. Co-firing of biomass with coal and biomass combustion in power plant and CHP would be a viable option for
clean energy development. Biomass can produce less emission in the range of 14% to 90% compared to emission
from fossil for electricity generation. Therefore, biomass could play a vital role for generation of clean energy by
reducing fossil energy to reduce greenhouse gas emissions. The main barriers to expansio ...
Biomass used intelligently to recover its energy content while disposing waste safely is a solution to climate change challenge and alternate to fossil fuel utilization.
Removing carbon out of the air by bioenergy crops compressedEmiliano Maletta
Growing biomass with regenerative agriculture approaches becomes a solid and commercially mature opportunity by providing biofertilizers and a carbon negative solution and green energy, animal feed and biomaterials access to reduction costs. A growing bioeconomy in next 30 years becomes also influenced by carbon bonds reaching prices between 25 and 75 USD/tCO2 captured and/or sequestered. Biochar production and bio-coal filtering products take value added products between 400 and 2000 USD/ton and feedstock costs range 30 to 120 USD/ton. Coupled thermal applications are part of the system therefore allowing developers to process several fossil based products such as steel, cement or plastics into a lower footprint alternatives. Commercial applications are feasible and available in most markets with high level of demonstration (high Technology Readiness Index).
Climate change adaptation-Facilitation of Forest Dwellers with Special refere...ARM REDDY IFS
Climate Change is happening at a faster pace than expected in the Current Decade and there is a need to mitigate its effect on the Forest Dwellers and at the same time Facilitate the effects of
Measures for prevention, control and abatement of environmental pollution in river Ganga and to ensure continuous adequate flow of water so as to rejuvenate the river Ganga.
The Impact of Artificial Intelligence on Modern Society.pdfssuser3e63fc
Just a game Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?
NIDM (National Institute Of Digital Marketing) Bangalore Is One Of The Leading & best Digital Marketing Institute In Bangalore, India And We Have Brand Value For The Quality Of Education Which We Provide.
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Exploring Career Paths in Cybersecurity for Technical CommunicatorsBen Woelk, CISSP, CPTC
Brief overview of career options in cybersecurity for technical communicators. Includes discussion of my career path, certification options, NICE and NIST resources.
New Explore Careers and College Majors 2024.pdfDr. Mary Askew
Explore Careers and College Majors is a new online, interactive, self-guided career, major and college planning system.
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1. BIOENERGY
1. Biomass: sources, characteristics & preparation:
Sources and classification of biomass available for energy
production.
Chemical composition and properties of biomass
Energy plantations
Preparation of biomass for fuel applications: Size
reduction,
Briquetting of loose biomass, Drying, and Storage and
handling of
biomass.
SOURCES:
The material of plants and animals is called biomass. Bio-energy is energy
derived from biomass. Before the development of technology based on coal,
lignite, crude oil and natural gas (fossil fuels) bio-fuels were the sources of heat
energy.
Woody biomass is product of forestry and trees from different agroforestry activities of smaller intensity. Timber (used for commercial purpose) and
fuel wood are obtained from the forests besides minor forest produce.
Commercial plantations like rubber and plants/trees that yield hydrocarbon can
be a source of byproduct fuel.
Agriculture yields by annual harvest a large crop residue biomass part of
which can be a source of rural biofuels. Plants that grow in wastelands are also
potential energy crops. Nonedible oils from trees are a byproduct liquid fuel.
Non -edible vegetable oils can be used as liquid fuels. By trans-esterification
reaction between the oil and an alcohol in presence of an alkaline catalyst, esters
can be produced that are potential substitute for diesel as engine fuel.
1
2. Sources of three categories of biomass
WOODY
NON-WOODY(cultivated)
WET ORGANIC WASTE
FORESTS
FOOD CROPS
ANIMAL WASTES
WOODLANDS
CROP RESIDUES
MANURE, SLUDGE
PROCESSING RESIDUES
MUNICIPAL
PLANTATIONS
(MULTI-
PURPOSE TREES)
HYDROCARBON
SOLID
WASTE
NONEDIBLE OIL SEEDS
PLANTS
WASTE STARCH &
SUGAR SOLUTIONS
TREES FROM VILLAGE
ENERGY CROPS: (SUGAR
OTHER INDUSTRIAL
COMMON LANDS
CANE BAMBOO)
EFFLUENTS (B O D)
Biomass that is used for producing bio-fuel may be divided into woody, nonwoody and wet organic waste categories. The sources of each are indicated
below.
Animal manures and wastewaters containing organic putrefiable matter can be
treated by anaerobic digestion or biomethanation to produce biogas as a fuel.
Starchy and sugar wastewaters can be substrates for fermentation processes
that yield ethanol which is a potential liquid fuel.
