The use of iron in a +6 valence state, (Fe (VI), as FeO4−2) was tested as a novel alternative for wastewater disinfection and decontamination. The removal of organic matter (OM) and index microorganisms present in an effluent of a wastewater plant was determined using FeO4−2 without any pH adjustment. It was observed that concentrations of FeO4−2 ranging between 5 and 14 mg l−1 inactivated up to 4-log of the index microorganisms (initial concentration c.a. 106 CFU/100 ml) and achieved OM removal up to almost 50%. The performance of FeO4−2 was compared with OM oxidation and disinfection using hypochlorite. It was observed that hypochlorite was less effective in OM oxidation and coliform inactivation than ferrate. Results of this work suggest that FeO4−2 could be an interesting oxidant able to deactivate pathogenic microorganisms in water with high OM content and readily oxidize organic matter without jeopardizing its efficiency on microorganism inactivation.
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Research Article|
May 01 2009
Wastewater disinfection and organic matter removal using ferrate (VI) oxidation
Erick R. Bandala;
1Departamento de Ingeniería Civil y Ambiental, Universidad de Las Americas-Puebla, Sta. Catarina Martir, Cholula 72820 Puebla, Mexico
Tel.: +52 222 2292652 Fax: +52 222229200 ext. 4199; E-mail: [email protected]
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Jocelyn Miranda;
Jocelyn Miranda
2Universidad Autónoma Metropolitana, Unidad Azcapozalco, Av. San Pablo 180, Mexico DF 02200, Mexico
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Margarita Beltran;
Margarita Beltran
2Universidad Autónoma Metropolitana, Unidad Azcapozalco, Av. San Pablo 180, Mexico DF 02200, Mexico
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Mabel Vaca;
Mabel Vaca
2Universidad Autónoma Metropolitana, Unidad Azcapozalco, Av. San Pablo 180, Mexico DF 02200, Mexico
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Raymundo López;
Raymundo López
2Universidad Autónoma Metropolitana, Unidad Azcapozalco, Av. San Pablo 180, Mexico DF 02200, Mexico
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Luis G. Torres
Luis G. Torres
3Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Av. Acueducto s/n Laguna de Ticoman, Mexico DF 07340, Mexico
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J Water Health (2009) 7 (3): 507–513.
Article history
Received:
December 17 2007
Accepted:
September 28 2008
Citation
Erick R. Bandala, Jocelyn Miranda, Margarita Beltran, Mabel Vaca, Raymundo López, Luis G. Torres; Wastewater disinfection and organic matter removal using ferrate (VI) oxidation. J Water Health 1 September 2009; 7 (3): 507–513. doi: https://doi.org/10.2166/wh.2009.003
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