As we all know that Heavy metals are contaminants of much environmental apprehension, as they are hazardous to human being and other biota. They are the cause of Disturbing the food chain. for the removal of heavy metals Pphytoremediation technique has been widely used in Pakistan.

1. PHYTOREMEDIATION IN
PAKISTAN FOR THE
EXTRACTION OF HEAVY
METALS

2. “Phytoremediation”
By Tehseen Khalid
FATIMA JINNAH WOMEN
UNIVERISTY, PAKISTAN

3. Introduction; Abstract
Reasons of contamination in soil and water
Need of phytoremediation, plant qualities
and factors affecting it.
Hyperaccumulators
Categories of Phytoremediation
Sunflower Plant species
Outline:

4. Introduction; Abstract:
■ Heavy metals are contaminants of much
environmental apprehension, as they are
hazardous to human being and other biota.
■ Disturbing the food chain

5. Introduction:
■ Phytoremediation is a combination of
two words phyto and remediation
where;
■ phyto is a greek word means plants
and remediation means remedy

6. Introduction:
■ “Phytoremediation is the direct use of
living green plants for in situ, or in place,
removal, degradation, or containment of
contaminants in soils, sludge, sediments,
surface water and groundwater.” (UNEP)

7. Reasons of contamination in
soil and water:
■ Increased urbanization
■ Increased industrialization
■ Misuse of chemicals
■ Lack of awareness
“ACCUMULATION OF
HEAVY METALS IN SOIL
AND WATER”

8. Need of phytoremediation:
A low cost
technique
Useful for treating
a wide variety of
environmental
contaminants
Common
sunflower,
duckweeds,
broad beans,
water
hyacinth
plants

9. Plant Qualities:
■ Ability to accumulate metals
■ Fast growth
■ Widespread highly branched root system

10. Factors affecting Phytoremediation:
■ Type of contamination
■ Soil type
■ Land value
■ Population distribution
■ Extent of contamination

11. Hyperaccumulator:
■ A hyperaccumulator is a plant capable of growing in soils
with very high concentrations of metals, absorbing these
metals through their roots, and concentrating extremely
high levels of metals in their tissues.
■ 400 plant species of metal hyperaccumulator plants
have been reported .
■ Bio concentration Factor
■ 23 plant species only 17 species

12. Categories of Phytoremediation
■ Phytoextraction
■ Phytodegradation
■ Rhizofiltration
■ Phytostabilization
■ Phytovolitization

14. Use of SUNFLOWER
(HELIANTHUS ANNUUS L.)
■ Used for the accumulation of Pb and Ni from
the contaminated water of Faisalabad
■ Water contamination due to?
■ sunflowers have a quick growth
■ one month old plants reached the incredible
goal of removing more than 95% of uranium in
24 hours