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Relevant bibliographies by topics / Dye decolourization

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Academic literature on the topic 'Dye decolourization'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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Journal articles on the topic "Dye decolourization"

1

Raymond, Ezenweani Sunday, and Kadiri Medina Omo. "Biodecolourization of Yellow Dye Using Chlorella Vulgaris and Sphaerocystics Schroeteri." Thematics Journal of Geography 8, no. 8 (2019): 1–6. http://dx.doi.org/10.26643/tjg.v8i8.8102.

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The application of biodecolourization of textile effluents is a cost effective, environmental friendly and appropriate alternative measure in the treatment of textile effluents. In this study, two microalgae namely; Chlorella vulgaris and Sphaerocystis schroeteri were used. Yellow coloured dye was used for this study and dye solution were prepared in different concentrations of 1mg/l, 5mg/l, 10mg/l and 20mg/l. Significant decolourization was recorded in a 14 day experiment carried out by reading the absorbance of the dye solution inoculated with microalgae. Maximum decolourization by both algae was obtained at 10mg/l. In Chlorella vulgaris, maximum decolourization was 43.12% (10mg/l) while in Sphaerocystis schroeteri, maximum decolourization was 45.03% (10mg/l). The order of highest percentage decolourization for Chlorella vulgaris was 10mg/l, 20mg/l, 5mg/l, 1mg/l, while in Sphaerocystis schroeteri, the order was 10mg/l, 5mg/l, 20mg/l, 1mg/l. During the study, maximum dye decolourization, irrespective of the concentration and algae was obtained on the final day. In Chlorella vulgaris, the minimum and maximum decolourizations respectively, were 19.42% and 43.12%, but in Sphaerocystis schroeteri, the minimum and maximum decolourization respectively, were 24.27% and 45.03%. However, decolourization was significantly dependent on dye concentration. Comparatively, there was no significant difference between the percentage decolourization by the two microalgae.

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Ibrahim, Nasrul Nafis, Hasnun Nita Ismail, Nurul Fariha Lokman, and Chia Chay Tay. "Mycoremediation for Decolourization of Dye in Wastewater Using Fungi Consortium Culture: A Review." Scientific Research Journal 18, no. 2 (2021): 37–65. http://dx.doi.org/10.24191/srj.v18i2.10549.

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Dye is extensively used in industries, such as textile, paper printing, food, and leather. Dye causes significant effects on living organisms and the environment. Current dye treatment methods are inefficient in decolourization as the dye is highly persistent. Efficiency in the decolourization of dye is a challenge for industries as well as for wastewater treatment systems. This paper focuses on the mycoremediation dye treatment method, a sustainable treatment method that leads to green technology. This study explores mycoremediation efficiency and processes for dye decolourization. The gap of study on fungal mixed culture shapes future study direction of dye decolourization. Synergistic or antagonistic effects of mixed culture towards dye decolourization should be further investigated.

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Raja, R., A. Rose Venis, R. Tamil Selvan, and T. Mohandas. "Decolourization of Congo Red Dye using Solar/H2O2 Process." Asian Journal of Chemistry 33, no. 6 (2021): 1294–98. http://dx.doi.org/10.14233/ajchem.2021.22924.

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The Congo red dye was decolourized by advanced oxidation process using solar/H2O2 method and the effect of various parameters on decolourization like pH, H2O2 concentration, dye concentration, solar light intensity, additives, COD and TOC removal studies and kinetic studies were investigated. The photodegradation process was done by exposing dye solutions with the concentration of 100 mg/L treated with 50% H2O2 to sunlight with the lux intensity range of 60,000-90,000 lux. The best possible pH 2 with an optimal H2O2 concentration of 1000 mM to achieve 100% decolourization within the period of 5 h. The kinetic studies done on H2O2 concentration also proved that the high solar light intensity leads to higher decolourization and low solar light intensity leads to lesser decolourization. Addition of additives like H2PO4 – and Cl– leads to a decrease in the rate of decolourization. The removal of COD and TOC removal was found to be 83.26% and 5.18%, respectively.

