1. Removal of Copper (Cu) from Waste Water using Nanoparticles
Submitted by-
Priyanka Takhar 2010CEV2926
Prashant Gautam CEV2925
Vaibhav Gehlot CH70189

2. Introduction 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

3. Removal of copper Precipitation Flotation Ion Exchange
Electrocoagulation
Adsorption
Adsorption is widely used for the removal of metals because of its simplicity and effective cost

4. Nanoparticles 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

5. Table 3: Comparison between different nano particles
Source
Nano particle pH
Time taken
(min)
Removal
(%)
Palanisamy et al., 2013
Magnetic iron oxide stabilized by Olive Oil
2.5 60
95.5
Magnetic iron oxide stabilized by MIONs Flaxseed Oil
91.6
Kana et al., 2013
Chitosan Nano-Particles - 30
100
Liu et al., 2008
Fe3O4 Magnetic Nanoparticles With Humic Acid
6.4 15
99.7
Sukopová et al., 2013
Zerovalent Iron Nanoparticles
9.2
4380 99
Predescu et.al., 2012
Maghemite Nanoparticles
120 81

6. Iron (III) Oxide Nanoparticle 8 1710 100
Bhargav et al., 2013
Iron (III) Oxide Nanoparticle 8
1710
100
Xin et al., 2012
Amine-functionalized
mesoporous Fe3O4 nanoparticles 7
120 98
Rafiq et al., 2014
Zinc oxide nano-adsorbents 5 90
97.6
Magnesium oxide nano-adsorbents 3
98.21
Pang et al., 2011
Magnetic Nanoparticle
5.5 30

7. Limitations Future research Corrosion of metal surface
Reaction by-products
Future research
Non corrosive nanoparticles should be more used
Reaction by-products should be minimised

8. REFRENCES: 
Andra PREDESCU, Avram NICOLAE, 2012, “ADSORPTION OF ZN, CU AND CD FROM WASTE WATERS BY MEANS OF MAGHEMITE NANOPARTICLES”, U.P.B. Sci. Bull., Series B, Vol. 74, Iss. 1, 2012. 
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Fei Ge, Meng-Meng Li, Hui Ye, Bao-Xiang Zhao, 2011, “Effective removal of heavy metal ions Cd2+, Zn2+, Pb2+, Cu2+ from aqueous solution by polymer-modified magnetic nanoparticles”, Journal of Hazardous Materials 211– 212 (2012) 366– 372. 
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9. Koivunen, J. , Siitonen, A. , Heinonen- Tanski, H
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