scholarly journals Removal of the commercial reactive dye Procion Blue MX-7RX from real textile wastewater using the synthesized Fe2O3 nanoparticles at different particle sizes as a source of Fenton's reagent

2019 ◽  
Vol 1 (4) ◽  
pp. 1362-1371 ◽  
Author(s):  
Maha A. Tony ◽  
Shehab A. Mansour
Keyword(s):  
Particle Size ◽  
Textile Wastewater ◽  
Reactive Dye ◽  
Particle Sizes ◽  
Fe2o3 Nanoparticles ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Fenton System ◽  
Textile Dyeing Wastewater

The aim of the present study was to signify the role of the particle size of an iron source in the photo-Fenton system for textile dyeing wastewater oxidation.

scholarly journals Enhanced Photo–Fenton Removal Efficiency with Core-Shell Magnetic Resin Catalyst for Textile Dyeing Wastewater Treatment

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 968
Author(s):  
Jie Zhong ◽  
Bin Yang ◽  
Yong Feng ◽  
Yang Chen ◽  
Li-Gao Wang ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
In Situ Polymerization ◽  
Matrix Effects ◽  
Core Shell ◽  
Dyeing Wastewater ◽  
Practical Applications ◽  
Textile Dyeing ◽  
Reactive Radicals ◽  
Fenton System ◽  
Textile Dyeing Wastewater

Heterogeneous photo–Fenton reactions have been regarded as important technologies for the treatment of textile dyeing wastewaters. In this work, an efficient core-shell magnetic anion exchange resin (MAER) was prepared through in situ polymerization and used to remove reactive brilliant red (X-3B) in a UV–Fenton system. The MAER exhibited satisfactory removal efficiency for X-3B because of its highly effective catalytic activity. More than 99% of the X-3B (50 mg/L) was removed within 20 min in the UV–Fenton reaction. This is because the uniformly dispersed core-shell magnetic microsphere resin could suppress the aggregation of Fe3O4 nanoparticles and, thus, enhance the exposure of Fe reaction sites for catalytic reaction with H2O2. The good adsorption capacity of MAER also played an important role in promoting contact between X-3B and reactive radicals during the reaction. Mechanism research showed that hydroxyl radical (•OH) was the main reactive radicals for the removal of X-3B in the MAER UV–Fenton system. The MAER can be easily separated by a magnet after catalytic reactions. Moreover, the matrix effects of different substrates (Cl−, NO3−, SO42−, and humic acid) were investigated. The results showed that SO42− could be beneficial to improve the removal of X-3B but that the others decrease the removal. The MAER UV–Fenton also removed significant amounts of total organic carbon (TOC) for the X-3B solution and an actual textile dyeing industrial wastewater. The heterogeneous oxidation system established in this work may suggest prospects for practical applications in the treatment of textile dyeing wastewater.

scholarly journals The development of techniques for the analysis of reactive dyes in textile dyeing wastewater

1999 ◽  
Author(s):  
◽  
Ayesha Hansa
Keyword(s):  
Textile Industry ◽  
Environmental Problem ◽  
Reactive Dyes ◽  
Analytical Techniques ◽  
Reactive Dye ◽  
Technical Innovation ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Cellulosic Fibres ◽  
Textile Dyeing Wastewater

An environmental problem facing the textile industry is the coloured effluent from the dyeing of cellulosic fibres with reactive dyes. Reactive dye loss during dyeing operations is about 10 to 40 %, indicating the need to learn more about the fate of these dyes. Increasing environmental regulations are driving technical innovation to manage this problem. Good analytical techniques for the separation and detection of reactive dyes and their derivatives are necessary for monitoring dye-house effluent, as well as in the optimisation of dye synthesis, purification, formulation and application.

scholarly journals Photocatalytic Degradation of Textile Dyeing Wastewater Using Titanium Dioxide and Zinc Oxide

2008 ◽  
Vol 5 (2) ◽  
pp. 219-223 ◽  
Author(s):  
Abbas J. Attia ◽  
Salih H. Kadhim ◽  
Falah H. Hussein
Keyword(s):  
Activation Energy ◽  
Zinc Oxide ◽  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Irradiation Time ◽  
Effect Of Temperature ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Textile Factory ◽  
Textile Dyeing Wastewater

Photodegradation of a real textile dyeing wastewater taken from Hilla textile factory in Babylon Governorate, Iraq have been investigated. Photocatalytic degradation was carried out over suspensions of titanium dioxide or zinc oxide under ultraviolet irradiation. Photodegradation percentage was followed spectrophometrically by the measurements of absorbance at λmax equal to 380 nm. The rate of photodegradation increased linearly with time of irradiation when titanium dioxide or zinc oxide was used. A maximum color removal of 96% was achieved after irradiation time of 2.5 hours when titanium dioxide used at 303K and 82% color reduction was observed when zinc oxide used for the same period and at the same temperature. The effect of temperature on the efficiency of photodegradation of dyestuff was also studied. The activation energy of photodegradation was calculated and found to be equal to 21 ± 1 kJ mol-1 on titanium dioxide and 24 ± 1 kJ mol-1 on zinc oxide.

