Journal Article10.1080/10643380091184237
Decolorization of Wastewater
1K
TL;DR: In this article, the background information of dye molecules and dye waste characteristics are described and the methods for color measurements and standards are discussed, and different techniques including almost all the known physical, chemical and biological techniques are described for decolorization.
read more
Abstract: The public demand for color-free waste discharge to receiving waters and tougher color standards have made decolorization of a variety of industrial wastes a top priority. Unfortunately, with the complicated color-causing compounds, the decolorization of these wastes is a difficult and challenging task. This article first describes the background information of dye molecules and dye waste characteristics. The methods for color measurements and standards are then discussed. Different techniques including almost all the known physical, chemical and biological techniques are described for decolorization. Each process alone may not be able to meet the requirements. A combination of these processes, for example, chemical-biological, biological-chemical, chemical-physical, chemical-chemical, etc. is often used. The formation of intermediates during the decolorization process is emphasized. These byproducts may be more toxic than the parent compounds. Thus, the extent of the mineralization in waste decolorizatio...
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Treatment of industrial dyes using chitosan-supported nanocomposite adsorbents
Mohammad Shahadat,Mohammad Shahadat,Syahida Farhan Azha,Suzylawati Ismail,Z.A. Shaikh,Syed Ali Wazed +5 more
- 01 Jan 2019
TL;DR: In this article, the authors explored the development of chitosan-supported nanocomposite adsorbents for the removal of industrial dyes, which have been characterized using advanced techniques of characterization including; Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM), TEM, RAMAN, X-Ray Diffraction (XRD), Thermogravimetric Analysis/Differential Thermal Analysis (TGA/DTA), and Atomic-Force Microscopy (AFM) analyses.
14
KrCl and XeCl excilamps and LP-Hg lamp for UV and UV/H2O2 decolourization of dyes in water.
TL;DR: The KrCl excilamp showed significantly higher decolourization efficiencies than LP-Hg lamp and XeClExcilamp, but the dye removal rate was significantly slower for Methylene Blue than for Eliamine Blue with this lamp.
14
Degradation and detoxification of acid orange 52 by Pseudomonas putida mt-2: a laboratory study
Hedi Ben Mansour,Hedi Ben Mansour,Kamel Ghedira,Daniel Barillier,Leila Chekir Ghedira,Ridha Mosrati +5 more
TL;DR: Azoreduction products seem to be responsible for BuChE inhibition activity observed in static biodegradation extract, however, toxicity of AO52 completely disappears after shaken incubation with P. putida, suggesting that bacterium has a catabolism which enables it to completely degrade AO 52 and especially, to detoxify the dye mixture.
14
Screening thermotolerant white-rot fungi for decolorization of wastewaters.
TL;DR: The immobilized mycelia on polyurethane foam enhanced the ligninolytic enzyme production as well as total phenol and color removal and decolorization of wastewater from alcohol distillery (WAD) by these strains was compared under static culture at 43°C.
14
Effect of nano bentonite on direct yellow 50 dye removal; Adsorption isotherm, kinetic analysis, and thermodynamic behavior
TL;DR: In this paper , the effect of different operating conditions was studied using different pH, dose, contact time, temperature, and initial DY 50 concentrations, and the adjusted R2 was compared to detect the preferred models.
14
References
•Book
Standard methods for the examination of water and wastewater
A.E. Greenberg,Lenore S. Clesceri,Andrew D. Eaton +2 more
- 01 Jan 1992
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
97.9K
Decolorizing dye wastewater with Fenton's reagent
TL;DR: In this article, simulated dye wastewater, separately prepared with disperse, reactive, direct, acid and basic dyes, were decolorized with a hydrogen peroxide-ferrous ion system, known as Fenton's reagent.
729
The degradation of dyestuffs: Part II Behaviour of dyestuffs in aerobic biodegradation tests
TL;DR: In this paper, the results confirmed that dyestuffs are most unlikely to show any significant biodegradation in such tests and that substantial colour removal was observed which may be attributed to the elimination of the dyes by adsorption.
696
The removal of colour from effluent using various adsorbents—III. Silica: Rate processes
TL;DR: In this article, the rate of adsorption of Astrazone Blue, a basic dye, on Sorbsil Silica has been studied, where particle size, initial dye concentration, agitation and dye solution temperature were all considered.
538
Environmental Photochemistry on Semiconductor Surfaces: Photosensitized Degradation of a Textile Azo Dye, Acid Orange 7, on TiO2 Particles Using Visible Light
TL;DR: In this article, the degradation of a textile azo dye, acid orange 7, has been carried out on TiO2 particles using visible light using diffuse reflectance absorption and FTIR techniques.
530