Biological methods for textile dye removal from wastewater: A review

Bhatia, D. S.; Sharma, Neeta; Singh, Joginder; Kanwar, Rameshwar S.

doi:10.1080/10643389.2017.1393263

Cited by 671 publications

(277 citation statements)

References 158 publications

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“…There are also several reports in literature which illustrated that TiO 2 based nanotubes can effectively be used in removal of pollutants (organic pollutants such as azo dyes, Congo red, phenol aromatic base pollutants, toluene, dichlorophenol trichlorobenzene, chlorinated ethene, etc.) from waste water [37][38][39][40][41]. However, the most common and significant metal oxide nanophotocatalyst are SiO 2 , ZnO, TiO 2 , Al 2 O 3 , etc.…”

mentioning

confidence: 99%

Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

522

160

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Water is an essential part of life and its availability is important for all living creatures. On the other side, the world is suffering from a major problem of drinking water. There are several gases, microorganisms and other toxins (chemicals and heavy metals) added into water during rain, flowing water, etc. which is responsible for water pollution. This review article describes various applications of nanomaterial in removing different types of impurities from polluted water. There are various kinds of nanomaterials, which carried huge potential to treat polluted water (containing metal toxin substance, different organic and inorganic impurities) very effectively due to their unique properties like greater surface area, able to work at low concentration, etc. The nanostructured catalytic membranes, nanosorbents and nanophotocatalyst based approaches to remove pollutants from wastewater are eco-friendly and efficient, but they require more energy, more investment in order to purify the wastewater. There are many challenges and issues of wastewater treatment. Some precautions are also required to keep away from ecological and health issues. New modern equipment for wastewater treatment should be flexible, low cost and efficient for the commercialization purpose.

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mentioning

confidence: 99%

Role of Nanomaterials in the Treatment of Wastewater: A Review

Yaqoob

Parveen

Umar

et al. 2020

Water

522

160

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“…Figure 5 shows the drastic change in effluent color, which corresponds to the obtained efficiency (69%). We monitored the enzymatic activity of the microorganism [19,31]; this is the reason why its presence in this study turned out to be positive.…”

Section: Reactor Assembly and Testingmentioning

confidence: 90%

“…In fungal treatment, a direct approach followed by the active culture of selected fungi or the purification of extracellular enzymes produced is used; the former presents the advantage of allowing researchers to skip the enzymatic purification step (which can be quite painful and expensive) [18,19]. In such cases, systems that favor enzymatic production are required along with the control of the most critical variables in the process.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the scale-up of a reactor for the treatment of textile effluents using Bjerkandera sp

Gaviria

Osorio-Echavarría

Gómez-Vanegas

2018

Rev. Fac. Ing. Univ. Antioquia

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Effluents from the textile industry have a negative environmental impact due to their high load of dyes and hard-to-remove compounds: additives, detergents, and surfactants; these must be treated before effluents can be discharged into water. White-rot fungi show great potential for the bioremediation of water and soil matrices contaminated with recalcitrant pollutants (these are generally toxic). In this work, we designed a 5 L fixed bed reactor and evaluated its performance on the degradation of pollutants in effluents from the textile industry in continuous-operation mode under non-sterile conditions, using ligninolytic fungus Bjerkandera sp. (anamorphic state R1). This setup was based on a previous design of a 0.25 L fixed-bed model bioreactor. The system was designed by taking into account the geometric and hydrodynamic similarities of both setups. In continuous-mode color-removal assays, the bioreactor was operated at a 36 h Hydraulic retention time (HRT), a 1 L/min air flux at 33°C, and a dye concentration of 75 g/L (sulfur black 1) and 6.5 g/L (indigo Vat blue 1). 69% of the dye was removed, and changes in the chemical structures of the dyes confirmed the ligninolytic activity of the microorganism as the main dye removal mechanism.. RESUMEN: Los efluentes provenientes de industrias textiles generan impactos ambientales negativos, debido a altas cargas de colorantes y compuestos de difícil remoción como aditivos, detergentes y surfactantes, los cuales deben ser tratados antes de ser descargados a cuerpos de agua. Los hongos ligninolíticos han mostrado gran potencial para procesos de biorremediación de aguas y suelos contaminados con compuestos recalcitrantes y generalmente tóxicos. Este trabajo, se enfoca en el diseño y evaluación del desempeño de un reactor de 5L de lecho fijo para la degradación de efluentes de la industria textil en condiciones no estériles y operación continua, usando el hongo ligninolítico Bjerkandera sp. en su estado anamorfo R1. Dicha tecnología se desarrolló tomando como base para realizar el diseño un biorreactor modelo de lecho de fijo de 0,25 L. El sistema de 5L se diseñó teniendo en cuenta la similitud geométrica e hidrodinámica. En los ensayos de decoloración en continuo el reactor se operó a un tiempo de retención hidráulica (TRH) de 36 h, aireación de 1 L/min y 33°C, además de una carga de colorante de 75g/L para el Negro sulfuroso y 6,5g/L para índigo Vatblue; se alcanzó una decoloración del 69% y se identificaron cambios en las estructuras químicas de los colorantes presentes en el agua residual después del tratamiento, mostrando la actividad ligninolítica del microorganismo como el principal mecanismo de remoción de color.

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“…Around 60,000 metric tons of dyes are produced in India for the dye industry, that approximates 6.6% of total colorants used worldwide (Teli, 2008). The dyeing process in textile industries involves more than 8,000 chemical products that include sulfides, salts, formaldehydes, metals and surfactants (Bhatia et al, 2017). During this process, approximately 10-25% of dyes used have been lost and about 2-20% of it is discharged with effluents in different environmental components (Ahmed et al, 2012).…”

Section: Introductionmentioning

confidence: 99%