BIOMASS CONVERSION METHODS FOR PRODUCING HEAT OR FUELS:
Controlled decomposition of low value biomass to derive its energy content in a
useful form is the purpose of the bio-energy programs. Biomass energy
conversion may give a mixture of bio-fuel and. by product. Examples are given
below. Bio-fuels derived from biomass can be solid, liquid and gas fuels that can
be used for combustion in specially designed furnace, kiln and burners.
2
3. PRIMARY BIOMASS
SECONDARY
CO-PRODUCT
PRODUCT
WOOD
CHAR (PYROLYSIS)
PYROLYSIS OIL
WOOD
CHAR (GASIFICATION)
PRODUCER
GAS
ANIMAL MANURE
BIOGAS (AN. DIGESTION)
FERTILIZER
Bio-fuel production from primary biomass may utilize thermo-chemical,
biochemical and catalytic conversion processes (see following table) Conversion
process chosen depends on the properties of the primary biomass available.
THERMOCHEMICAL
BIOCHEMICAL
CATALYTIC
CONVERSION
PYROLYSIS
ANAEROBIC
DIGESTION
HYDROGENATION
GASIFICATION
FERMENTATION
TRANS-ESTERIFICATION
COMBUSTION
HYDROLYTIC
ENZYMES
SYN.GAS PROCESS
3
4. Forest resources of India:
India’s is sustaining 16 % of the world’s population and 15 % of its
livestock population on 2.47 % of world’s geographical area and has
just
1 % of world’s forests.
o Forest area cover (i.e., the area notified as forest) in 1997: 76.52 million
hectares, which is 23.28 % of the total geographical area of India.
o The aggregate demand for fuelwood for the country in 1996 was 201
million tonnes, i.e., 213.8 kg per capita per year for a population of 940
million. The current sustainable production of fuelwood from forests is 17
million tonnes and from farm forestry and other areas is 98 million tonnes.
There is a deficit of 86 million tonnes of fuelwood, which is being removed
from the forests as a compulsion.
o Forest resource base has tremendous pressure on it and availability is not
catching up with demand for firewood. World Environment Day: June 5
o State Forest Departments and Community based organizations have Joint
Forest Management Programs to prevent degradation and to regenerate
forest areas.
Distribution of forest areas in States:
o In Andaman & Nicobar area, forests occupy 86.9% of the total
geographical area, whereas in Haryana, forests occupy 3.8%.
o Arunachal Pradesh, Himachal Pradesh, Manipur, Mizoram, Nagaland and
Tripura have over 50% of their land areas under forests while Gujarat,
Jammu & Kashmir, Punjab & Rajasthan have less than 10%. The forest in
other states range between 10 and 50 % of their land areas and the per
capita forest area of India is 0.07 hectares.
4
5. Causes of deforestation:
o Exponential rise in human and livestock population puts increasing
demand on land allocation to alternative uses such as agriculture,
pastures, human settlements and development activities.
o Insufficient availability of commercial fuels in rural areas as well as the
lack of purchasing power of the rural poor and urban slum dwellers makes
them dependent on firewood and wood char as fuels for cooking.
Energy Crisis of Rural and Urban poor in India:
o Nearly 75% of the rural population of India is dependent on bio-fuels
(firewood, agricultural residues, and cow dung) for meeting 80% of their
energy needs. Similarly the urban poor, including the slum dwellers who
constitute 25 – 30% of the urban population are heavily dependent on biofuels. This is because of their low purchasing power and limited availability
of the commercial fuels-kerosene and LPG.
Consequences of inefficient and high consumption of wood biomass for
energy:
o Destroying biomass resources at a rate faster than that of their
regeneration may lead to depletion of forests and desertification.
o Forests, which are earth’s largest depository (sink) of carbon dioxide,
diminish the green house effect. Growing gap between biomass
consumption and regeneration leads to a crisis of sustainability.
WOODY BIOMASS USE SHOULD BE A BALANCED & EFFICIENT
ONE
o TECHNOLOGICAL INNOVATION ON BIOMASS MUST CONCENTRATE
ON:
IMPROVING ITS PRODUCTION, TRANSFORMATION AND
APPLICATIONS FOR ENERGY.
5
6.
WOOD BIOMASS IS AN ENDANGERED LIFE SUPPORT
SYSTEM.
IT SHOULD BE UTILISED IN A SUSTAINABLE WAY.