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Hu, Jun Sheng, Jia Li Dong, Ying Wang, and Xue Dong Ren. "Dye Wastewater Treatment by Means of Electrochemistry in Diaphragm Electrolyzer." Applied Mechanics and Materials 178-181 (May 2012): 557–61. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.557.

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In diaphragm cell, by using the porous graphite as anode, ACF as the cathode, acid scarlet 3R as simulated wastewater, the experiment researched into the effect of current density, electrolyte concentration, aeration rate and the initial pH value on the color removal of wastewater. The results show that the decolourization efficiency increased gradually when the applied current density increases, but the trend will slow down when current density exceeds a certain value. The decolourization efficiency is proved to be first increases then decreases with increased electrolyte concentration and aeration rate, both excessively high and low electrolyte concentration are unfavorable to the removal of wastewater, however the aeration effect is smaller. The effect on decolorization is greater in acid condition than in alkaline condition. As the diaphragm, electrolyzer resistance increase, its average decolourization efficiency is lower than without diaphragm cell, and the decolourization efficiency of cathode area is significantly higher than the anode area.

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Li, Shen Xin, Wei Hu, and Cheng Duan Wang. "Decolourization of Alizarin Red by Persulfate." Advanced Materials Research 610-613 (December 2012): 300–305. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.300.

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The decolourization of dye wastewater by persulfate was studied using alizarin red as a model dye wastewater. Effects of several parameters, such as dose of oxidant, ionic strength, pH, temperature and UV irradiation, were investigated in detail. The results showed that the decolourization reaction of alizarin red by persulfate could be fitted to a pseudo-first order kinetics model. In addition, no degradation products were observed during the decolourization of alizarin red by persulfate. The results are useful for the treatment of dye wastewater.

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Mahbub, K. R., B. Morium, M. M. Ahmed, M. A. Akond, and S. Andrews. "Decolourization of Novacron Blue and Novacron Super Black Azo Dyes by Bacillus spp Isolated from Textile Effluents in Bangladesh." Journal of Scientific Research 7, no. 1-2 (2015): 45–53. http://dx.doi.org/10.3329/jsr.v7i1-2.18682.

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Effluents containing azo dyes from textile and dyeing industries cause serious pollution to aquatic environments. In this study, azo dye decolourization potential of five bacterial isolates was examined in different physicochemical conditions such as pH, temperature and glucose concentrations. Based on biochemical characteristics the isolates were identified as Bacillus badius (isolate A3 and A4) and Bacillus sphaericus (isolate A5, B8, C5). These bacteria showed decolourization of two experimental azo dyes, Novacron Blue and Novacron Super Black at different temperatures, pH and glucose concentrations up to 92% after 72 h of incubation. Decolourization increased with time and temperature. Neutral to alkaline pH with increased concentration of glucose facilitated dye removal. The maximum decolourization (92%) of experimental dyes was observed at 35°C, pH 7-8 with 2% glucose. Bacillus badius demonstrated better decolourization.

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Hu, Wei, Shen Xin Li, Wang Ying, and Cheng Duan Wang. "Decolourization of Kiscolon Scarlet 2KN by Persulfate." Advanced Materials Research 864-867 (December 2013): 256–60. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.256.

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The decolourization of dye wastewater by persulfate was studied using kiscolon scarlet2KN as a model dye wastewater. Effects of several parameters, such as dose of oxidant, pH, temperature and UV irradiation, were investigated in detail. The results showed that the decolourization reaction of kiscolon scarlet2KN by persulfate could be fitted to a pseudo-first order kinetics model. In addition, when the oxidant amount used is 70 times of kiscolon scarlet2KN, pH 5.71 and reaction temperature for 70°C, kiscolon scarlet2KN decolorization rate can reach more than 98%. The results are useful for the treatment of dye wastewater.Keywords:Kiscolon scarlet 2KN, Decolourization, Persulfate

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Madhushika, Hewayalage Gimhani, Thilini U. Ariyadasa, and Sanja H. P. Gunawardena. "Biological decolourization of textile industry wastewater by a developed bacterial consortium." Water Science and Technology 80, no. 10 (2019): 1910–18. http://dx.doi.org/10.2166/wst.2020.010.