scholarly journals Iron-Manganese Bimetallic-Organic Framework as A Photocatalyst for Degradation of Rhodamine B Organic Dye Under Visible Light

2021 ◽  
Vol 16 (4) ◽  
pp. 916-924
Author(s):  
Tran Thi Kim Ngan ◽  
Tran Bich Thuy ◽  
Lam Van Tan ◽  
Trung Thanh Nguyen
Keyword(s):  
Rhodamine B ◽  
Diffuse Reflectance Spectroscopy ◽  
Partial Replacement ◽  
Thermal Method ◽  
Dyeing Wastewater ◽  
Organic Pigment ◽  
Oxidizing Agents ◽  
Textile Dyeing ◽  
Textile Dyeing Wastewater ◽  
Organic Framework

In recent years, there have been many research works on use of different methods to treat textile dyeing wastewater such as mechanical, biological and chemical methods (using oxidizing agents, such as: H2O2, O3, and H2O2/O3). However, some traditional textile dyeing wastewater treatment methods such as mechanical and biological methods have limitations in treating these pollutants thoroughly. To enhance the treatment efficiency, the use of photocatalysts combination with strong oxidizing agents, such as H2O2, has been extensively developed in recent years. In this study, the iron-centred bimetallic organic framework Fe-MOF has been synthesized by partial replacement of Fe3+ ions with Mn metal ions by solvent-thermal method. The analytical methods used to evaluate the structural characterization of the as-synthesized materials including Scanning Electron Microscope (SEM), Brunaurer-Emmett-Teller (BET), X-ray Diffraction (XRD), Fourier Transform Infra Red (FT-IR), and UV-Vis Diffuse Reflectance Spectroscopy (DRS). The experiments on the decomposition of organic pigment Rhodamine B were performed under varying conditions of pH, catalyst mass and RhB colorant concentration. Experiments with different electron capturers indicate that h+ plays a major role in the photochemical degradation of RhB. The stability and durability of the 0.1 Mn/Fe-MOF catalyst were evaluated through the leaching and recycle experiments, showing that the RhB degradation efficiency of the photocatalyst decreased modestly after five repetitions. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 

scholarly journals Evaluation of kinetic models for tearing textile dyeing wastewater using UASB reactor

2017 ◽  
Vol 03 (04) ◽  
pp. 57-65
Author(s):  
G. Gnanapragasam ◽  
V. Arutchelvan ◽  
L. Soundari ◽  
C.S. Maneeshkumar
Keyword(s):  
Kinetic Models ◽  
Uasb Reactor ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Textile Dyeing Wastewater

scholarly journals Orange-based and Lemon-based Adsorbents with Controlled Grain for an Efficient Elimination of Cationic and Anionic Dyes from Textile Dyeing Wastewater

2021 ◽  
Author(s):  
G. Pascual ◽  
M. Riba-Moliner ◽  
J. M. Canal ◽  
J. Garcia-Raurich
Keyword(s):  
Aqueous Solutions ◽  
Industrial Process ◽  
Operating Conditions ◽  
Dyeing Wastewater ◽  
Anionic Dyes ◽  
Chemically Modified ◽  
Natural Adsorbents ◽  
Textile Dyeing ◽  
Efficient Elimination ◽  
Textile Dyeing Wastewater

Abstract Physically and chemically modified orange and lemon mesocarps are used as natural adsorbents for both cationic and anionic dyes from wastewaters of textile dyeing industry. Adsorptivity of the orange-based and lemon-based adsorbents to the dyes are studied simulating a batch and a continuous industrial process. Thus, the most suitable operating conditions to achieve the maximum adsorption yield are provided. Results demonstrate that treated orange and lemon mesocarps can be used as excellent reusable adsorbents to the removal of cationic and anionic dyes from aqueous solutions. Moreover, the recovery of the adsorbed dye is also reliable and proved.

Determination of textile dyeing wastewater COD components by comparison with respirometry and full‐scale data

2010 ◽  
Vol 31 (11) ◽  
pp. 1191-1201 ◽  
Author(s):  
Jing‐Jie Yu ◽  
Guo‐Wei Gu ◽  
Giovanni Esposito ◽  
Massimiliano Fabbricino ◽  
Shao‐Po Wang ◽  
...  
Keyword(s):  
Full Scale ◽  
Dyeing Wastewater ◽  
Textile Dyeing ◽  
Scale Data ◽  
Textile Dyeing Wastewater
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