TREES / WOOD: Leucaena leucocephala (Subabul) (50 m3/ha/year)
Acacia sp
Casurina sp
Derris indica (Pongam)
Eucalyptus sp
Sesbania sp
Prosopis juliflora
Azadiracta indica (Neem)
HYDROCARBON PLANTS: Euphorbia group
Euphorbia Lathyrus
OIL PRODUCING SHRUBS:
Euphorbia Tirucali
Soyabean
Sunflower
Groundnut
6
7. Environmental impact of biomass utilization for energy:
In developing countries, trees are often cut down because they are the only
source of fuel for the population. This can lead to environmental damage. The
habitats of wild animals are destroyed. Soil is eroded because tree roots are no
longer present to bind it together. This soil may be washed down into rivers,
which then silt up and flood. But the destruction of trees and forests is a
worldwide environmental problem with deforestation accounting for 18% of the
greenhouse effect today. New trees must
replace the ones that are cut down if we are to protect the global climate and the
lives of people in the developing countries.
Reference: Forests as biomass energy resources in India by B. N. Dwivedi and
O. N. Kaul in Biomass Energy Systems, Edited by P.Venkata Ramana and S. N.
Srinivas,
British Council and T E R I, N. Delhi, 1996.
Energy Plantation:
Growing trees for their fuel value on ‘Wasteland’ or land that is not usable for
agriculture and cash crops is social forestry activity. A plantation that is designed
or managed and operated to provide substantial amounts of usable fuel
continuously throughout the year at a reasonable cost may be called as ‘energy
plantation’
Suitable tree species and land with favorable climate and soil conditions of
sufficient area are the minimum resource required. Depending on the type of
trees, the tree life cycle, the geometry of leaf bearing branches that determines
the surface area facing the sun, the area required for growing number of would
be evaluated. Combination of harvest cycles and planting densities that will
optimize the harvest of fuel and the operating cost, are worked out. Typical
calorie crops include 12000 to 24000 trees per hectare.
7
8. Raising multipurpose tree species on marginal lands is necessary for
making fuel wood available as well as for improving soil condition. Trees for fuel
wood plantations are those that are capable of growing in deforested areas with
degraded soils, and withstand exposure to wind and drought. Rapid growing
legumes that fix atmospheric nitrogen to enrich soil are preferred. Species that
can be found in similar ecological zones, and have ability to produce wood of
high calorific value that burn without sparks or smoke, besides having other uses
in addition to providing fuel are the multipurpose tree species most suited for bioenergy plantations or social forestry programs.
AZADIRACTA INDICA (NEEM), LEUCAENA LEUCOCEPHALA (SUBABUL),
DERRIS INDICA (PONGAM), AND ACACIA NILOTICA (Babool) are examples of
tree species for the above plantations.
AGRO-RESIDUES:
Agriculture yields by annual harvest a large crop residue biomass part of
which can be a source of rural bio-fuels.
AGRO-RESIDUE IN INDIA (POTENTIAL AVAILABILITY - 1995-96)
MT = Million tons
Agro-residue
India, MT T.Nadu, MT
Wheat Straw
83.3
9.2
Rice Husk
39.8
3.3
Maize Cobs
2.8
Pearl Millet straw
9
0.6
Sugar Cane Bagasse 93.4
Coconut shell
3.4
0.4
Coconut pith
3.4
Groundnut shells
2.6
0.6
Cotton Stalks
27.3
0.8
Jute Stalks
2.7
8
9. Table: Estimated potential for biomass energy : 1015 J y-1(1015 J y-1 =
320MW) Estimated total potential bio-fuel resources harvested per year for
various countries(1978):
Source
Sudan
Brazil
India
Sweden
U.S.A.
Animal Manure
93
640
890
18
110
Sugar Cane
660
1000
430
---
420
Fuelwood
290
3200
420
160
510
Urban Refuse
5
94
320
23
170
Municipal Sewage
2
11
66
1
5
Other
---
---
---
----
630
Total Potential
1000
4800
2100
200
1800
Present national energy
180
2700
5800
1500
72000
5.5
1.8
0.4
0.13
0.03
consumption
Ratio potential to
consumption
Ref: Vergara, W. and Pimental, D.(1978)’Fuels from biomass’, in Auer, P.,(ed.),
Advances in Energy Systems and Technology, vol.1, Academic Press, New York, pp
125-73
9
10. Estimated quantity of waste generated in India (1999):
Waste
Quantity
Municipal solid Waste
27.4 million tones/year
Municipal Liquid Waste
12145 million liters/day
(121 Class1 and 2 cities)
Distillary (243 nos)
8057 kilolitres/day
Press-mud
9 million tones/year
Food and Fruit processing waste 4.5 million tones /year
Dairy industry Waste
50 to 60 million litres / day
3
(C O D level2 Kg/m )
Paper and Pulp industry Waste
1600m3 waste water/day
(300 mills)
52500 m3 waste water/day
Tannery (2000 nos)
Source:IREDA News, 10(3):11-12, 1999, V.Bhakthavatsalam
Properties of Biomass
Physical Properties:
Moisture Content,
Particle Size and Size distribution
Bulk Density &
Specific gravity
Proximate Analysis:
Moisture Content
Volatile Matter
Fixed Carbon
Ash or mineral content
Chemical composition and heat content:
10
11. Elemental Analysis:
Carbon
Hydrogen
Oxygen
Nitrogen
Sulphur
Higher Heating Value:
Chemical Composition:
Total Ash %,
Solvent soluble %,
Water Soluble %,
Lignin %,
Cellulose %,
Hemi-cellulose %
Wet and biodegradable biomass:
C O D value & B O D value,
Total dissolved solids & Volatile solids
BIOMASS PREPARATION FOR FUEL USE:
Preliminary treatment of biomass can improve its handling characteristics,
increase the volumetric calorific value, and fuel properties for thermo-chemical
processing. It can increase ease of transport and storage.
