Advertisement

China Foundry

, Volume 16, Issue 2, pp 141–146 | Cite as

Recycling of waste foundry sands by chemical washing method

  • Senay BalbayEmail author
Overseas Foundry
  • 22 Downloads

Abstract

This study aims to remove the metals (inorganic and heavy metals) in waste foundry sand (WFS) via chemical washing method. Washed waste foundry sand (WWFS) samples were obtained by using triptych washing successively with 5 M HCl, 5 M H2SO4 and 5M NaOH solutions. Analysis on functional groups, micropores, heavy metals, and inorganic components of WFS and WWFS was carried out by using FT-IR, SEM and XRF. Results show that the concentration values of some inorganic components such as Ca, Fe, Mg, S were decreased, and the maximum removal percentage of these inorganic components are 47%, 19%, 32%, and 8%, respectively. The concentration values for each of the heavy metals of WWFS are below of limit values given in App-3 List of Regulation on General Principles of Waste Management. The removal percentages of Pb, As and Zn elements are 100%, 71%, and 40%, respectively. The findings of this research suggest that WWFS can be used in more applications due to its ability to remove heavy metals and some other inorganic components.

Key words

chemical washing heavy metal pollutants waste foundry sand recycling 

CLC numbers

TG221+.1 

Document code

References

  1. [1]
    Oliveira P E F, Oliveira L D, Ardisson J D, et al. Potential of modified iron-rich foundry waste for environmental applications: Fenton reaction and Cr(VI) reduction. Journal of Hazardous Materials, 2011, 194, 393–398.CrossRefGoogle Scholar
  2. [2]
    Siddique R, Kaur G, Rajor A. Waste foundry sand and its leachate characteristics. Resources, Conservation and Recycling, 2010, 54, 1027–1036.CrossRefGoogle Scholar
  3. [3]
    Sawai H, Rahman I M M, Fujita M, et al. Decontamination of Metal-Contaminated Waste Foundry Sands Using an EDTA-NaOH-NH3 Washing Solution. Chemical Engineering Journal, 2016, doi:  https://doi.org/10.1016/j.cej.2016.03.078.Google Scholar
  4. [4]
    Regulation on General Principles of Waste Management, RGPWM, (05.07.2008, R.G.: 26927), ÇOB, Ankara, Turkey, 2008, https://doi.org/www.resmigazete.gov.tr/eskiler/2015/04/20150402-2.htm.
  5. [5]
    Navarro-Blasco Í, Fernández J M, Duran A, et al. A novel use of calcium aluminate cements for recycling waste foundry sand (WFS). Construction and Building Materials, 2013, 48, 218–228.CrossRefGoogle Scholar
  6. [6]
    Siddique R, Singh G. Utilization of waste foundry sand (WFS) in concrete manufacturing. Resources, Conservation and Recycling, 2011, 55: 885–892.CrossRefGoogle Scholar
  7. [7]
    Rabbii A. Sodium Silicate Glass as an Inorganic Binder in Foundry Industry. Iranian Polymer Journal, 2001, 14: 231.Google Scholar
  8. [8]
    Burgo J A. The Manufacture of Pig Iron in the Blast Furnace. The AISE Steel Foundation, Vol: Ironmaking, 1999, Chapter 10.Google Scholar
  9. [9]
    Balbay S, Acikgoz C. Removal of Pollutants from Waste Foundry Sand by Chemical Washing Method. International Conference on Agricultural, Civil and Environmental Engineering (ACEE-16), Istanbul, Turkey, 2016: 88–91.Google Scholar
  10. [10]
    Kouassi SS, Tognonvi M T, Soro J, et al. Consolidation mechanism of materials obtained from sodium silicate solution and silica-based aggregates. Journal of Non-Crystalline Solids, 2011, 357: 3013–3022.CrossRefGoogle Scholar
