Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand
The degradation of Reactive Red 120 dye (RR-120) in synthetic waters was studied. Two processes were considered: homogeneous sono-Fenton with iron(II) sulfate and heterogeneous sono-Fenton with synthetic goethite and goethite deposited onto silica and calcite sand (modified catalysts GS and GC, resp...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Serbian Chemical Society
2020-01-01
|
Series: | Journal of the Serbian Chemical Society |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51391900096G.pdf |
id |
doaj-0992ff6cb8c94553ac87dcc6fc414485 |
---|---|
record_format |
Article |
spelling |
doaj-0992ff6cb8c94553ac87dcc6fc4144852020-11-25T02:52:09ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51391820-74212020-01-0185112514010.2298/JSC190506096G0352-51391900096GDegradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sandGarófalo-Villalta Soraya0Medina-Espinosa Tanya1Sandoval-Pauker Christian2Villacis William3Ciobotă Valerian4Muñoz Bisesti Florinella5Vargas Jentzsch Paul6Departamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorDepartamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorDepartamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorDepartamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorRigaku Analytical Devices, Inc., Wilmington, USADepartamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorDepartamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Quito, EcuadorThe degradation of Reactive Red 120 dye (RR-120) in synthetic waters was studied. Two processes were considered: homogeneous sono-Fenton with iron(II) sulfate and heterogeneous sono-Fenton with synthetic goethite and goethite deposited onto silica and calcite sand (modified catalysts GS and GC, respectively). In 60 min of reaction, the homogeneous sono-Fenton process allowed a degradation of 98.10 %, in contrast with 96.07 % for the heterogeneous sono-Fenton process with goethite at pH 3.0. The removal of RR-120 increased when the modified catalysts were used instead of bare goethite. Chemical oxygen demand (COD) and total organic carbon (TOC) measurements showed that the highest TOC and COD removals were achieved with the homogeneous sono-Fenton process. Biochemical oxygen demand (BOD5) measurements allowed confirmed that the highest value of BOD5/COD was achieved with a heterogeneous sono-Fenton process (0.88±0.04 with the modified catalyst GC), demonstrating that the biodegradability of the residual organic compounds was remarkably improved.http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51391900096G.pdfaopsgoethite immobilizationultrasound irradiationazo dye |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Garófalo-Villalta Soraya Medina-Espinosa Tanya Sandoval-Pauker Christian Villacis William Ciobotă Valerian Muñoz Bisesti Florinella Vargas Jentzsch Paul |
spellingShingle |
Garófalo-Villalta Soraya Medina-Espinosa Tanya Sandoval-Pauker Christian Villacis William Ciobotă Valerian Muñoz Bisesti Florinella Vargas Jentzsch Paul Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand Journal of the Serbian Chemical Society aops goethite immobilization ultrasound irradiation azo dye |
author_facet |
Garófalo-Villalta Soraya Medina-Espinosa Tanya Sandoval-Pauker Christian Villacis William Ciobotă Valerian Muñoz Bisesti Florinella Vargas Jentzsch Paul |
author_sort |
Garófalo-Villalta Soraya |
title |
Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand |
title_short |
Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand |
title_full |
Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand |
title_fullStr |
Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand |
title_full_unstemmed |
Degradation of Reactive Red 120 dye by a heterogeneous Sono-Fenton process with goethite deposited onto silica and calcite sand |
title_sort |
degradation of reactive red 120 dye by a heterogeneous sono-fenton process with goethite deposited onto silica and calcite sand |
publisher |
Serbian Chemical Society |
series |
Journal of the Serbian Chemical Society |
issn |
0352-5139 1820-7421 |
publishDate |
2020-01-01 |
description |
The degradation of Reactive Red 120 dye (RR-120) in synthetic waters was studied. Two processes were considered: homogeneous sono-Fenton with iron(II) sulfate and heterogeneous sono-Fenton with synthetic goethite and goethite deposited onto silica and calcite sand (modified catalysts GS and GC, respectively). In 60 min of reaction, the homogeneous sono-Fenton process allowed a degradation of 98.10 %, in contrast with 96.07 % for the heterogeneous sono-Fenton process with goethite at pH 3.0. The removal of RR-120 increased when the modified catalysts were used instead of bare goethite. Chemical oxygen demand (COD) and total organic carbon (TOC) measurements showed that the highest TOC and COD removals were achieved with the homogeneous sono-Fenton process. Biochemical oxygen demand (BOD5) measurements allowed confirmed that the highest value of BOD5/COD was achieved with a heterogeneous sono-Fenton process (0.88±0.04 with the modified catalyst GC), demonstrating that the biodegradability of the residual organic compounds was remarkably improved. |
topic |
aops goethite immobilization ultrasound irradiation azo dye |
url |
http://www.doiserbia.nb.rs/img/doi/0352-5139/2020/0352-51391900096G.pdf |
work_keys_str_mv |
AT garofalovillaltasoraya degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT medinaespinosatanya degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT sandovalpaukerchristian degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT villaciswilliam degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT ciobotavalerian degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT munozbisestiflorinella degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand AT vargasjentzschpaul degradationofreactivered120dyebyaheterogeneoussonofentonprocesswithgoethitedepositedontosilicaandcalcitesand |
_version_ |
1724731034895908864 |