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Coupling of aerobic/anoxic and bioelectrogenic processes for treatment of pharmaceutical wastewater associated with bioelectricity generation

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  • Yeruva, Dileep Kumar
  • Velvizhi, G.
  • Mohan, S. Venkata

Abstract

A sequential treatment strategy designed by integrating sequencing batch (anoxic/aerobic operation) reactor (SBR) with bio-electrochemical treatment (BET) was studied to enhance the remediation of real-field pharmaceutical wastewater (PW). Study was carried out by feeding PW to two SBR systems operated under aerobic (SBRAe) and anoxic (SBRAx) microenvironments. Comparatively higher substrate degradation (SD) and multi-pollutant removal was observed with SBRAx (68.69%) in comparison to SBRAe (60.27%), due to the switching of bacterial metabolism that facilitates redox reactions. In order to further enhance the treatment efficiency, the effluents resulting from SBRAx were fed to BET1 and SBRAe to BET2. Relatively higher bioelectrogenic activity and SD were exhibited by BET1 (Voltage: 536 mV; current: 1.21 mA; SD: 75%) than BET2 (Voltage: 323 mV; current: 2.67 mA; SD: 73%). Self-induced bio-potential developed in BET system due to electrode assembly enabled higher organic and inorganic compounds removal than SBR. Study illustrated the advantage of integration strategy in enhancing the treatment of PW with simultaneous bioelectricity generation.

Suggested Citation

  • Yeruva, Dileep Kumar & Velvizhi, G. & Mohan, S. Venkata, 2016. "Coupling of aerobic/anoxic and bioelectrogenic processes for treatment of pharmaceutical wastewater associated with bioelectricity generation," Renewable Energy, Elsevier, vol. 98(C), pages 171-177.
    • Handle: RePEc:eee:renene:v:98:y:2016:i:c:p:171-177
    DOI: 10.1016/j.renene.2016.04.006
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    References listed on IDEAS

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    1. Nagendranatha Reddy, C. & Venkata Mohan, S., 2016. "Integrated bio-electrogenic process for bioelectricity production and cathodic nutrient recovery from azo dye wastewater," Renewable Energy, Elsevier, vol. 98(C), pages 188-196.
    2. Nikhil, G.N. & Venkata Subhash, G. & Yeruva, Dileep Kumar & Venkata Mohan, S., 2015. "Synergistic yield of dual energy forms through biocatalyzed electrofermentation of waste: Stoichiometric analysis of electron and carbon distribution," Energy, Elsevier, vol. 88(C), pages 281-291.
    3. Guo, Xuan & Zhan, Yali & Chen, Chunmao & Cai, Bin & Wang, Yu & Guo, Shaohui, 2016. "Influence of packing material characteristics on the performance of microbial fuel cells using petroleum refinery wastewater as fuel," Renewable Energy, Elsevier, vol. 87(P1), pages 437-444.
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    Cited by:

    1. Ismail, Zainab Z. & Habeeb, Ali A., 2017. "Experimental and modeling study of simultaneous power generation and pharmaceutical wastewater treatment in microbial fuel cell based on mobilized biofilm bearers," Renewable Energy, Elsevier, vol. 101(C), pages 1256-1265.
    2. Hu, Jianjun & Zhang, Quanguo & Lee, Duu-Jong & Ngo, Huu Hao, 2018. "Feasible use of microbial fuel cells for pollution treatment," Renewable Energy, Elsevier, vol. 129(PB), pages 824-829.

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