Removal of Copper (Cu) from Waste Water using
Nanoparticles
Submitted byPriyanka Takhar
Prashant Gautam
Vaibhav Gehlot
2010CEV2926
2014CEV2925
2010CH70189
» Introduction
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High demand of water due to increase in population
High amount of wastewater is generated
The wastewater contains micro-organisms, organics, metals and toxicants
Metals (copper here) are highly carcinogenic
Metals cannot be decomposed or bio-degraded
They have to be removed during treatment
» Removal of copper
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Precipitation
Flotation
Ion Exchange
Electrocoagulation
Adsorption
Adsorption is widely used for the removal of metals because of its simplicity
and effective cost
» Nanoparticles
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The most common adsorbent (nowadays) are nanoparticles
Nanoparticles are particles with size less than 100nm
The advantages of using nanoparticles as adsorbent are High surface area in low volume
 Magnetic characteristics
 Low cost
 Effective contaminant removal even at low concentrations
 Less waste generation post-treatment
Table 3: Comparison between different nano particles
Source
Palanisamy et al., 2013
Nano particle
Magnetic iron oxide
pH
Time taken
Removal
(min)
(%)
2.5
60
95.5
2.5
60
91.6
stabilized by Olive Oil
Magnetic iron oxide
stabilized by MIONs
Flaxseed Oil
Kana et al., 2013
Chitosan Nano-Particles
-
30
100
Liu et al., 2008
Fe3O4 Magnetic
6.4
15
99.7
9.2
4380
99
2.5
120
81
Nanoparticles With Humic
Acid
Sukopová et al., 2013
Zerovalent Iron
Nanoparticles
Predescu et.al., 2012
Maghemite Nanoparticles
Bhargav et al., 2013
Iron (III) Oxide
8
1710
100
7
120
98
5
90
97.6
3
90
98.21
5.5
30
98
Nanoparticle
Xin et al., 2012
Amine-functionalized
mesoporous Fe3O4
nanoparticles
Rafiq et al., 2014
Zinc oxide nanoadsorbents
Magnesium oxide
nano-adsorbents
Pang et al., 2011
Magnetic
Nanoparticle
» Limitations
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Corrosion of metal surface
Reaction by-products
» Future research
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Non corrosive nanoparticles should be more used
Reaction by-products should be minimised
» REFRENCES:
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