Joydeep pal BRAINWARE UNIVERSITY DEPT. OF BIOTECHNOLOGY

1. PHYTOREMEDIATION
Presented by: JOYDEEP PAL
STUDENT CODE: BWU/BBT/18/036
TOPIC: Phytoremediation
SUBJECT: ENVIRONMENTAL BIOTECHNOLOGY
REG: NO: 18013000519 of 2018-19
ROLL NO: 18010310021
DATE: 07.05.21

2.  WHAT IS BIOREMEDIATION?
 It is a waste management technique.
 Bioremediation is the process uses
naturally occurring organisms to
breakdown hazardous substances
(contaminants) into less toxic.
 It uses organisms like, bacteria,
fungi…
 Bioremediation is also used to clean
up oil spills or contaminated
groundwater.
Two types:
1. In-situ Bioremediation
2. Ex-situ Bioremediation

3.  PHYTOREMEDIATION:
 Phytoremediation is the bioremediation
process of removing contamination from
soil or water using plants.
 Phytoremediation consists of mitigating
pollutant concentrations in contaminated
soils, water, or air, with plants able to
contain, degrade, or eliminate metals,
pesticides, solvents, explosives, crude
oil…
 There are several different types
of phytoremediation mechanisms. These
are: Rhizosphere biodegradation,
etc.…
 Phyto = Plant
 Remedium = restoring balance.
(SOIL+ROOT+MICROBES)

4.  Important act of phytoremediation:
 6CO2 + 6H2O C6H12O6 + 6O2
(Carbon dioxide) (water) (Glucose) (Oxygen)
The process of photosynthesis takes place in the
mesophyll of the leaves, inside the chloroplasts.
Fig: PHOTOSYNTHESIS

5.  How Does Phytoremediation Work?
 The plant root zone is
referred to as the
rhizosphere, this is
where the action
occurs.
 This soil supports large
populations of diverse
microorganisms. This is
due to chemicals
exuded by plant roots
which provide carbon
and energy for
microbial growth.

6.  TYPES OF PHYTOREMEDIATION:

7.  HEAVY METALS OF PHYTOREMEDIATION:
 Heavy metals:
 Arsenic
 Cadmium
 Lead
 Aluminium
 Beryllium
 Copper
 Iron
 Mercury
 Nickel
 These persist in soils and are toxic to animals even in small quantities.

8.  Advantages & Disadvantages of
phytoremediation:
 Advantages:
 Phytoremediation is cost effective.
 It is suited to remediation of large areas of soil.
 It is environmentally friendly.
 Phytoremediation sites are more aesthetically pleasing
 Phytoremediation sites are low maintenance.
 Disadvantages:
 Phytoremediation is limited to sites with lower contaminant concentrations.
 Tore mediation is restricted to sites with contamination as deep as the roots of
the plants being used.

9.  CONCLUSIONS:
 Phytoremediation is one of the method which can be used to remedy soil
problems in order to achieve sustainable soil.
 The process has many difference forms which will suit different kind of soil
problems.
 Sustainable soil is very important for the continuum of living organisms.
 Some microbes having roles for phytoremediation are: Aspergillus niger,
Penicillium bilaiae, Penicillium sp.
Such iron-oxidizing
bacteria can contribute
to immobilizing
cadmium in soil.

10.  Acknowledgement:
 I would like to thank our respected facultyDr. NirliptaSahaMamfor guide and
support me to work in this kind of interesting topic.