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Removal of pharmaceuticals from MWTP effluent by nanofiltration and solar photo-Fenton using two different iron complexes at neutral pH.
Water Res. 2014 Nov 01; 64:23-31.WR

Abstract

In recent years, membrane technologies (nanofiltration (NF)/reverse osmosis (RO)) have received much attention for micropollutant separation from Municipal Wastewater Treatment Plant (MWTP) effluents. Practically all micropollutants are retained in the concentrate stream, which must be treated. Advanced Oxidation Processes (AOPs) have been demonstrated to be a good option for the removal of microcontaminants from water systems. However, these processes are expensive, and therefore, are usually combined with other techniques (such as membrane systems) in an attempt at cost reduction. One of the main costs in solar photo-Fenton comes from reagent consumption, mainly hydrogen peroxide and chemicals for pH adjustment. Thus, in this study, solar photo-Fenton was used to treat a real MWTP effluent with low initial iron (less than 0.2 mM) and hydrogen peroxide (less than 2 mM) concentrations. In order to work at neutral pH, iron complexing agents (EDDS and citrate) were used in the two cases studied: direct treatment of the MWTP effluent and treatment of the concentrate stream generated by NF. The degradation of five pharmaceuticals (carbamazepine, flumequine, ibuprofen, ofloxacin and sulfamethoxazole) spiked in the effluent at low initial concentrations (μg L(-1)) was monitored as the main variable in the pilot-plant-scale photo-Fenton experiments. In both effluents, pharmaceuticals were efficiently removed (>90%), requiring low accumulated solar energy (2 kJUV L(-1), key parameter in scaling up the CPC photoreactor) and low iron and hydrogen peroxide concentrations (reagent costs, 0.1 and 1.5 mM, respectively). NF provided a clean effluent, and the concentrate was positively treated by solar photo-Fenton with no significant differences between the direct MWTP effluent and NF concentrate treatments.

Authors+Show Affiliations

Plataforma Solar de Almería-CIEMAT. Carretera Senés km 4, 04200 Tabernas (Almería), Spain.Plataforma Solar de Almería-CIEMAT. Carretera Senés km 4, 04200 Tabernas (Almería), Spain.Departamento de Ingeniería Química de la Universidad de Almería. Carretera Sacramento S/N, 04120 Almería, Spain.Plataforma Solar de Almería-CIEMAT. Carretera Senés km 4, 04200 Tabernas (Almería), Spain. Electronic address: sixto.malato@psa.es.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25025178

Citation

Miralles-Cuevas, S, et al. "Removal of Pharmaceuticals From MWTP Effluent By Nanofiltration and Solar photo-Fenton Using Two Different Iron Complexes at Neutral PH." Water Research, vol. 64, 2014, pp. 23-31.
Miralles-Cuevas S, Oller I, Pérez JAS, et al. Removal of pharmaceuticals from MWTP effluent by nanofiltration and solar photo-Fenton using two different iron complexes at neutral pH. Water Res. 2014;64:23-31.
Miralles-Cuevas, S., Oller, I., Pérez, J. A. S., & Malato, S. (2014). Removal of pharmaceuticals from MWTP effluent by nanofiltration and solar photo-Fenton using two different iron complexes at neutral pH. Water Research, 64, 23-31. https://doi.org/10.1016/j.watres.2014.06.032
Miralles-Cuevas S, et al. Removal of Pharmaceuticals From MWTP Effluent By Nanofiltration and Solar photo-Fenton Using Two Different Iron Complexes at Neutral PH. Water Res. 2014 Nov 1;64:23-31. PubMed PMID: 25025178.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of pharmaceuticals from MWTP effluent by nanofiltration and solar photo-Fenton using two different iron complexes at neutral pH. AU - Miralles-Cuevas,S, AU - Oller,I, AU - Pérez,J A Sánchez, AU - Malato,S, Y1 - 2014/06/30/ PY - 2014/03/17/received PY - 2014/06/15/revised PY - 2014/06/20/accepted PY - 2014/7/16/entrez PY - 2014/7/16/pubmed PY - 2015/12/15/medline KW - Compound parabolic collectors KW - Iron complexes KW - Micropollutants KW - Nanofiltration KW - Photo-Fenton KW - Solar photocatalysis SP - 23 EP - 31 JF - Water research JO - Water Res. VL - 64 N2 - In recent years, membrane technologies (nanofiltration (NF)/reverse osmosis (RO)) have received much attention for micropollutant separation from Municipal Wastewater Treatment Plant (MWTP) effluents. Practically all micropollutants are retained in the concentrate stream, which must be treated. Advanced Oxidation Processes (AOPs) have been demonstrated to be a good option for the removal of microcontaminants from water systems. However, these processes are expensive, and therefore, are usually combined with other techniques (such as membrane systems) in an attempt at cost reduction. One of the main costs in solar photo-Fenton comes from reagent consumption, mainly hydrogen peroxide and chemicals for pH adjustment. Thus, in this study, solar photo-Fenton was used to treat a real MWTP effluent with low initial iron (less than 0.2 mM) and hydrogen peroxide (less than 2 mM) concentrations. In order to work at neutral pH, iron complexing agents (EDDS and citrate) were used in the two cases studied: direct treatment of the MWTP effluent and treatment of the concentrate stream generated by NF. The degradation of five pharmaceuticals (carbamazepine, flumequine, ibuprofen, ofloxacin and sulfamethoxazole) spiked in the effluent at low initial concentrations (μg L(-1)) was monitored as the main variable in the pilot-plant-scale photo-Fenton experiments. In both effluents, pharmaceuticals were efficiently removed (>90%), requiring low accumulated solar energy (2 kJUV L(-1), key parameter in scaling up the CPC photoreactor) and low iron and hydrogen peroxide concentrations (reagent costs, 0.1 and 1.5 mM, respectively). NF provided a clean effluent, and the concentrate was positively treated by solar photo-Fenton with no significant differences between the direct MWTP effluent and NF concentrate treatments. SN - 1879-2448 UR - https://www.unboundmedicine.com/medline/citation/25025178/Removal_of_pharmaceuticals_from_MWTP_effluent_by_nanofiltration_and_solar_photo_Fenton_using_two_different_iron_complexes_at_neutral_pH_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(14)00461-8 DB - PRIME DP - Unbound Medicine ER -