Development of novel enzymatic bioremediation process for textile industry effluents through response surface methodology

Asgher, Muhammad; Yasmeen, Qamar; Iqbal, Hafiz M.N.

doi:10.1016/j.ecoleng.2013.09.042

Cited by 25 publications

(11 citation statements)

References 26 publications

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“…Numerous methods such as biosorption, bioaccumulation and biodegradation are being used for the treatment of textile effluents and each has its advantages and disadvantages depending upon the operating conditions (Irem et al, 2013). In recent years, efforts have been made for the development of dye biodegradation process using microorganisms (Asgher et al, 2014). Because of their widespread usage, lot of work has been carried out on removal of azo dye from wastewater by different microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Removal of Remazol Blue by azoreductase from newly isolated bacteria

Karatay

Kılıç

Dönmez

2015

Ecological Engineering

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Section: Introductionmentioning

confidence: 99%

Removal of Remazol Blue by azoreductase from newly isolated bacteria

Karatay

Kılıç

Dönmez

2015

Ecological Engineering

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“…Ganoderma lucidum is an efficient lignin degrading WRF that produces considerable activities of ligninolytic enzymes, particularly manganese peroxidase (MnP). Among the potential applications of MnP are bioremediation, biomass delignification, biopulping, biosensor development, textile finishing and wine stabilization [ 2 , 11 ]. Despite their great potential, the use of native microbial enzymes suffers certain restrictions under industrial process conditions.…”

Section: Introductionmentioning

confidence: 99%

Dye decolorization and detoxification potential of Ca-alginate beads immobilized manganese peroxidase

2015

Self Cite

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BackgroundIn view of compliance with increasingly stringent environmental legislation, an eco-friendly treatment technology of industrial dyes and effluents is a major environmental challenge in the color industry. In present study, a promising and eco‐friendly entrapment approach was adopted to immobilize purified manganese peroxidase (MnP) produced from an indigenous strain of Ganoderma lucidum IBL-05 on Ca-alginate beads. The immobilized MnP was subsequently used for enhanced decolorization and detoxification of textile reactive dyes).ResultsMnP isolated from solid-state culture of G. lucidum IBL-05, presented highest immobilization yield (83.9 %) using alginate beads prepared at optimized conditions of 4 % (w/v) sodium alginate, 2 % (w/v) Calcium chloride (CaCl2) and 0.5 mg/ml enzyme concentration. Immobilization of MnP enhanced optimum temperature but caused acidic shift in optimum pH of the enzyme. The immobilized MnP showed optimum activity at pH 4.0 and 60 °C as compared to pH 5.0 and 35 °C for free enzyme. The kinetic parameters Km and Vmax of MnP were significantly improved by immobilization. The enhanced catalytic potential of immobilized MnP led to 87.5 %, 82.1 %, 89.4 %, 95.7 % and 83 % decolorization of Sandal-fix Red C4BLN, Sandal-fix Turq Blue GWF, Sandal-fix Foron Blue E2BLN, Sandal-fix Black CKF and Sandal-fix Golden Yellow CRL dyes, respectively. The insolubilized MnP was reusable for 7 repeated cycles in dye color removal. Furthermore, immobilized MnP also caused a significant reduction in biochemical oxygen demand (BOD) (94.61-95.47 %), chemical oxygen demand (COD) (91.18-94.85 %), and total organic carbon (TOC) (89.58-95 %) of aqueous dye solutions.ConclusionsG. lucidum MnP was immobilized in Ca-alginate beads by entrapment method to improve its practical effectiveness. Ca-alginate bound MnP was catalytically more vigorous, thermo-stable, reusable and worked over wider ranges of pH and temperature as compared to its free counterpart. Results of cytotoxicity like hemolytic and brine shrimp lethality tests suggested that Ca-alginate immobilized MnP may effectively be used for detoxification of dyes and industrial effluents.

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“…The bioaugmentation of indigenous microflora by properly selected microorganisms is a promising method that may allow improving the efficiency of degradation and mineralization of dyes with the low environmental impact and without using potentially toxic chemical substances (Karatay et al 2015 ; Lalnunhlimi and Krishnaswamy 2016 ; Paz et al 2017 ; Singh et al 2015 ; Śekuljica et al 2015 ; Yadav et al 2012 ; Yamjala et al 2016 ). In recent years, studies on development of biological decolorization technologies are focused among others on usage of a newly isolated microorganism (Asgher et al 2014 ; Modi et al 2010 ; Ougugbue et al 2011 ; Paz et al 2017 ). The aim of conducted screening investigation was the isolation of the new bacterial strains capable to decolorize various synthetic dyes.…”

Section: Resultsmentioning

confidence: 99%

Possibilities of Obtaining from Highly Polluted Environments: New Bacterial Strains with a Significant Decolorization Potential of Different Synthetic Dyes

Zabłocka-Godlewska

Przystaś

Grabińska-Sota

2018

Water Air Soil Pollut

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The aim of this study was the isolation of bacterial strains which have the ability to decolorize synthetic dyes belonging to different chemical groups. The samples for bacterial isolation were collected from aqueous environments—two activated sludges and polluted local river. At the first stage of screening (performed on the solid media supplemented with two dyes—azo Evans blue or triphenylmethane brilliant green), 67 bacterial strains were isolated capable to decolorize the used dyes. In the further study, six dyes with different chemical structures were used: fluorone dyes (Bengal rose, erythrosine), triphenylmethane dyes (brilliant green, crystal violet), azo dyes (Evans blue, Congo red). Initial concentration of each of these chemicals in samples was 0.1 g/l. Obtained results showed that only 31 isolates were able to decolorize all six used dyes (with different efficiencies). Among them, 11 strains were isolated from the river (55% of isolates from this site) and 20 from activated sludges collected from two different treatment plants (15 from the first water treatment plant and 5 from the second which were 42 and 43% of isolated cultures respectively). The decolorizing microorganisms are mostly isolated from different industrial sewages (e.g., textile industry), but results of the study showed that water from polluted river as well as municipal wastewaters may be a precious source for isolation of bacterial strains with the wide spectrum and high decolorization potential. In general, there were no statistically significant differences between decolorization abilities of strains isolated from different sites. The group of dyes that was removed with the highest yield was triphenylmethanes (75.6%), followed by fluorones (70.0%) and azo group (60.9%). The analysis of decolorization efficiency of the individual dyes revealed the best removal results in case of triphenylmethane brilliant green (average removal 85.7%), followed by fluorone erythrosine (average removal 78.9%), triphenylmethane crystal violet (average removal 65.5%), azo Evans blue (average removal 64.4%), fluorone Bengal rose (average removal 61.0%), and azo Congo red (average removal 57.4%). Obtained results revealed that the dye susceptibility to decolorization depends on the characteristic chemical structure of given dye groups but more important is chemical structure of strictly given dye within the group.

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Development of novel enzymatic bioremediation process for textile industry effluents through response surface methodology

Cited by 25 publications

References 26 publications

Removal of Remazol Blue by azoreductase from newly isolated bacteria

Removal of Remazol Blue by azoreductase from newly isolated bacteria

Dye decolorization and detoxification potential of Ca-alginate beads immobilized manganese peroxidase

Possibilities of Obtaining from Highly Polluted Environments: New Bacterial Strains with a Significant Decolorization Potential of Different Synthetic Dyes

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