Pollutant removal, electricity generation and microbial community in an electrochemical membrane bioreactor during co-treatment of sewage and landfill leachate

Pierangeli, Gabrielle Maria Fonseca; Ragio, Rodrigo Almeria; Benassi, Roseli Frederigi; Gregoracci, Gustavo Bueno; Subtil, Eduardo Lucas

doi:10.1016/j.jece.2021.106205

Cited by 30 publications

(4 citation statements)

References 93 publications

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“…Similarly, water samples were tested at 72, 96, and 120 hours, and BOD levels was reduced to 219 mg/L, 211 mg/L, and 201 mg/L, respectively resulting in day-byday BOD removal percentages of 29.80 %, 32.37 %, and 35.57 %, respectively. The organic and inorganic materials present in the wastewater as pollutant get consumed by the bacteria that colonise the EMBR's anode, hence causing reduction in BOD value (Pierangeli et al,2021). It was observed that the BOD removal efficacy of the current set-up was on lower side as compared to the other studies (Matsubara et al,2020;Ragio et al2021) that might be due to low concentration of refractory compounds in wastewater, that causing…”

Section: Effect On Bodmentioning

confidence: 84%

Reduction of Contaminants from Municipal Wastewater of Salori Sewage Treatment Plant Using Electrochemical Membrane Bioreactor and Bioelectricity Generation

Yadav¹,

Kamsonlian²,

Gola³

et al. 2023

Ecol. Eng. Environ. Technol.

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Membrane bioreactor (MBR) is stable and rising wastewater treatment reactor though membrane fouling and energy expenditure remain operational impediments and challenges for the wider deployment of the MBR technology. The majority of municipal wastewater contains low quantities of suspended, dissolved inorganic and organic particles. Proteins, carbohydrates, synthetic detergents, lignin, soaps, lipids and their decomposition products, along with many natural and synthetic organic chemicals from industrial processes, are also examples of impurities present in water. In addition, municipal wastewater contains a variety of inorganic chemicals, such as heavy metals, which might have phytotoxic and health consequences, limiting its usage in agriculture. In this study, an electrochemical membrane bioreactor (EMBR) has been developed to reduce several impurities from real municipal wastewater; moreover bioelectricity was also generated simultaneously. The maximum removal of biological oxygen demand (BOD), chemical oxygen demand (COD) and total dissolved solid (TDS) were 35.57%, 31.55%, and 32.84 %, respectively, after a 5-day experimental run.

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Section: Effect On Bodmentioning

confidence: 84%

Reduction of Contaminants from Municipal Wastewater of Salori Sewage Treatment Plant Using Electrochemical Membrane Bioreactor and Bioelectricity Generation

Yadav¹,

Kamsonlian²,

Gola³

et al. 2023

Ecol. Eng. Environ. Technol.

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“…The facultative denitrifiers Methylobacterium/Methylorubrum , Hyphomicrobium, Methyloversatilis , Hydrogenophaga , and Comamonadaceae are able to reduce both nitrate and oxygen as the final electron acceptor, and all have been previously detected in cathodic biofilms in liquid microbial fuel cells [ [77] , [78] , [79] , [80] , [81] , [82] , [83] , [84] , [85] ]. Electroactive species were also detected on the cathodes, such as Faecalibacterium and Geobacter , albeit to a lesser extent than on the anodes.…”

Section: Resultsmentioning

confidence: 99%

Influence of carbon-based cathodes on biofilm composition and electrochemical performance in soil microbial fuel cells

Nandy¹,

Farkas²,

Pepió-Tárrega³

et al. 2023

Environmental Science and Ecotechnology

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“…Many technologies have been developed to treat high-salinity organic wastewater, such as advanced oxidation processes [11], membrane separation [12], and osmosis technologies [13]. Among these technologies, advanced oxidation processes (AOPs) represent a promising method for the removal of emerging organic pollutants from water [14].…”

Section: Introductionmentioning

confidence: 99%

The Elimination of Levofloxacin from High-Salinity Wastewater via the Electrochlorination Process

Wei,

Li,

Jing

et al. 2024

Water

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The electrochlorination (E-Cl) process has attracted much attention as it is a highly efficient method for treating organic compounds in hypersaline wastewater. In this study, the E-Cl process was utilized for the removal of antibiotics. The optimal experimental conditions were determined to be a NaCl concentration of 100 mM, a current density of 1.5 mA/cm2, a pH of 7.0, and a plate spacing of 1 cm, with a levofloxacin (LEV) degradation efficiency reaching as high as 99% using this setup. The effects of the presence of other ions and humic acid on the E-Cl process were investigated, and it was found that the degradation of LEV was not significantly affected by the presence of coexisting substances. In addition, free chlorine was identified as the primary active species for the degradation of LEV by means of a quenching experiment. It was demonstrated by 3D EEM and TOC that LEV was not completely mineralized and that intermediate products may be present. In order to reveal the degradation pathways of LEV, its degradation products were also analyzed via LC-MS, and some possible pathways of LEV degradation in this system were proposed. The successful degradation of LEV demonstrated that the E-Cl process is an efficient and promising technique for the treatment of organic pollutants in high-salinity wastewater.

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Pollutant removal, electricity generation and microbial community in an electrochemical membrane bioreactor during co-treatment of sewage and landfill leachate

Cited by 30 publications

References 93 publications

Reduction of Contaminants from Municipal Wastewater of Salori Sewage Treatment Plant Using Electrochemical Membrane Bioreactor and Bioelectricity Generation

Reduction of Contaminants from Municipal Wastewater of Salori Sewage Treatment Plant Using Electrochemical Membrane Bioreactor and Bioelectricity Generation

Influence of carbon-based cathodes on biofilm composition and electrochemical performance in soil microbial fuel cells

The Elimination of Levofloxacin from High-Salinity Wastewater via the Electrochlorination Process

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