Evaluation of bacteria isolated from textile wastewater and rhizosphere to simultaneously degrade azo dyes and promote plant growth

Shafqat, Mateen; Khalid, Azeem; Mahmood, Tariq; Siddique, Muhammad Tariq; Han, Jong‐In; Habteselassie, Mussie Y.

doi:10.1002/jctb.5357

Cited by 31 publications

(14 citation statements)

References 78 publications

(84 reference statements)

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“…Reactive Black 5 (dye content ≥ 50%, Sigma-Aldrich, RB5) is the commonly used azo-dye chosen as model molecule to examine bacterial decolorization capability [3]. Rhizospheric strains were thus tested for RB5 decolorization capacity, while a selection of these rhizospheric strains was also tested for the capacity to decolorize different dyes used by a textile company located in Tunisia: Bezactive rouge S-Matrix, Tubantin blue and Blue S-2G.…”

Section: Methodsmentioning

confidence: 99%

“…Azo-dyes, which are the most used dyes in the textile manufacturing, are xenobiotic compounds highly recalcitrant to degradation processes: their improper discharge in aqueous ecosystems leads to a reduction in water sunlight penetration, which decreases photosynthetic activity and dissolved oxygen concentration, besides having toxic effects on aquatic flora and fauna [2]. These synthetic molecules, which are also applied in other commercial sectors such as printing, cosmetics and food industries [3,4], represent a relevant environmental and health issue, in particular in those countries where wastewater is used for irrigation purposes without prior proper treatments [3]. Reactive azo-dyes are recalcitrant to conventional wastewater treatment processes and in some cases up to 90% of these molecules could remain unprocessed after activated sludge treatment [5].…”

Section: Introductionmentioning

confidence: 99%

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Root Bacteria Recruited by Phragmites australis in Constructed Wetlands Have the Potential to Enhance Azo-Dye Phytodepuration

et al. 2019

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The microbiome associated with plants used in phytodepuration systems can boost plant growth and services, especially in ecosystems dealing with recalcitrant compounds, hardly removed via traditional wastewater (WW) treatments, such as azo-dyes used in textile industry. In this context, we aimed to study the cultivable microbiome selected by Phragmites australis plants in a Constructed Wetland (CW) in Morocco, in order to obtain candidate inoculants for the phytodepuration of azo-dye contaminated WW. A collection of 152 rhizospheric and endophytic bacteria was established. The strains were phylogenetically identified and characterized for traits of interest in the phytodepuration context. All strains showed Plant Growth Promotion potential in vitro and 67% of them significantly improved the growth of a model plant in vivo compared to the non bacterized control plants. Moreover, most of the isolates were able to grow in presence of several model micropollutants typically found in WW, indicating their potential use in phytodepuration of a wide spectrum of effluents. The six most promising strains of the collection were tested in CW microcosms alone or as consortium: the consortium and two single inocula demonstrated to significantly increase the removal of the model azo-dye Reactive Black 5 compared to the non bacterized controls.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Root Bacteria Recruited by Phragmites australis in Constructed Wetlands Have the Potential to Enhance Azo-Dye Phytodepuration

et al. 2019

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“…Hence, they lead harmful effects on ecosystem [14]. Various reports are available which shows harmful effects of azo dyes on plants (plant growth and germination) [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A critical review on advances in the practices and perspectives for the treatment of dye industry wastewater

et al. 2020

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Rapid industrialization has provided comforts to mankind but has also impacted the environment harmfully. There has been severe increase in the pollution due to several industries, in particular due to dye industry, which generate huge quantities of wastewater containing hazardous chemicals. Although tremendous developments have taken place for the treatment and management of such wastewater through chemical or biological processes, there is an emerging shift in the approach, with focus shifting on resource recovery from such wastewater and also their management in sustainable manner. This review article aims to present and discuss the most advanced and state-of-art technical and scientific developments about the treatment of dye industry wastewater, which include advanced oxidation process, membrane filtration technique, microbial technologies, bio-electrochemical degradation, photocatalytic degradation, etc. Among these technologies, microbial degradation seems highly promising for resource recovery and sustainability and has been discussed in detail as a promising approach. This paper also covers the challenges and future perspectives in this field.

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“…Consequently, the success of any quality management scheme chiefly depends upon how thoroughly wastewaters are characterized and how effective and sustainable the selected treatment scheme is to comply with the effluent limitations. Textile activities usually generate strong wastewaters in terms of their organic carbon (COD) and color content and they are subject to stringent effluent limitations …”

Section: Introductionmentioning

confidence: 99%

Pollutant footprint analysis for wastewater management in textile dye houses processing different fabrics

Sözen

Dulkadiroğlu

Yücel

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND This study investigated the water and pollution footprints of a dye house, which processed cotton knits, polyester (PES) knits and PES‐viscose woven fabrics. Experimental evaluation was carried out for each processing sequence. Variations in wastewater flow and quality were established as a function of the production program in the plant. A model evaluation of wastewater dynamics was performed and defined specifications of an appropriate treatment scheme. RESULTS The plant was operated with a capacity of 4300 t year−1 of fabric, which generated a wastewater flow of 403 500 m3 year−1 and a COD load of 675 t year−1. The overall wastewater footprint of the plant was computed as 91 m3 t−1 and the COD footprint as 160 kg t−1 of fabric. Depending on the fabric type, results indicated expected changes in wastewater flow between 600 and 1750 m3 day−1; in COD load between 1470 and 2260 kg day−1 and in COD concentration between 1290 and 3400 mg L−1. CONCLUSION A model simulation structured upon COD fractionation and related process kinetics revealed partial removal of slowly biodegradable COD, coupled with high residual COD, which would by‐pass treatment. Resulting biodegradation characteristics necessitated an extended aeration system, which could also enable partial breakdown of residual COD. Effluent COD could be reduced to 220–320 mg L−1 with this wastewater management strategy. © 2018 Society of Chemical Industry

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Evaluation of bacteria isolated from textile wastewater and rhizosphere to simultaneously degrade azo dyes and promote plant growth

Cited by 31 publications

References 78 publications

Root Bacteria Recruited by Phragmites australis in Constructed Wetlands Have the Potential to Enhance Azo-Dye Phytodepuration

Root Bacteria Recruited by Phragmites australis in Constructed Wetlands Have the Potential to Enhance Azo-Dye Phytodepuration

A critical review on advances in the practices and perspectives for the treatment of dye industry wastewater

Pollutant footprint analysis for wastewater management in textile dye houses processing different fabrics

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