Pilot scale treatment of textile wastewater by combined process (fluidized biofilm process–chemical coagulation–electrochemical oxidation)

Kim, Tak-Hyun; Park, Chulhwan; Lee, Jinwon; Shin, Eung‐Bai; Kim, Sang Yong

doi:10.1016/s0043-1354(02)00113-6

Cited by 116 publications

(66 citation statements)

References 16 publications

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“…The reduction percentages were shown in Table I. This was similar to the work (Kim et al, 2002) has explained, a decrease of COD removal efficiency by 20% was observed in fourth day due to the sloughing of biofilm in the fixed film bioreactor.…”

Section: Resultssupporting

confidence: 86%

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Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Rajendran¹,

Prabhavathi²,

Karthiksundaram³

et al. 2015

Pol J Microbiol

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A b s t r a c tThe present experiments were studied on bioremediation of denim industry wastewater by using polyurethane foam (PU foam) immobilized bacterial cells. About 30 indigenous adapted bacterial strains were isolated from denim textile effluent out of which only four isolates were found to be efficient against crude indigo carmine degradation using broth decolorization method. The selected bacterial strains were identified as Actinomyces sp., (PK07), Pseudomonas sp., (PK18), Stenotrophomonas sp., (PK23) and Staphylococcus sp., (PK28) based on microscopic and biochemical characteristics. The bacterial immobilized cells have the highest number of viable cells (PK07, PK18, PK23 and PK28 appeared to be 1 × 10 8 , 1 × 10 9 , 1 × 10 6 and 1 × 10 7 CFU/ml respectively) and maximum attachment efficiency of 92% on PU foam. The complete degradation using a consortium of PU foam immobilized cells was achieved at pH 6, 27°C, 100% of substrate concentration and allowed to develop biofilm for one day (1.5% W/V). In SEM analysis, it was found that immobilization of bacterial cells using PUF stably maintained the production of various extracellular enzymes at levels higher than achieved with suspended forms. Finally, isatin and anthranilic acid were found to be degradation products by NMR and TLC. The decolorized dye was not toxic to monkey kidney cell (HBL 100) at a concentration of 50 µl and 95% of cell viability was retained. A mathematical model that describes bacterial transport with biodegradation involves a set of coupled reaction equations with non-standard numerical approach based on the time step scheme. K e y w o r d s: biobarrier model, bioflim, bioremediation, cytotoxicity test, polyurethane foam, secondary metabolites

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Section: Resultssupporting

confidence: 86%

“…The storage stability and microbial activity of encapsulated cells in PUF are better than those of cells encapsulated in Ca-alginate beads as well as pure broth culture. Similar works (Kim et al, 2002;Forgas et al, 2004) have explained the efficiency of decolorization and biodegradation enhanced by the absorption of the dye on the biomass.…”

Section: Resultsmentioning

confidence: 67%

Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Rajendran¹,

Prabhavathi²,

Karthiksundaram³

et al. 2015

Pol J Microbiol

View full text Add to dashboard Cite

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“…The principal oxidising agent in electrochemical process is hypochlorite ion or hypochlorous acid produced from naturally occuring chloride ions. Hydroxyl radical and other reactive species also participate in electrochemical oxidation of organics (Kim et al, 2002) that can be achieved directly or indirectly at the anode. The breakdown compounds are generally not hazardous being discharged into watercourses without important environmental and health risks.…”

Section: Wwwintechopencommentioning

confidence: 99%

Textile Organic Dyes – Characteristics, Polluting Effects and Separation/Elimination Procedures from Industrial Effluents – A Critical Overview

Zaharia¹,

Șuteu²

2012

Organic Pollutants Ten Years After the Stockholm Convention - Environmental and Analytical Update

326

201

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“…The attractive features of biological treatment are low cost, renewable and regenerative activity and little or no secondary hazard (20,21,22). The conventional biological processes are not effective because the dye content in the textile effluent is toxic to the microorganisms used (23,24).…”

Section: Introductionmentioning

confidence: 99%

Biodecolourization of Textile Effluent using Mutagenised Strains of Pseudomonas and Bacillus species Isolated from Dyed Contaminated Soil.

W.C¹

2013

IOSR-JESTFT

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Pilot scale treatment of textile wastewater by combined process (fluidized biofilm process–chemical coagulation–electrochemical oxidation)

Cited by 116 publications

References 16 publications

Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Biodecolorization and Bioremediation of Denim Industrial Wastewater by Adapted Bacterial Consortium Immobilized on Inert Polyurethane Foam (PUF) Matrix: A First Approach with Biobarrier Model

Textile Organic Dyes – Characteristics, Polluting Effects and Separation/Elimination Procedures from Industrial Effluents – A Critical Overview

Biodecolourization of Textile Effluent using Mutagenised Strains of Pseudomonas and Bacillus species Isolated from Dyed Contaminated Soil.

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