Immobilized ligninolytic enzymes: An innovative and environmental responsive technology to tackle dye-based industrial pollutants – A review

Bilal, Muhammad; Asgher, Muhammad; Parra‐Saldívar, Roberto; Hu, Hongbo; Wang, Wei; Zhang, Xuehong; Iqbal, Hafiz M.N.

doi:10.1016/j.scitotenv.2016.10.137

Cited by 340 publications

(114 citation statements)

References 114 publications

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“…Environmental pollution and energy shortage are two major problems facing today‘s society. As industry and the economy continue to grow, and the demand for energy continues to increase, the natural environment on which humans depend for survival is increasingly polluted . These pollutants include organic compounds (such as organic pesticides, polycyclic aromatic hydrocarbons, and phenols) and inorganic substances (such as As(III), Cd(II), and Cr(VI)) .…”

Section: Introductionmentioning

confidence: 99%

“…As industry and the economy continue to grow, and the demand for energy continues to increase, the natural environment on which humans depend for survival is increasingly polluted. [1][2][3][4][5] These pollutants include organic compounds (such as organic pesticides, polycyclic aromatic hydrocarbons, and phenols) and inorganic substances (such as As(III), Cd(II), and Cr(VI)). [6][7][8][9][10][11] They have been continuously accumulated and enriched in water, air, and soil, [12][13][14][15] and causing serious damage to the natural environment and threatening the survival of animals, plants and human beings.…”

Section: Introductionmentioning

confidence: 99%

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Strategies for Improving the Performance and Application of MOFs Photocatalysts

Luo

Wu³

et al. 2019

ChemCatChem

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Residual pollutants in the water treatment process restrict the advanced treatment and purification of wastewater, because most of them have stable structures, and some are not easily to be enriched. Photocatalytic oxidation technology can directly use solar energy to drive a series of chemical reactions, which has advantages such as low energy consumption, mild reaction conditions and rarely secondary pollution. It is an effective way to solve the organic pollution problem in wastewater treatment. The key to this process is to find and design efficient photocatalysts. The current photocatalytic materials mainly include inorganic semiconductors and metal organic frameworks (MOFs). They have been studied for pollutants degradation, hydrogen evolution, CO2 reduction, and organic transformation. But, most of these catalysts have not been used in real application. In this paper, recent research advances in MOFs photocatalysts and the key factors affecting their photocatalytic efficiency were critically reviewed. It is believed that the pursuit of more efficient photocatalyst needs to be considered from the adsorption‐photocatalytic mechanism, redox‐free radical mechanism, valence‐level regulation mechanism and energy transfer mechanism of photocatalysis. It is very necessary to research and develop nanoscale and quantum level mixed valence MOFs photocatalysts, which are constructed by strong electron‐donating groups.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Luo

Wu³

et al. 2019

ChemCatChem

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“…Release of industrial effluents to the environment have aroused serious concerns all over the world for the toxic effects of effluents, such as mutagenic and carcinogenic action to aquatic biota and humans or simply almost nonbiodegradable materials in these effluents (1,2).…”

Section: Introductionmentioning

confidence: 99%

Development of Aerobic Granular Sludge for Chemical Industries Wastewater Treatment

et al. 2018

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Background: The world's chemical industries are confronted with formidable environmental regulatory challenges in treating their wastewaters. Aerobic granulation is increasingly drawing interest of researchers engaging work in the area of biological wastewater treatment. Objectives: The objective is to develop a new cost-effective technique for treatment of chemical industry effluents. The possibility and effectiveness of this new enhanced biological treatment system were determined through mean diameter, relative hydrophobicity, sphericity, and sludge volume index (SVI5) of aerobic microbial aggregates. Scanning electron microscopy (SEM) analysis was also used to characterize the granules. Methods: The granules were cultivated in a single sequencing batch reactor (SBR) system fed with synthetic ethylene glycol (MEG) wastewater. The characteristics of the aerobic granular sludge were monitored during the study period. Results: Aerobic granules with dense and strong microbial structure as well as excellent settling ability were cultivated. Developed

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“…Textile industries discharge great amounts of effluents to the environment, and about 15-20% of dyes are lost in the effluents during the dyeing process [1,2]. Since synthetic dyes are designed to be chemically and photolytically stable, they are highly persistent and their removal from wastewater is rather difficult.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, laccase-catalyzed decolorization has received much attention due to its potential ability to degrade of a wide range of dyes [2,8]. Laccases (EC 1.10.3.2) are enzymes that belong to the broader family of multicopper oxidases.…”

Section: Introductionmentioning

confidence: 99%

Improving the Indigo Carmine Decolorization Ability of a Bacillus amyloliquefaciens Laccase by Site-Directed Mutagenesis

Wang

Feng

2017

Catalysts

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Indigo carmine is a typical recalcitrant dye which is widely used in textile dyeing processes. Laccases are versatile oxidases showing strong ability to eliminate hazardous dyes from wastewater. However, most laccases require the participation of mediators for efficient decolorization of indigo carmine. Here we describe the improvement of the decolorization ability of a bacterial laccase through site-directed mutagenesis. A D501G variant of Bacillus amyloliquefaciens laccase was constructed and overexpressed in Escherichia coli. The laccase activity in the culture supernatant achieved 3374 U·L −1 for the mutant. Compared with the wild-type enzyme, the D501G exhibited better stability and catalytic efficiency. It could decolorize more than 92% of indigo carmine without additional mediators in 5 h at pH 9.0, which was 3.5 times higher than the wild-type laccase. Isatin sulfonic acid was confirmed to be the main product of indigo carmine degradation by UV-vis and LC-MS analyses.

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Immobilized ligninolytic enzymes: An innovative and environmental responsive technology to tackle dye-based industrial pollutants – A review

Cited by 340 publications

References 114 publications

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Development of Aerobic Granular Sludge for Chemical Industries Wastewater Treatment

Improving the Indigo Carmine Decolorization Ability of a Bacillus amyloliquefaciens Laccase by Site-Directed Mutagenesis

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