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Abstract Most currently employed textile effluent decolourization methods use physical and chemical processes where dyes do not get degraded instead concentrated or transferred into a solid phase. Therefore, further treatment processes are required to destroy dyes from the environment. In contrast, biological decolourization may result in degradation of the dye structure due to microbial activities and hence biological processes can be considered environmentally friendly. In the present study, bacterial strains with dye decolourization potential were isolated from the natural environment and their ability to decolourize four different reactive textile dyes was studied individually and in a bacterial consortium. The developed bacterial consortium composed with Proteus mirabilis, Morganella morganii and Enterobacter cloacae indicated more than 90% color removals for all four dyes and optimum decolourization of the dye mixture was observed at 40 °C and pH 7. The developed bacterial consortium decolourized 60% of dyes in textile industry effluent at 35 °C and pH 7 showing their ability to endure in highly complex and toxic environments and application in textile industry wastewaters.

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Ahmad Nasir, Nor Atikah Husna, Noor Farazian Zafira Che Pa, Muhammad Akmal Roslani, Rohayu Ramli, and Nor Azimah Mohd Zain. "Decolourization of Turqoise Blue (Remazol Blue BB) Dye by Immobilized Penicillium sp. into Sodium-Alginate-Sulfate Beads." Jurnal Intelek 14, no. 2 (2019): 153–60. http://dx.doi.org/10.24191/ji.v14i2.231.

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Turqoise blue (Remazol Blue BB) is a type of common dye which is constantly discharged from industriesinto the water bodies without proper treatment. This dye could affect aquatic and human life due to itstoxicity. Existing methods to overcome this issue are too expensive and not eco-friendly. Alternatively, thisstudy was conducted by immobilizing Penicillium sp. into sodium-alginate-sulfate beads (IC) to decolorizethe turquoise blue dye at 10 ppm. The percentage of dye decolourization, Chemical Oxygen Demand (COD)removal and laccase of IC and free cells were analysed throughout this study. IC successfully decolourizeddyes up to 72.83%, meanwhile, free cells could only decolourized dyes up to 56.59%. In addition, CODremoval by IC cell is 31.92% higher compared to free cell. For laccase activity, IC is higher compared tofree cells up to 30%. Based on higher decolourization, enzymatic activity and COD removal, IC has apotential to be an alternative to decolourize dyes better than free cells. Keywords: immobilized cells, free cells, decolourization, dyes, laccase

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10

Dahiwade, Suchita, Dr A. O. Ingle Dr. A. O. Ingle, and Dr S. R. Wate Dr. S. R. Wate. "Effect of Nitrogen Sources on the AZO Dye Decolourization." International Journal of Scientific Research 2, no. 7 (2012): 424–26. http://dx.doi.org/10.15373/22778179/july2013/143.

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Dissertations / Theses on the topic "Dye decolourization"

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Türgay, Orcun. "Decolourization of azo dyes in textile wastewater by microbial processes." Thesis, Växjö University, School of Technology and Design, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-7425.