Examples: CHIPPING, CHOPPING, DRYING, GRINDING, BRIQUETTING ETC.
Fuel wood requires drying in air and chopping for best result in cook stoves. Saw
dust requires drying and briquetting to increase its bulk density. Industrial boilers
require uniformly smaller sizes of wood for feeding their furnaces. Predrying of
biomass to moisture levels of below 20% (oven dry basis) enhances efficiency of
combustion in cook stoves and industrial boilers.
11
12. For production of high or medium pressure steam by using biomass the
best choice of equipment is the water tube boiler. It has a large combustion area
surrounded by banks of vertical water tubes, which makes it suitable for biomass
fuels. Biomass fuels have a high content of volatile matter and lower density and
bulk density compared to solid fossil fuels; as a result , biomass fuels need a
large space (relatively ) above the fuel bed to prevent flaring volatile material
from impinging upon the chamber wall and causing damage to it over a period of
time. Shell boilers are unsuitable for biomass fuels because of the restricted
diameter of the furnace tube and high risk of damage to the tube wall by flame
impingement. Additionally demand for uniform fuel quality and size by shell
boilers are relatively stricter.
Other types of end use equipment that are suitable for size reduced biomass
include cyclone furnaces, fluidized bed systems and the controlled combustion
incinerator. Cyclones furnaces are adaptable to use of wood waste s fuel.
Briquetting technologies:
Reference: ’Biomass feed processing for energy conversion’ P. D. Grover, in
Biomass Energy Systems, Ed. P. Venkata Ramana and S. N. Srinivas , T E R I
and British Council, N. Delhi(1996) pp 187-192
The proven high pressure technologies presently employed for the briquetting of
biomass are by the piston or the ram type press and the screw or the extruder
type machines.
12
13. Both the machines give briquettes with a density of 1-1.2 gm/cc and are suitable
as industrial solid fuels. The screw type machines provide briquettes with a
concentric hole that gives better combustibility and is a preferred fuel. These
briquettes can also be more conveniently deployed in small furnaces and even
cook-stoves than solid briquettes generated by a ram press.
Biomass densification-A solid(fuel) solution. N.Yuvraj, Dinesh Babu, TERI,
New Delhi. TERI Newswire, 1-15 December, 2001, page 3.
13
14. In India, briquettes are mostly made from groundnut shell, cotton stalk, saw dust,
coffee husk, bagasse, mustard stalk and press mud. While the Southern region
of India produces briquettes mostly from groundnut shell and saw dust, Western
and
Northern regions produce bagasse, groundnut shell, cotton stalk, mustard stalk
and press mud briquettes. As a recent addition municipal solid waste is also
densified for use as fuel in process industries (tea, tobacco, textile, chemical,
paper, starch, tyre re-treading, tiles, etc) for thermal applications.
Biomass & Bio-energy 14, no5-6, pp 479-488, 1998
‘A techno-economic evaluation of biomass briquetteing in India’ A.K.Tripathi,
P.V.R.Iyer and Tarachand Khandapal (I I T, N.Delhi) tarak@ces.iitd.ernet.in
Various types of raw materials used for briquetteing are: ground-nut shells,
cotton stalks, bagasse, wood chips, saw dust, and forest residues. Pyrolysed
biomass can also be used. Materials can be fine granulated, coarse granulated
or stalky. Material may be dry or wet with various moisture content. After a
material is dried and crushed the pellets may be formed under pressure with
effect of heat,
Biomass & Bio-energy 18(3):223-228(2000)
‘Characteristics of some biomass briquettes prepared under modest die
pressures’ Chin,O.C and Siddiqui, K.M, Universiti Sains Malaysia,31750,Perak,
Malaysia
kmust@hotmail.com
14