Degradation of municipal wastewater using photocatalytic silica Nano particles

  • Authors

    • Archana Rao P
    • Nirmala .
    https://doi.org/10.14419/ijet.v7i3.29.19202
  • Degradation, Photo Catalysis, Silicon Dioxide Nanoparticles, Sol-Gel, Wastewater.
  • The main objective of this work is to degrade the wastewater by using photo catalytic nano particles. The photo catalytic nano particles works under UV light and degrade the organic compounds that are present in municipal wastewater. The commonly used photocatalytic nano particles are silicon dioxide, platinum, silver nanoparticles, zinc oxide etc. These nano particles are produced by different methods like sol-gel process, chemical vapor deposition etc. and are characterized by different characterization techniques like X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Studies (EDS), Transmission Electron Microscopy (TEM) etc. In the present study silicon dioxide (SiO2) nanoparticles were synthesized by sol gel technique and characterized using SEM and XRD. The nanoparticles synthesized were used for the treatment of municipal wastewater. The degradation of the wastewater is evaluated based on the parameters such as degradation temperature, wastewater concentration, amount of nano particle added and time of degradation. COD analysis was carried to estimate the percentage of degradation of wastewater. It has been confirmed that photocatalytic silica nano particles can be used for the degradation of municipal wastewater. It was also observed that a higher degradation percentage of was obtained by this method as compared to the activated sludge process of treatment.

     

     


     
  • References

    1. [1] M Wilson et al, nanotechnology –basic Science and emerging technologies, Chapman & Hall/CRC, (2000).

      [2] Xiaolei Qu et.al, Applications of nanotechnology in water and wastewater treatment, Water Reasearch, Volume 47, Issue 12, 1 August 2013, pages 3931-3946.

      [3] Prashanth V kamath et al. nanoparticles in advanced oxidation processes, Current opinion in colloid and interface science, Volume 7, Issues 5-6, November 2002, Pages 282-287.

      [4] Aarthi, Giridhar Madras, Photocatalytic Degradation of Rhodamine Dyes with Nano-TiO2, Ind. Eng. Chem. Res., 2007, 46 (1), pp 7–14.

      [5] Changchun Chen, Jiangfeng Liu , Ping Liu , Benhai Yu, Investigation of Photocatalytic Degradation of Methyl Orange by Using Nano-Sized ZnO Catalysts, Advances in Chemical Engineering and Science, 2011, 1, 9-14.

      [6] U.G.Akpan, B.H. Hameed, Parameters affecting the photocatalytic degradation of dyes using using TiO2-based photocatalysts: A review, Journal of Hazardous Materials, Volume 170, Issues 2–3, 30 October 2009, Pages 520-529.

      [7] K. Nagaveni, G. Sivalingam M. S. Hegde and Giridhar Madras, Photocatalytic Degradation ofOrganic Compounds over Combustion-Synthesized Nano-SiO2.Environ. Sci. Technol., 2004, 38 (5), pp 1600–1604.

      [8] P. Venkata Laxma Reddy, Ki-Hyun Kim, Yong-Hyun Kim, A Review of Photocatalytic Treatment for Various Air Pollutants, Asian journal of atmospheric environment, vol 5-3, pp. 181-188, September 2011.

      [9] Samuel Hong Shen Chan et al., Recent developments of metal oxide semiconductors as photocatalysts in advanced oxidation processes (AOPs) for treatment of dye waste-water, Journal of chemical technology and biotechnology, Volume 86, Issue 9, September 2011, pages 1130-1158.

      [10] Yana Ruzmanova et al., Photocatalytic treatment of olive oil mill wastewater by magnetic ore titanium dioxide nanoparticles, Chemical engineering transactions, Vol. 32, 2013, 2269-2274.

      [11] Sadott Pacheco et al., Cadmium ions adsorption in simulated wastewater using structured alumina-silica nanoparticles, Journal of non crystalline solids, volume 352, issues 52-54, 15 December 2006, pages 5475-5481.

      [12] Satinder K Brar et al. Engineered nanoparticles in wastewater and wastewater sludge-Evidence and impacts, Waste management, Volume 30, Issue 3, March 2010, pages 504-520.

      [13] Prashanth V kamath et al. nanoparticles in advanced oxidation processes, Current opinion in colloid and interface science, Volume 7, Issues 5-6, November 2002, Pages 282-287.

      [14] .uchi Nandanwar, Purnima Singh and Fozia Zia Haque, Synthesis and Properties of Silica Nanoparticls by SOL-GEL Method for the application in Green Chemistry, material science reaserch India, Vol 10(1), 85-92, 2013.

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    Rao P, A., & ., N. (2018). Degradation of municipal wastewater using photocatalytic silica Nano particles. International Journal of Engineering & Technology, 7(3.29), 409-411. https://doi.org/10.14419/ijet.v7i3.29.19202