THIS PRESEATION DEALS WITH HOW THE ALGAES ARE USED IN A PHOTO-BIOREACTOR TO GENERATE ENERGY.

1. PHYCOLOGY PRESENTATION
ON
USE OF ALGAE IN PHOTO-BIOREACTOR
NAME- SAKSHI PRIYA
CLASS- M.Sc
SEMESTER- I
SESSION- 2021-2023

2. ALGAE
Algae are simple plants that can
range from the microscopic
(microalgae), to large seaweeds
(macro algae), such as giant kelp
more than one hundred feet in
length.
Most microalgae grow through
photosynthesis – by converting
sunlight, CO2 and a few nutrients,
including nitrogen and phosphorous,
into material known as biomass
FIG- ALGAL BLOOM

3. Photo-bioreactors is an apparatus in which ‘The prefix “photo”
particularly describes the bio-reactor's property to cultivate phototrophic
microorganisms, or organisms which grow on by utilizing light energy.
These organisms use the process of photosynthesis to build their own
biomass from light and carbon dioxide.
Photo bioreactor or PBR, is the controlled supply of specific
environmental conditions for respective species.
Photo bioreactor allows much higher growth rates and purity levels than
anywhere in natural or habitats similar to nature.

5. Algae grows where no other crop will
Growing algae is easy
It can be grown in almost any climate or environment
Creating good growing conditions for algae is very simple
Algae can be grown on wasteland that is not arable for corn, wheat, beans or
other crops.
It can also use water that is unsuitable for crops.
Algae bioreactors scale out effectively
The mass production of microalgae does not require large areas or fertile
lands and maximizes water savings to its cultivation.

6. *

7. PHOTOBIOREACTOR HARVEST TANK FLOCCULATION
ANAEROBIC
DIGESTOR
METHANE(USED
AS FUEL)
GRAVITY
FILTARTION
RENEWABLE DIESEL,
RENEWABLE JET
FUEL
SOLAR DRIER
LIPID
EXTRACTIO
N
RENEWABLE JET
FUEL, RENEWABLE
DIESEL
RESIDUA
BIOMASS
ANIMAL
FEED, FISH
FOOD

8. BIOFUEL
ANIMAL FEEDS
AQUACULTURE FEEDS
FOOD SUPPLEMENTS
NEUTRACEUTICALS
PHARMACEUTICALS
FIG-The algal biomass, a powerful source
of energy

9. PROBLEMS-
1. Concerned with CO 2 released to the atmosphere.
2. CO 2 scrubbing equipment is expensive
3. CO 2 storage is not economically feasible
SOLUTION- Algae converts carbon dioxide into biomass using
sun, water, and inorganic nutrients, including carbon dioxide.
1) Current petro based fuels are unsustainable and
increasingly expensive
SOLUTION-Biofuels from algae

10. Requires temperature maintenance as they don’t
have transpiration cooling.
Need maximum light exposure.
Subjected to seasonal and daily changes of
temperature and humidity.
Require periodic cleaning due to biofilm formation.
Difficult to maintain.
FIG- PHOTO-BIOREACTOR

11. • A new apartment complex in
Hamburg, Germany, intends to
generate heat, as well as revenue,
from growing the ALGAE.
 . The five-story Bio Intelligent
Quotient (B.I.Q.) building, has a
high-tech facade that looks like a
cross between a Mondrian painting
and a terrarium but is actually a
vertical algae farm.
 It relies entirely on renewable
energy, promise that their
pioneering energy system will
harvest fast-growing algae to
create biofuel, produce heat, shade
the building, abate street noise and
make history.
Fig- The Bio Intelligent Quotient building in Hamburg,
Germany

12. Their windows contain micro-algae
which converts sun’s energy into
oily lipid molecules and gases which
are used to create energy.
The algal tanks undergoes
photosynthesis whole day producing
oxygen and also providing shade
from the sun to the residents.
Thus, excessive amount of algae is
produced which increases algal
biomass forming various other
products.
Hence, a renewable source of
energy is formed from this
invention
FIG- A CLOSE LOOK AT THE WINDOWS
OF THE BUILDING

13. *CRYPTOGAMIC BOTANY VOL-1
*https://www.nytimes.com/2013/04/25/business/energy-
environment/german-building-uses-algae-for-heating-and-
cooling.html
*https://www.frontiersin.org/articles/10.3389/fbioe.2014.00090/f
ull
*https://www.slideserve.com/ward/algae-photobioreactor
*https://www.interempresas.net/Energia/Articulos/42002-La-
biomasa-algal-una-potente-fuente-de-energia.html
*https://www.slideserve.com/ward/algae-photobioreactor
*https://en.wikipedia.org/wiki/Photobioreactor
*https://www.youtube.com/watch?v=BhLnrUblXg0