Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process
Textile industries present notable environmental problems related mainly to the use and management of water resources. The application of advanced oxidation technologies (AOT) to a real and complex system was analyzed. The degradation of a real textile effluent in the presence of commercial steel wo...
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Autores principales: | , , , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
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2020
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/145829 |
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I19-R120-10915-145829 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Ingeniería Química Wastewater Degradation Advanced Oxidation Technologies (AOT) Zero-valent iron Phytotoxicity tests |
spellingShingle |
Ingeniería Química Wastewater Degradation Advanced Oxidation Technologies (AOT) Zero-valent iron Phytotoxicity tests Ramos, Pamela Belén Vitale, Paula Barreto, Gastón P. Aparicio, Francisca Dublan, María de los Ángeles Eyler, Gladys Nora Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
topic_facet |
Ingeniería Química Wastewater Degradation Advanced Oxidation Technologies (AOT) Zero-valent iron Phytotoxicity tests |
description |
Textile industries present notable environmental problems related mainly to the use and management of water resources. The application of advanced oxidation technologies (AOT) to a real and complex system was analyzed. The degradation of a real textile effluent in the presence of commercial steel wool (CSW, zero-valent iron) and H₂O₂ as oxidant was studied. The effects of H₂O₂ concentration (0-0.08 mol L⁻¹), mass of CSW (0-0.4 g L⁻¹) and temperature (15-45 °C) on the reduction of the chemical oxygen demand (COD) of the textile effluent were evaluated. Kinetic studies were performed at laboratory and pilot scales at different temperatures under optimal conditions (0.037 mol L⁻¹ of H₂O₂ and 0.247 g L⁻¹ of CSW). Iron species (Fe²⁺, Fe³⁺, total Fe) were quantified in solution for different experiments as a function of time. COD reductions of 87.69% at lab scale and 89.55% at optimized pilot scale in 300 min (140.66 mgO₂ L⁻¹ of COD, final discharge) were obtained. A metallurgical residue was tested as iron source, obtaining high COD removal (65%). Operating costs were calculated. Phytotoxicity tests performed before and after treatment showed that the effluent treated under optimal conditions was non-toxic. |
format |
Articulo Articulo |
author |
Ramos, Pamela Belén Vitale, Paula Barreto, Gastón P. Aparicio, Francisca Dublan, María de los Ángeles Eyler, Gladys Nora |
author_facet |
Ramos, Pamela Belén Vitale, Paula Barreto, Gastón P. Aparicio, Francisca Dublan, María de los Ángeles Eyler, Gladys Nora |
author_sort |
Ramos, Pamela Belén |
title |
Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
title_short |
Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
title_full |
Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
title_fullStr |
Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
title_full_unstemmed |
Treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/H₂O₂ process |
title_sort |
treatment of real non-biodegradable wastewater: feasibility analysis of a zero-valent iron/h₂o₂ process |
publishDate |
2020 |
url |
http://sedici.unlp.edu.ar/handle/10915/145829 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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1764820461705756672 |