Ecofriendly biodegradation of Reactive Black 5 by newly isolated Sterigmatomyces halophilus SSA1575, valued for textile azo dye wastewater processing and detoxification
Abstract:A total of seven yeast strains from 18 xylanolytic and/or xylose-fermenting yeast species isolated from the wood-feeding termite
Reticulitermes chinenesis
could efficiently decolorize various azo dyes under high-salt conditions. Of these strains, a novel and unique azo-degrading and halotolerant yeast,
Sterigmatomyces halophilus
SSA1575, has been investigated in this study. This strain could significantly decolorize four combinations of a mixture of dyes. It showed… Show more
“…Bacterial treatment Isolation of new strains or consortia from activated sludge, oxidation ditch, palm oil mill effluent or desert soil, alkali-, haloand thermophilic strains implementation, consortium with algae, bacteria immobilization, co-substrate addition, proposal of mechanisms, pathways genome and transcriptome analysis [109][110][111][112][113][114][115][116][117][118][119] Fungal treatment Implementation of microbial consortium (e.g., yeast consortium with ability of lignin valorization dye treatment and biodiesel production), fungi immobilization, isolation of new strains from plant roots or effluent site [120][121][122][123][124][125][126][127][128][129][130] Enzyme treatment Optimization of enzyme production, enzyme immobilization, metabolites and toxicity assessment [131][132][133][134][135][136] Algal treatment…”
Section: Current Development Referencesmentioning
confidence: 99%
“…Among the microorganisms that are able to produce enzymes necessary for dye degradation under aerobic conditions, white-rot fungi are the most efficient [215,231]. However, experiments were conducted on bacteria (especially Streptomyces) [34,119,134], yeast [127], and other fungi [120,124,128,202,203] for the implementation of aerobic dye removal. Although bacterial laccase is less efficient in the azo bond cleavage than fungal laccase, this drawback may be partially overcome by the addition of a natural redox mediator-methyl syringate in 0.5 mM concentration led to the Acid Orange 63 decolorization increase from 0 to 35% [34].…”
In the last 3 years alone, over 10,000 publications have appeared on the topic of dye removal, including over 300 reviews. Thus, the topic is very relevant, although there are few articles on the practical applications on an industrial scale of the results obtained in research laboratories. Therefore, in this review, we focus on advanced oxidation methods integrated with biological methods, widely recognized as highly efficient treatments for recalcitrant wastewater, that have the best chance of industrial application. It is extremely important to know all the phenomena and mechanisms that occur during the process of removing dyestuffs and the products of their degradation from wastewater to prevent their penetration into drinking water sources. Therefore, particular attention is paid to understanding the mechanisms of both chemical and biological degradation of dyes, and the kinetics of these processes, which are important from a design point of view, as well as the performance and implementation of these operations on a larger scale.
“…Bacterial treatment Isolation of new strains or consortia from activated sludge, oxidation ditch, palm oil mill effluent or desert soil, alkali-, haloand thermophilic strains implementation, consortium with algae, bacteria immobilization, co-substrate addition, proposal of mechanisms, pathways genome and transcriptome analysis [109][110][111][112][113][114][115][116][117][118][119] Fungal treatment Implementation of microbial consortium (e.g., yeast consortium with ability of lignin valorization dye treatment and biodiesel production), fungi immobilization, isolation of new strains from plant roots or effluent site [120][121][122][123][124][125][126][127][128][129][130] Enzyme treatment Optimization of enzyme production, enzyme immobilization, metabolites and toxicity assessment [131][132][133][134][135][136] Algal treatment…”
Section: Current Development Referencesmentioning
confidence: 99%
“…Among the microorganisms that are able to produce enzymes necessary for dye degradation under aerobic conditions, white-rot fungi are the most efficient [215,231]. However, experiments were conducted on bacteria (especially Streptomyces) [34,119,134], yeast [127], and other fungi [120,124,128,202,203] for the implementation of aerobic dye removal. Although bacterial laccase is less efficient in the azo bond cleavage than fungal laccase, this drawback may be partially overcome by the addition of a natural redox mediator-methyl syringate in 0.5 mM concentration led to the Acid Orange 63 decolorization increase from 0 to 35% [34].…”
In the last 3 years alone, over 10,000 publications have appeared on the topic of dye removal, including over 300 reviews. Thus, the topic is very relevant, although there are few articles on the practical applications on an industrial scale of the results obtained in research laboratories. Therefore, in this review, we focus on advanced oxidation methods integrated with biological methods, widely recognized as highly efficient treatments for recalcitrant wastewater, that have the best chance of industrial application. It is extremely important to know all the phenomena and mechanisms that occur during the process of removing dyestuffs and the products of their degradation from wastewater to prevent their penetration into drinking water sources. Therefore, particular attention is paid to understanding the mechanisms of both chemical and biological degradation of dyes, and the kinetics of these processes, which are important from a design point of view, as well as the performance and implementation of these operations on a larger scale.
