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Heavy metal ion removal
from wastewater using
sodium alginate
Presented by
Hifsa
Why remove heavy metal ions?
•
•
•
•
Heavy metal ions are toxic.
They accumulate inside living organisms’ bodies and disturb normal metabolic
reactions.
250,000 children die from water related diseases every year in Pakistan.
Only 25.61% of population of Pakistan has access to clean drinking water.
Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
How to detect heavy metal ions in wastewater?
1)
2)
3)
Heavy metal ions can be detected from wastewater using following techniques:
Atomic Absorption Spectrometry
Inductively Coupled Plasma Optical Emission Spectrometry
Inductively Coupled Plasma Mass Spectrometry
How to remove heavy metal ions?
•
•
Various methods are used to remove metal ions from wastewater
However, adsorption is the cheapest and usable method on largest scale.
Easy ways to earn; lottery to fill your pockets; https://bit.
ly/3s5hkGE
Why Sodium Alginate?
•
•
•
•
•
•
Sodium alginate is a natural polysaccharide obtained from brown algae.
Possess water retaining ability
Can adsorb heavy metal ions
Can form composites with other polymers
Do not produce secondary pollution
regeneratable
Sodium alginate adsorbents:
•
•
•
•
•
SA gelatin composite
SA Biochar composite
SA chitosan carboxymethylcellulose composite
Chitosan alginate composite
Graphene oxide carbonaceous composite
Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
Downsides of Sodium Alginate:
•
•
•
Strong hydrophilic character
Low thermal stability
Poor mechanical strength
How to overcome downsides of SA?
•
•
Addition of following increases mechanical strength, stability, porosity, surface composition,
pore size, pore volume of SA adsorbent.
Polymers
Nanocomposites
Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
Future FOCUS
•
•
•
•
•
Specific, suitable, metal selective adsorbent synthesis
Cheap adsorbent synthesis
Natural component containing adsorbent synthesis
Synthesis of adsorbents that do not give rise to secondary pollutants
High surface area containing adsorbent
Thank you

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Removal of heavy metal ions with sodium alginate

  • 1. Heavy metal ion removal from wastewater using sodium alginate Presented by Hifsa
  • 2. Why remove heavy metal ions? • • • • Heavy metal ions are toxic. They accumulate inside living organisms’ bodies and disturb normal metabolic reactions. 250,000 children die from water related diseases every year in Pakistan. Only 25.61% of population of Pakistan has access to clean drinking water. Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
  • 3. How to detect heavy metal ions in wastewater? 1) 2) 3) Heavy metal ions can be detected from wastewater using following techniques: Atomic Absorption Spectrometry Inductively Coupled Plasma Optical Emission Spectrometry Inductively Coupled Plasma Mass Spectrometry
  • 4. How to remove heavy metal ions? • • Various methods are used to remove metal ions from wastewater However, adsorption is the cheapest and usable method on largest scale. Easy ways to earn; lottery to fill your pockets; https://bit. ly/3s5hkGE
  • 5. Why Sodium Alginate? • • • • • • Sodium alginate is a natural polysaccharide obtained from brown algae. Possess water retaining ability Can adsorb heavy metal ions Can form composites with other polymers Do not produce secondary pollution regeneratable
  • 6. Sodium alginate adsorbents: • • • • • SA gelatin composite SA Biochar composite SA chitosan carboxymethylcellulose composite Chitosan alginate composite Graphene oxide carbonaceous composite Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
  • 7. Downsides of Sodium Alginate: • • • Strong hydrophilic character Low thermal stability Poor mechanical strength
  • 8. How to overcome downsides of SA? • • Addition of following increases mechanical strength, stability, porosity, surface composition, pore size, pore volume of SA adsorbent. Polymers Nanocomposites Easy ways to earn; lottery to fill your pockets; https://bit.ly/3s5hkGE
  • 9. Future FOCUS • • • • • Specific, suitable, metal selective adsorbent synthesis Cheap adsorbent synthesis Natural component containing adsorbent synthesis Synthesis of adsorbents that do not give rise to secondary pollutants High surface area containing adsorbent