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<p>Decolorization of Azo dyes in synthetic wastewater composition which is similar to real textile wastewater was carried out by microbial process. Experiments were performed in two continuous systems. Experiments were performed under anaerobic conditions in order to break the nitrogen bond of the azo group (-N=N-). A synthetic dye solution which contained 200 mg/L Reactive Black 5, 200 mg/L Procion Red MX-5B and 1 g/L yeast extract was prepared. In this study, living microorganisms were used to degrade the dyes in wastewater. Rice husks which contain bacteria and fungi were used in the reactors of continuous systems. The parameters tested on continuous system were wastewater composition, the number of reactors, the amount of yeast extract in wastewater composition, the wastewater flowrate, washing the system with wood chips solution, addition of yeast extract solution. Results have shown that increasing the number of reactors, the retention time, the amount of yeast extract and washing the system with wood chips solution had positive effects for degradation of the dyes from wastewater. When the flowrate was increased the retention time has decreased so degradation of dyes has decreased but although the flowrate increased twice, % degradation hasn’t decreased as the same ratio. Therefore this result showed that this process can be worked for faster flowrates. Microbial process is a promising technology which might be used to treat wastewater containing azo dyes with good performance.</p><p> </p>

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2

Purnama, Herry. "Photocatalytic and photoelectrocatalytic Decolourization of Dyes by Titanium dioxide." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506503.

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3

Palacios, Sara. "Decolourization of azo and anthraquinone dyes by mean of microorganisms growing on wood chips." Thesis, Växjö University, School of Technology and Design, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5168.

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<p>Reactive Black 5 and Procion Red MX 5B, an azo and anthraquinone dye repectively were decoulorized by mean of microorganisms growing on wood chips. The process consisted of three reactors, two anaerobic reactors and one aerobic reactor. The anaerobic process was used in order to make it possible to break the nitrogen bond of the azo group, (-N=N-) and the aerobic one to increase the possibility for the degradation of possible intermediates. After pumping wastewater through the system it was shown that mixtures or Reactive Black 5 and Procion Red MX 5B were efficiently decolourised at 50 mg/l as well as 200 mg/l of each of the dyes.</p><p><strong> </strong></p>

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4

Champagne, Paul-Philippe. "Dye decolourization by immobilized laccase and impact of auxiliary chemicals on dye decolourization." Thesis, 2009. http://hdl.handle.net/1974/1947.

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Textile dyes are molecules designed to impart a permanent colour to textile fabrics. They pose an environmental problem because they are toxic and they decrease the aesthetic value of rivers and lakes. Current technologies for dye removal cannot remove all classes of dyes and two or more technologies are usually combined to achieve statisfactory decolourization efficiencies. Lignin-degrading enzymes like laccases are potential technologies for dye decolourization and decolourization with immobilized laccase has been intensively investigated. The majority of those studies however have focused on dye disappearance and several reported that significant dye adsorption had occured during the dye removal, making the role of the enzyme unclear. Moreover, textile wastewaters contain auxiliary chemicals that can impact enzymatic dye decolourization and very few studies have evaluated the impact of those substances on laccase. This research evaluated the feasibility of treating dye-contaminated textile wastewaters with an immobilized laccase system. The first sub-objective was to examined the decolourization of Reactive blue 19 (an anthraquinone dye) by Trametes versicolor laccase immobilized on controlled porosity carrier (CPC) silica beads and the second was to analyze the kinetic effects of a non-ionic surfactant Merpol, sodium sulfate, and sodium chloride on laccase decolourization of Reactive blue 19. Decolourization of Reactive blue 19 by immobilized laccase was mainly enzymatic although dye some adsorption occurred. Decolourization led to less toxic by-products from azo and indigoid dyes whereas increased toxicity was observed for anthraquinone dyes. The feasibility of immobilizing laccase on poly(methyl methacrylate) (PMMA) through its sugar residues with a simple procedure was demonstrated and the mass of enzyme immobilized compared well with other commercial acrylic supports. The decolorization of Reactive blue 19 by laccase was inhibited by the non-ionic surfactant, Merpol by substrate depletion. A model describing this inhibition was developed and was validated by a saturated equilibrium binding experiment. While sodium sulfate (ionic strength) had no effect on either ABTS oxidation or dye decolourization, sodium chloride inhibited laccase during dye decolourization and the type and nature of the inhibition depended on the substrate. With ABTS, the inhibition was hyperbolic non-competitive whereas it was parabolic mixed with Reactive blue 19.<br>Thesis (Ph.D, Chemical Engineering) -- Queen's University, 2009-06-16 16:58:47.753

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Book chapters on the topic "Dye decolourization"

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Menaka, S., and S. Rana. "Decolourization Studies of a Novel Textile Dye Degrading Bacterium." In Trends in Asian Water Environmental Science and Technology. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39259-2_5.