“… Fig. 2 Peristaltic pump [1] , ZnO synthesized nanoparticles on stone bed [2] , UV lamp [3] , cubic reactor [4] , Transformer [5] . …”
Section: Reactor Design and The Process Operationmentioning
confidence: 99%
“…350 mL of solution was poured inside the reactor in the presence of UV lamps and ozone. After that, the effects of various dye concentrations (25, 50, 75, 100 mg/L), different pH's [4 , 7 , 9 , 11] , and different times in removal of the dye efficiency (5, 10, 15, 20, 25, 30, 35, 40 min) were investigated. The various processes effects such as SOP, COP, photolysis and photocatalysis were investigated.…”
Section: Reactor Design and The Process Operationmentioning
confidence: 99%
“…Due to azo dyes variety structures and easy to make are the most used among dye compounds [3] . The azo days could cause some environmental and health problems such as cancer, renal and liver dysfunctions [4] . Hence, removal of azo dyes from textile industry wastewater is so necessary.…”
Azo dyes are the largest group of synthetic organic dyes which containing the linkage C—N
N—C and used in various industries such as textile industries leather articles, and some foods. Azo dyes are resistant compounds against the biodegradation processes. The purpose of this research was hybrid UV/COP advanced oxidation process using ZnO as a catalyst immobilized on a stone surface for degradation of acid red 18 (AR18) Dye. In the hybrid process using some parameters such as the dye initial concentration, pH, contact time and catalyst concentration, the process efficiency was investigated. In order to the dye removal, the sole ozonation process (SOP), catalytic ozonation process (COP) and photocatalytic process (UV/ZnO) were used. The ZnO nanoparticles were characterized by XRD, SEM and TEM analyses. The maximum dye removal was achieved 97% at the dye initial concentration 25 mg/L, catalyst concentration 3 g/L, contact time 40 min and pH 5. As a real sample, the Yazdbaf textile factory wastewater was selected. After that, the physicochemical quality was evaluated. As well as, in the optimal conditions, the AR18 dye removal efficiency was achieved 65%. The kinetic results demonstrated that the degradation reaction was fitted by
pseudo
-first-order kinetic. The UV/COP hybrid process had high efficiency for removal of resistant dyes from the textile wastewater.
Advantages of this technique were as follows:
ZnO nanoparticles were synthesized as catalyst by thermal method and were immobilized on the stones.
pH changes had no significant effect on the removal efficiency.
In the kinetic studies, the decomposition reaction followed
pseudo
-first order kinetic.
The tremendous increase in human population and industrialization has exacerbated the existing problem of water pollution to a great extent. The textile industry is the major cause of this problem due to its significant use of organic synthetic dyes as coloring materials during the dyeing process. The presence of color in wastewater is a major environmental concern, as these dyes are resistant to degradation by physio-chemical treatments. Bioremediation is an attractive method that can completely degrade these dyes while also being cost-effective. This comprehensive review aims to provide a brief insight into bioremediation based on some of the latest emerging wastewater treatment technologies for the removal of synthetic dyes. Starting with the importance of decolorization of synthetic dyes and their environmental impacts, different physio-chemical treatment technologies are analyzed with a special emphasis on their limitations. The bioremediation of textile wastewater with detailed biodegradation mechanisms using different bacterial species (bacteria, fungal, algae, enzyme, and mixed culture) under aerobic and anaerobic conditions is thoroughly discussed. In this article, the major factors affecting the implementation of biological treatment are explained. In addition, the latest emerging treatment technologies, such as nano-bio materials, genetic engineering, phytoremediation, electro-bioremediation (microbial electrochemistry technology, MET), and integrated/hybrid technologies (such as biological processes with physio-chemical processes, electro-coagulation, adsorption, ultra-filtration, membrane, and advanced oxidation) are critically reviewed; their challenges and the future perspectives in textile wastewater treatment are also highlighted.
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