  11. [11]
    Gozogul R, Putun E, Tolay M, et al. Enrichment of Seyitomer Bituminous Schists with Mineral Acid Extraction, https://doi.org/www.maden.org.tr.., date of visit: 08.12.2018. (In Turkish)
  12. [12]
    Glasser F P. Chemistry of Alkali-Aggregate Reaction. R. N. Swamy (editor). The Alkali-Silica Reaction in Concrete. Van Nostrand Reinhold, 1992: 30–53.Google Scholar
  13. [13]
    Adelman J G, Elouatik S, Demopoulos G P. Investigation of sodium silicate-derived gels as encapsulants for hazardous materials — The case of scorodite. Journal of Hazardous Materials, 2015, 292: 108–117.CrossRefGoogle Scholar
  14. [14]
    Miguel E R, Ippolito J A, Leytem A B, et al. Analysis of total metals in waste molding and core sands from ferrous and non-ferrous foundries. Journal of Environmental Management, 2012, 110: 77–81.CrossRefGoogle Scholar
  15. [15]
    Kaur G, Siddique R, Rajor A. Properties of concrete containing fungal treated waste foundry sand. Construction and Building Materials, 2011, 29: 82–87.CrossRefGoogle Scholar
  16. [16]
    Stanley R, Samson Nesaraj A. Effect of Surfactants on the Wet Chemical Synthesis of Silica Nanoparticles. International Journal of Applied Science and Engineering, 2013, 12: 9–21.Google Scholar
  17. [17]
    Khatiri R, Reyhani A, Mortazavi S Z, et al. Preparation and characterization of Fe3O4/SiO2/APTES core-shell nanoparticles. In: Proceedings of the 4th International Conference on Nanostructures (ICNS4), Kish Island, I. R. Iran, 2012: 1456–1458.Google Scholar
  18. [18]
    Shokri B, Abbasi Firouzjah M, Hosseini S I. FTIR analysis of silicon dioxide thin film deposited by Metal organic-based PECVD. https://doi.org/www.ispc-conference.org/ispcproc/papers/791.pdf.
  19. [19]
    Ulucay I E. Natural Compounds Usnic Acid And Naringenin Silica-Gel Bonding and Synthesis of Metal Complexes: Solid Phase Extraction Properties and Investigation of Catalytic Activities. MSc. thesis. Institute of Science and Technology, Kilis 7 Aralik University, 2013. (In Turkish)Google Scholar
  20. [20]
    Keleş M, Serindağ O, Katı Desteğe Tutturulmuş Fosfin Ligandları Ve Metal Komplekslerinin Sentezlenmesi. Ç.Ü Institute of Science and Technology, 2008:18–1. (In Turkish)Google Scholar
  21. [21]
    ElBatal F H, Abdelghany A M, ElBatal H A. Characterization by combined optical and FT infrared spectra of 3d-transition metal ions doped-bismuth silicate glasses and effects of gamma irradiation. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013, 122: 461–468.CrossRefGoogle Scholar
  22. [22]
    Yildizay H, Goren R, Yanik G. Use of Alunite Mineral as a Jeopolymer Starting Material. AKU J. Sci. Eng., 2014, 14: 219–224. (In Turkish)Google Scholar
  23. [23]
    Mishra L, Sharma A, Vishwakarma A K, et al. White light emission and color tunability of dysprosium doped barium silicate glasses. Journal of Luminescence, 2016, 169: 121–127.CrossRefGoogle Scholar
  24. [24]
    ElBatal H A, Azooz M A, Khalil E M AA, et al. Characterization of some bioglass-ceramics. Materials Chemistry and Physics, 2003, 80: 599–609.CrossRefGoogle Scholar

Copyright information

© Foundry Journal Agency and Springer Singapore 2019

Authors and Affiliations

  1. 1.Vocational School, Department of Chemical TechnologiesBilecik Seyh Edebali UniversityBilecikTurkey

Personalised recommendations