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Treatment of Common Effluent Treatment Plant Wastewater in a Sequential Anoxic–Oxic Batch Reactor by Developed Bacterial Consortium VN11

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Title Treatment of Common Effluent Treatment Plant
Wastewater in a Sequential Anoxic–Oxic Batch Reactor
by Developed Bacterial Consortium VN11
 
Creator Chattaraj, Sananda
Purohit, H J
Sharma, Abhinav
Jadeja, Niti B
Madamwar, Datta
 
Subject Industrial Wastewater Treatment & Disposal
Environmental Biotechnology
 
Description A laboratory-scale anoxic–oxic sequential reactor system was seeded with acclimatized
mixed microbial consortium for the treatment of common effluent treatment plant
(CETP) wastewater having 7000–7400 mg L−1 of COD and 3000–3400 mg L−1 of BOD.
Initially, CETP wastewater was treated under anoxic reactor at 5000 mg L−1 of MLSS
concentrations, 5.26 ± 0.27 kg COD m−3 day−1 of organic loading rate (OLR) and 36 h of
hydraulic retention time (HRT). Further, the effluent of anoxic reactor was treated in oxic
reactor with an OLR of 6.6 ± 0.31 kg COD m−3 day−1 and 18 h HRT. Maximum color and
COD removal were found to be 72 and 85 % at total HRT of 2.25 days under anoxic–oxic
sequential reactor at 37 °C and pH 7.0. The UV–VIS, FTIR, NMR and GCMS studies showed
that majority of peaks observed in untreated wastewater were either shifted or disappeared
after sequential treatment. Phytotoxicity study with the seeds of Vigna radiata and Triticum
aestivum showed more sensitivity toward the CETP wastewater, while the products obtained
after sequential treatment does not have any inhibitory effects. The results demonstrated that
the anoxic–oxic reactor fed with bacterial consortium VN11 could bring about efficient
bioremediation of industrial wastewaters.
 
Publisher Springer
 
Date 2016
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/811/1/Chattaraj_NN.pdf
Chattaraj, Sananda and Purohit, H J and Sharma, Abhinav and Jadeja, Niti B and Madamwar, Datta (2016) Treatment of Common Effluent Treatment Plant Wastewater in a Sequential Anoxic–Oxic Batch Reactor by Developed Bacterial Consortium VN11. Applied Biochemistry and Biotechnology, 179. pp. 514-529. ISSN 0273-2289, ESSN: 1559-0291
 
Relation https://link.springer.com/journal/12010
http://neeri.csircentral.net/811/