Effect of controlled parameters in lab-scale system of iron treatment from simulated groundwater with ozone

Document Type : Research Paper

Authors

1 Department of Environmental Engineering, International University, Quarter 6, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam

2 Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam

Abstract

Dissolved ozone (O3(aq)) and residual ozone in groundwater under differently controlled parameters are two important outcomes in a lab-scale system of ferrous treatment with ozone, but they have not been well investigated yet. In this study, several preliminary parameters of ozone generation, types of diffusers, hydraulic retention time, and the pH in an ozone system of laboratory treatment were examined and evaluated statistically. The results showed that a venturi injector coupled with a bubble diffuser increased O3(aq) concentration to 9.05±0.28 mg/L corresponding to its diffusive coefficient of 0.195 min-1, 2.6 times higher than the bubble diffuser only. The O3(aq) decay constant in the presence of ferrous was 4.88 times higher than that in its absence. The mole stoichiometry of (D[O3(aq)]/D[Fe2+]) in synthetic water during ozonation was 1.21, corresponding to its mass ratio of 1.04 mg O3(aq)/mg Fe2+. The highest efficacy of ozone on ferrous removal was achieved at pH4.0, followed by that at pH6.0; the residual iron concentration at pH6.0 was 0.230±0.149 mg/L, falling below the WHO standard for drinking water. The residual ozone at pH 4.0 and 6.0 was not statistically different and may take 186 and 300 hrs. to achieve EPA and FDA regulations, respectively. The obtained results may provide a system and information of ozone conditions applied in the treatment of iron to meet the maximum standards of iron and ozone in water.

