Elucidation of Biochemical Mechanism Involved in Microbial Degradation of 1:1 Metal Complex Dye Containing Simulated Wastewater

Patel, Darshna K.; Tipre, Devayani R.; Patel, Tallika L.; Kadam, Avinash A.; Agarwal, Seema; Dave, Shailesh R.

doi:10.20546/ijcmas.2018.703.320

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…Toxicity study of real textile e uent and e uent treated in PBBR and PBBR-charcoal reactor.Similar results have been observed byPatel et al, (2018) while studying the reduction in toxicity of two simulated wastewaters containing 1:1 metal complex acid dyes namely, Acid blue 158 and Acid black 52, separately, by a developed bacterial consortium. Toxicity was found negligible in the case of seeds of Sorghum bicolor as 100% seed germination was observed whereas, in the case of Cicer aeriatinum, seed germination was inhibited by 20 and 60% with untreated AB158 and AB52, respectively.…”

supporting

confidence: 84%

“…Phytotoxicity was studied at room temperature. Ten seeds each of Cicer arietinum L. and Vigna radiata L. were treated separately with 10 mL of the PBBR treated, PBBR-charcoal reactor treated, untreated textile e uent, and control (distilled water) in three separate systems to each respective seed and after 7 d, germination (%), length of radical (cm) and plumule (cm) were measured (Patel et al 2018).…”

Section: Phytotoxicitymentioning

confidence: 99%

“…The decolourised broth after cell separation was extracted twice using double volumes of ethyl acetate and concentrated in a rotary vacuum evaporator and was determined as described earlier by Patel et al (2018). The FTIR (Fourier Transform Infra-Red) spectra of the dye AB210 and extracted metabolites were obtained in the mid-IR region (400-4000 cm -1 ) at 16-scan speed (Shimadzu, FTIR-8400S, Japan) to study the structural transformations in the dye molecules present in the e uent during the process of dye biodegradation.…”

Section: Uv-visible and Ftir Analysismentioning

confidence: 99%

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Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Agrawal

Tipre

Dave³

2023

World J Microbiol Biotechnol

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This study highlights the development of a lab-scale, indigenously designed; Packed-Bed Bio lm Reactors (PBBR) packed with brick pieces. The developed bio lm in the reactor was used for the decolourisation and biodegradation of the textile industry e uent. The PBBR was continuously operated for 264 days, during which 301 cycles of batch and continuous treatment were operated. In batch mode under optimised conditions, more than 99% dye decolourisation and ≥92% COD reduction were achieved in 6 h of contact time upon supplementation of e uent with 0.25 g L -1 glucose, 0.25 g L -1 urea, and 0.1 g L -1 phosphates. A decolourisation rate of 133.94 ADMI units h -1 was achieved in the process. PBBR, when operated in continuous mode, showed ≥95% and ≥92% reduction in ADMI and COD values. Subsequent aeration and passage through charcoal reactor assisted in achieving ≥96 % reduction in COD and ADMI values. An overall increase of 81% in dye-laden e uent decolourisation rate, from 62 mg L -1 h -1 to 262 mg L -1 h -1 , was observed upon increasing the ow rate from 18 mL h -1 to 210 mL h -1 . Dye biodegradation was determined by UV-Vis and FTIR spectroscopy and toxicity study. SEM analysis showed the morphology of the attached-growth bio lm. HighlightsPacked-Bed Bio lm Reactor with an indigenous consortium was developed for textile e uent treatment.The use of developed consortia and optimisation resulted in more than 92% of COD and 99% of dye removal.FTIR analysis was conducted for the detection and quanti cation of the dye metabolites. SEM analysis was used to examine the morphology of the attached-growth bio lm.The developed reactor was successfully run for 264 d with 301 cycles.

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supporting

confidence: 84%

Section: Phytotoxicitymentioning

confidence: 99%

Section: Uv-visible and Ftir Analysismentioning

confidence: 99%

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Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Agrawal

Tipre

Dave³

2023

World J Microbiol Biotechnol

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“…Similar results have been observed byPatel et al, (2018) while studying the reduction in toxicity of two simulated wastewaters containing 1:1 metal complex acid dyes namely, Acid blue 158 and Acid black 52, separately, by a developed bacterial consortium. Toxicity was found negligible in the case of seeds of Sorghum bicolor as 100% seed germination was observed whereas, in the case of Cicer aeriatinum, seed germination was inhibited by 20 and 60% with untreated AB158 and AB52, respectively.…”

supporting

confidence: 84%

Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Agrawal¹,

Tipre

Dave

2022

Preprint

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This study highlights the development of a lab-scale, indigenously designed; Packed-Bed Biofilm Reactors (PBBR) packed with brick pieces. The developed biofilm in the reactor was used for the decolourisation and biodegradation of the textile industry effluent. The PBBR was continuously operated for 264 days, during which 301 cycles of batch and continuous treatment were operated. In batch mode under optimised conditions, more than 99% dye decolourisation and ≥ 92% COD reduction were achieved in 6 h of contact time upon supplementation of effluent with 0.25 g L− 1 glucose, 0.25 g L− 1 urea, and 0.1 g L− 1 phosphates. A decolourisation rate of 133.94 ADMI units h− 1 was achieved in the process. PBBR, when operated in continuous mode, showed ≥ 95% and ≥ 92% reduction in ADMI and COD values. Subsequent aeration and passage through charcoal reactor assisted in achieving ≥ 96% reduction in COD and ADMI values. An overall increase of 81% in dye-laden effluent decolourisation rate, from 62 mg L− 1 h− 1 to 262 mg L− 1 h− 1, was observed upon increasing the flow rate from 18 mL h− 1 to 210 mL h− 1. Dye biodegradation was determined by UV-Vis and FTIR spectroscopy and toxicity study. SEM analysis showed the morphology of the attached-growth biofilm.

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Microbial Bioremediation of Azo Dyes in Textile Industry Effluent: A Review on Bioreactor‐Based Studies

Agrawal¹,

Tipre

Dave

2019

Soil Microenvironment for Bioremediation and Polymer Production

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Elucidation of Biochemical Mechanism Involved in Microbial Degradation of 1:1 Metal Complex Dye Containing Simulated Wastewater

Cited by 4 publications

References 20 publications

Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Biotreatment of azo dye containing textile industry effluent by a developed bacterial consortium immobilised on brick pieces in an indigenously designed packed bed biofilm reactor

Microbial Bioremediation of Azo Dyes in Textile Industry Effluent: A Review on Bioreactor‐Based Studies

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