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Kumar, Nathan Vinod, K. Subha Rajam, Mary Esther Rani, R. Gunaseeli, and N. D. Kannan. "Prospecting Multiple Enzyme Systems of Mangrove Fungi for Dye Decolourization Potential." In Bioremediation and Sustainable Technologies for Cleaner Environment. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-48439-6_24.

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Prakash, P., M. Dexilin, B. Gowri Manogri, and K. Thamaraiselvi. "Optimization of Bacillus sp. (KTSMBNL-16) for Decolourization of Dye AV90 Using Batch Studies." In Integrated Waste Management in India. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27228-3_19.

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Kumar, Lavneet, Ina Thakur, Anoop Verma, B. S. Bhatia, and Charanjit Kaur Mangat. "Degradation and Decolourization of Methyl Orange Dye Using Fe-TiO2 Hybrid Technology (Photo-Fenton and Photocatalysis) in Fixed-Mode." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9554-7_5.

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Gümüşdere, H. Tuğba, Tuba Artan, Afife Güvenç, Gönül Dönmez, and Ülkü Mehmetoğlu. "Textile Azo Dyes Decolourization by Combined Ultrasonication and Microbial Removal." In Survival and Sustainability. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-95991-5_83.

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Agrawal, Shweta, Devayani Tipre, Bhavesh Patel, and Shailesh Dave. "Bacterial Decolourization, Degradation and Detoxification of Azo Dyes: An Eco-friendly Approach." In Microbial Applications Vol.1. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52666-9_4.

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Gupta, Sachin, Sudheer K. Annepu, Baby Summuna, Moni Gupta, and Sunil A. Nair. "Role of Mushroom Fungi in Decolourization of Industrial Dyes and Degradation of Agrochemicals." In Fungal Biology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-02622-6_8.

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Pavko, Aleksander. "Fungal Decolourization and Degradation of Synthetic Dyes Some Chemical Engineering Aspects." In Waste Water - Treatment and Reutilization. InTech, 2011. http://dx.doi.org/10.5772/16120.

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Conference papers on the topic "Dye decolourization"

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Kzar, Khulood Obaid, Zainab Fadil Mohammed, Shaymaa Ibrahim Saeed, et al. "Heterogeneous photo-decolourization of cobaltous phthalocyaninate dye (reactive green dye) catalyzed by ZnO." In THE 7TH INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5123061.

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Madhushika, Hewayalage Gimhani, Thilini U. Ariyadasa, and S. H. P. Gunawardena. "Decolourization of Reactive Red EXF Dye by Isolated Strain Proteus Mirabilis." In 2018 Moratuwa Engineering Research Conference (MERCon). IEEE, 2018. http://dx.doi.org/10.1109/mercon.2018.8421983.

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Kambalagere, Yogendra, Madhusudhana M, and Mahadevan K M. "Decolourization of Fast Red Acid dye using Photoactive Bi2O3 Nanoparticle under Solar Irradiation." In International conference on Future Environment Pollution and Prevention. SCITEPRESS - Science and Technology Publications, 2019. http://dx.doi.org/10.5220/0008652200110016.

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Ma, Wei, Bo-Kai Cao, Sai-Nan Xu, Da-Ming Chen, and Yong Chen. "Activated Carbon/Polyvinyl Formal Sponge as a Carrier for Laccase Immobilization for Dyes Decolourization." In The 2nd Annual International Workshop on Materials Science and Engineering (IWMSE 2016). WORLD SCIENTIFIC, 2017. http://dx.doi.org/10.1142/9789813226517_0049.

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