SYNTHESIS AND CHARACTERIZATION OF NANOPARTICLES FOR THE REMOVAL OF HEAVY METALS FROM DRINKING WATER OF DAMS IN BALOCHISTAN

Main Article Content

Mohammad Shoiab Khan
Manzoor Iqbal Khattak
Nida Kazmi
Adnan Afridi
Munnaza Saeed
Hamid Ullah

Keywords

Material Science, Nanotechnology, Environmental Pollution, Drinking water

Abstract

Abstract


The aim of this research was to investigate the waters of Balochistan dams as a reference for extracting various heavy metal ions. Among the water sources for these dams are shallow groundwater (SG), runoff from a seasonal floodplain rich in lithological rocks, including NaCl, as well as the discharge of effluents and residential wastes (inorganic contaminants).  ZnO particles were synthesized using solid precipitation techniques. The average dimensions of the rod-shaped ZnO particles were 497.34 ± 15.55 nm in length and 75.78 ± 10.39 nm in diameter. These particles exhibited efficient extraction, eliminating over 85% of heavy metal ions such as Cu(II), Ag(I), and Pb(II) after an hour of UV exposure. However, for ions like Cr(VI), Mn(II), Cd(II), and Ni(II), the ectraction rate was less than 15%. The elimination procedures involved the adsorption of metals through oxidation and reduction.  Evaporation significantly influenced the surface groundwater in the saline floodplain, which is periodically transported to the Balochistan dams, as revealed by analyses of water type evolution and surface hydrology. The research region in the present study is typically mildly acidic or mildly alkaline, with the majority of samples aligning with guidelines set by the World Health Organization. However, prolonged usage of this water, given its high salinity, may have a negative effect on soil and grape yield.

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References

1. Bard, AllenJ. (2017). Standard potentials in aqueous solution. Routledge https://doi.org/10.1201/9780203738764

2. Barakat, M. A.( 2011a), New Trends in Removing Heavy Metals from Industrial Wastewater.Arab. J. Chem., 4 (4), 361-377.
3. Chenthamarakshan, C. K. Rajeshwar, E.J. Wolfrum (2000) Heterogeneous photoca¬talytic reduction of Cr (VI) in UV-irradiated titania suspensions: effect of protons, ammonium ions, and other interfacial aspects, Langmuir 16, 2715e2721.
4. Duffus, J. H (2002,). "Heavy Metals"- A Meaningless Term? (IUPAC Technical Report ). Pure Appl. Chem.. 74 (5), 793-807.
5. Foster, W. (1936) Inorganic Chemistry (Niels Bjerrum). J. Chem. Educ., 13 (7), 349.
6. Fu, F. Wang, Q. (2011). Removal of Heavy Metal Ions from Wastewaters: A Review. J. Environ. Manage. 92 (3), 407-418.
7. Guozhong, C.( 2004).Nanostructures & Nanomaterials; Imperial College Press.
8. Hashim, M. A.; Mukhopadhyay, S.; Sahu, J. N.; Sengupta, B.( 2011). Remediation Technologies for Heavy Metal Contaminated Groundwater. J. Environ. Manage.92 (10), 2355-2388.
9. Jadhav, S. V; Bringas, E.; Yadav, G. D.; Rathod, V. K.; Ortiz, I.; Marathe, K. V.( 2015), Arsenic and Fluoride Contaminated Groundwaters: A Review of Current Technologies for Contaminants Removal. J. Environ. Manage. 162, 306-325.
10. Kammerer, J.; Carle, R.; Kammerer, D. R. (2011). Adsorption and Ion Exchange: Basic Principles and Their Application in Food Processing. J. Agric. Food Chem., 59 (1), 22-42.
11. Litter M.I., (2009) Treatment of chromium, mercury, lead, uranium, and arsenic in water by heterogeneous photocatalysis, Adv. Chem. Eng. 36, 37e67.
12. Lofrano, G. (2012.). Emerging Compounds Removal from Wastewater;, Ed.; Springer Briefs in Molecular Science; Springer Netherlands: Dordrecht,
13. Munawar, K. M.A. Mansoor, W.J. Basirun, M. Misran, N.M. Huang, M. Mazhar, (2017) Single step fabrication of CuOeMnOe2TiO2 composite thin films with improved photoelectrochemical response, RSC Adv. 7, 15885e15893.
14. Nordberg, G. F., Fowler, B. A., Nordberg, M., Friberg, L. T.( 2007). Handbook on the Toxicology of Metals, Third Edit.; Eds.; Academic Press Inc.
15. Ozin, G. A.; Arsenault, A. C.( 2006). Nanochemistry: A Chemical Approach to Nanomaterials.Small, 2 (5), 678-679.
16. Patterson, J. M., & McCubbin, H. I. (1987). Adolescent Coping Orientation for Problem Experiences (ACOPE) [Database record]. APA PsycTests. https://doi.org/10.1037/t01546-000
17. Pokrpivny, V. V.; Skorokhod, V. V.( 2008) New Dimensionality Classifications of Nanostructures. Phys. E Low-Dimensional Syst. Nanostructures, 40 (7), 2521-2525.
18. Pollard, S.J.T., Thompson, F.E., McConnachie, G.L. (1994). Microporous carbons from Moringa Oleifera husk for water purication in less developed countries. Water Res., 29(1), 337-347.
19. Quaranta, V. M. Hellstr€om, J. r. Behler (2017) Proton-transfer mechanisms at the watereZnO interface: the role of presolvation, J. Phys. Chem. Lett. 8, 1476e1483.
20. Richards, L.A. 1954 Diagnosis and improvement of saline and alkali soils. Agricultural hand book 60. U.S. Dept. of Agriculture, Washington D.C., 160 p.
21. Roduner, E. (2006). Size Matters: Why Nanomaterials Are Different. Chem. Soc. Rev.35, 583 DOI: 10.1039/B502142C.
22. Ruvarac-Bugar~ci~c, I.A. Z.V. Saponjic, S. Zec, T. Rajh, J.M. Nedeljkovic (2005), Pho-tocatalytic reduction of cadmium on TiO2 nanoparticles modified with amino acids, Chem. Phys. Lett. 407, 110e113.
23. Thein, M.T. S.-Y. Pung, A. Aziz, M. Itoh, (2015) Stacked ZnO nanorods synthesized by solution precipitation method and their photocatalytic activity study, J. Sol. Gel Sci. Technol. 74, 260e271.
24. Tressaud, A (2006), Fluorine and the Environment : Atmospheric Chemistry, Emissions, & Lithosphere; , Ed.; Elsevier.
25. Tu agua (2016) http://www.aigueshorta.es/ESP/16.asp (accessed Aug 28, 2016).
26. Wang, X. W. Cai, Y. Lin, G. Wang, C. Liang, (2010) Mass production of micro/nano-structured porous ZnO plates and their strong structurally enhanced and selec¬tive adsorption performance for environmental remediation, J. Mater. Chem. 20, 8582e8590.
27. Wei, X.; Kong, Y. L.; Hanfan, L.; Tao, H.; Chuntao, S.; Yanxi, Z. (2008) Microwave-assisted synthesis of nickel nanoparticles. Mater. Lett. 62, 2571.
28. WHO, (2011). "Guidelines for Drinking Water Quality 4th edition", Geneva.
29. Worch, E. (2012). Adsorption Technology in Water Treatment - Fundamentals, Processes, and Modeling; De Gruyter: Berlin/Boston,