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: Ramos, Pamela Belén, Vitale, Paula, Barreto, Gastón P., Aparicio, Francisca, Dublan, María de los Ángeles, Eyler, Gladys Nora
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145829
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id I19-R120-10915-145829
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
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