Keywords

Main Subjects

References

[1] Ityel, D. (2011). Ground water: Dealing with iron contamination. Filtration  and separation, 48(1), 26–28.
[2] Le Luu, T. (2019). Remarks on the current quality of groundwater in Vietnam. Environmental science and pollution research, 26(2), 1163–1169.
[3] World Health Organization (WHO). World health organization guidelines for drinking water quality, recommendations. Geneva, Switzerland: WHO; 1984. p. 79.
 [4] Ji, Y., Pan, Z., Yuan, D., Lai, B. (2018). Advanced treatment of the antibiotic production wastewater by ozone/zero-valent iron process. Clean - soil, air, water, 46(3), 1700666.
[5] Qadafi, M., Notodarmojo, S., & Zevi, Y. (2020). Effects of microbubble pre-ozonation time and pH on trihalomethanes and haloacetic acids formation in pilot-scale tropical peat water treatments for drinking water purposes. Science of the total environment, 747, 141-540.
[6] Martin, N., Benezet-Toulze, M., Laplace, C., Faivre, M., Langlais, B. (1992). Design and efficiency of ozone contactors for disinfection. Ozone: science and engineering, 14(5), 391–405.
[7] Xu, P., Janex, M.-L., Savoye, P., Cockx, A., Lazarova, V. (2002). Wastewater disinfection by ozone: Main parameters for process design. Water research, 36(4), 1043–1055.
[8] El Araby, R., Hawash, S., El Diwani, G. (2009). Treatment of iron and manganese in simulated groundwater via ozone technology. Desalination, 249(3), 1345–1349.
[9] Sripiboon, S., Suwannahong, K. (2018). Color removal by ozonation process in biological wastewater treatment from the breweries. IOP conference series: Earth and environmental science, 167, 012010.
[10] Loegager, T., Holcman, J., Sehested, K., & Pedersen, T. (1992). Oxidation of ferrous ions by ozone in acidic solutions. Inorganic chemistry, 31(17), 3523–3529.
[11] Apiradee, S., and Ratsamee, S. (2021). Removal of Iron from groundwater by ozonation: the response surface methodology for parameter optimization. Environment and natural resources journal, 19 (4), 330-336.
[12] Malkov, V., Sadar, M. (2010). Control of iron and manganese ozone removal by differential turbidity measurements. Ozone: science and engineering, 32(4), 286–291.
[13] Paillard, H., Legube, B., Bourbigot, M. M., Lefebvre, E. (1989). Iron and manganese removal with ozonation in the presence of humic substances. ozone: Science and engineering, 11(1), 93–113.
[14] Sallanko, J., Lakso, E., Röpelinen, J. (2006). Iron behavior in the ozonation and filtration of groundwater. Ozone: Science and engineering, 28(4), 269–273.
[15] Rakness, K. L., Renner, R. C., Hegg, B. A., Hill, A. G. (1988). Practical design model for calculating bubble diffuser contactor ozone transfer efficiency. Ozone: Science and engineering, 10(2), 173–214.
 [16] Biń, A. K. (2004). Ozone dissolution in aqueous systems treatment of the experimental data. Experimental thermal and fluid science, 28(5), 395–405..
[17] Yao, P. X., Hendrawan, F. B., Bi, H. T., Wang, J. H., Fu, J. (2008). Effects of organic compounds and recycling on ozone absorption in a portable water purification unit. Journal of environmental engineering and science, 7(1), 1–8.
[18] Flores-Payán, V., Herrera-López, E. J., Navarro-Laboulais, J., López-López, A. (2015). Parametric sensitivity analysis and ozone mass transfer modeling in a gas–liquid reactor for advanced water treatment. Journal of industrial and engineering chemistry, 21, 1270–1276.
[19] Hu, L., Xia, Z. (2018). Application of ozone micro-nano-bubbles to groundwater remediation. Journal of hazardous materials, 342, 446–453.
[20] Magara, Y., Itoh, M., Morioka, T. (1995). Application of ozone to water treatment and power consumption of ozone generating systems. Progress in nuclear energy, 29, 175–182.
[21] Polio, I. (2004). Selected Design Criteria for Ozone Production. Journal of advanced oxidation technologies, 7(1), 31–36.
 [22 Cuong, L. C., Nghi, N. H., Dieu, T. V., Oanh, D. T. Y., Vuong, D. D. (2019). Influence of oxygen concentration, feed gas flow rate and air humidity on the output of ozone produced by corona discharge: Frailty and life satisfaction in elderly. Vietnam journal of chemistry, 57(5), 604–608.
 [23] Alsheyab, M. A. T., Muñoz, A. H. (2007). Optimisation of ozone production for water and wastewater treatment. Desalination, 217(1–3), 1–7.
[24] APHA, Standard methods for the examination of water and wastewater. Eds. 1992.  Greenberg A.E., L.S. Clesceri and A.D.Eaton, 18th ed. American public health association, Washington, DC.
[25] Ratnawati, R., Kusumaningtyas, D. A., Suseno, P., Prasetyaningrum, A. (2018). Mass transfer coefficient of ozone in a bubble column. MATEC web of conferences, 156, 02015.
[26] Schulz, C. R., Bellamy, W. D. (2000). The role of mixing in ozone dissolution systems. Ozone: Science and engineering, 22(4), 329–350.
[27] Rakness, K. L., Hunter, G., Lew, J., Mundy, B., Wert, E. C. (2018). Design considerations for cost-effective ozone mass transfer in sidestream systems. Ozone: Science and engineering, 40(3), 159–172.
[28] Loegager, T., Holcman, J., Sehested, K., Pedersen, T. (1992). Oxidation of ferrous ions by ozone in acidic solutions. Inorganic chemistry, 31(17), 3523–3529.
[29] Gardoni, D., Vailati, A., Canziani, R. (2012). Decay of ozone in water: A review. Ozone: science and engineering, 34(4), 233–242. 
Advances in Environmental Technology
Volume 8, Issue 1
February 2022
Pages 47-56

Files

History

  • Receive Date: 08 October 2021
  • Revise Date: 11 March 2022
  • Accept Date: 12 March 2022

Share

How to cite

Statistics