Ben ,.A., amtz, large scale
algae open ponds , national institute of oceanography nature beta technologies
Ltd. Nikken sochosha
easy to grow and produce high yield of energy . the oil
production from algae is feasible and scalable further research is necessary to
unlock full potential algae .it help to solve dependence on fossil fuels.
Further invetmet in private and government sectors
More research and development
Emphasis on use of byproducts
In future there will be a boom in field as conventional
energy resources are limited and day becoming more expensive in future there
Extracts and oils from algae are also used as
additives in various food products.
lattuce is used in Scotland where it is added to soups and salads.
Chlorella, another popular microalgae,
has similar nutrition to spirulina.
widely domesticated marine
algae.It is used in laverbread, a traditional food, and
in Ireland it is collected and made into
a jelly by stewing or boiling .Spirulina
is a blue-green microalgae with a long history as a food source in East Africa
and pre-colonial Mexico.
Algae can be used to make biofuel because
it is fastest growing plant about 50% of their weight is oil as algae contain
15% to 70 % of its dry weight and it is
easy to grow. Ones harvested this oil can be converted into fuel formation and
transportation . yield of algae is quite high
and is conventional crop .
Why algae is used?
In 1942 Harder and VonWitch were
first purpose microalgae be grown as energy source as source of food fuel and
in 1978 to 1996 U.S Department energy funded a program to develop.
Algae fuel oralgal biofuel is an
alternative to liquid fossil fuels that uses algae as its source of energy rich
History of biofuel:-
Butanol fuel and ethanol fuel
Fat and oil
Kinds of biofuels from algae
Pigments and cosmatics formation
Fields in wich algae
Schizochytrium 50-77 dw
Hantzschia DI- 160:66% dw
braunii 29 -75 % DW
Ankistrodesmus TR 28 – 40 % oil of dry
This is list of some high yielding species ,;
Species used in biofuel production :-
There are many
recipes for algal growth media f/2 medium is how ever most common
F/2 medium :
Recipes for algal culture:-
In the first step of
extraction algae oil must be separated from the rest of the algae.The simplest
method is the mechanical crushing . First step is drying the algae, Second step is pressing the
dried algae and in this way oil is extracted.aa process produces 70 to 75 % of
oil from algal plant .then its purification is done sugar and other impurities
are evaporated .this oil can be used directly to engins
Fig. 2 shows
Macro algae is also called as seaweed.It refers to
several species to multicellular,macroscopic,marine algae Seaweeds has variety of purposes and obtained from coastal regions. Due to their large size they do not lend them selves as ultivaction.They
are used in pharmaceutical industries, cosmetics and bioplastics.
Fig.; shows colonies of micro algae.
There are at least
30,000 known species
of microalgae.These are single celled microorganisms. Only a
handful are currently of commercial significance. These are generally cultivated
for extraction of
high-value components such as
pigments or proteins. A
few species are used for feeding
shellfish or other aquaculture purposes.
There are two types of algae:
One of these microorganisms are algae
INTRODUCTION:- Photosynthetic micro-organisms play an important role
in the conversion of solar energy into chemical energy.Photosynthetic conversion is an efficient and alternative process used in industrial fields.Large scale culture systems have been constructed with greatest attention
directed to light supply.