Co-treatment of septage and municipal wastewater in a quadripartite microbial desalination cell

Ebrahimi, Atieh; Kebria, Daryoush Yousefi; Najafpour, Ghasem

doi:10.1016/j.cej.2018.08.107

Cited by 29 publications

(8 citation statements)

References 31 publications

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“…It happened mainly because of ohmic resistance and subsequently, power generation was substantially affected by ionic characteristics of solutions. The ohmic resistance has been considered as one of the key factors to achieve the maximum power density in fuel cells 28 . Thus, increasing the conductivity of the electrolyte solution decreased the ohmic resistance of MEKC 6.…”

Section: Resultsmentioning

confidence: 99%

“…Solar energy, as well as microbial fuel cells (MFCs), have been considered as effective methods to be combined with EKR 22,24‐27 . Among these approaches, MFC as a nascent applied science in wastewater treatment, clean water production, 28‐30 and green energy generation, 30,31 have been proposed in recent years. The previous studies findings have shown the high potential of MFC in producing renewable and low‐cost energy sources 32‐34 .…”

Section: Introductionmentioning

confidence: 99%

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Microbial fuel cell‐enhanced electrokinetic process for remediation of chromium from marine sediments

Razavi

Kebria

Ebrahimi

2020

Env Prog and Sustain Energy

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The combination of microbial fuel cell with electrokinetic processes, known as Microbial Electrokinetic Cell (MEKC), is an innovative and sustainable process for simultaneous sediment remediation and renewable energy production. This study made a major contribution to research on MEKC by demonstrating the maximum energy extraction and chromium removal using three types of the anode electrode, comprising plate graphite (PG), scratched plate graphite (SPG), and the combination of SPG with granular activated carbon (SPG‐GAC) used as bioanode. The results indicated that power generation changed noticeably based on the anolyte type and electrode configuration. The application of the SPG‐GAC electrode resulted in the maximum power densities of 10 ± 0.02 and 5.12 ± 0.04 W/m3 in MEKCs fed by actual and synthetic wastewater, respectively. However, feeding MEKC with synthetic wastewater instead of the actual one caused a slight reduction in chromium removal from 72.64 to 69.50% in anode and from 53.70 to 49.44% in cathode chamber. According to the obtained results, the SPG‐GAC can be suggested to improve MEKC power generation by increasing bacterial adhesion and enhancing the extracellular electron transfer using the granular activated carbon. Furthermore, the results provided a proof‐of‐concept that MEKC has a high potential to be used for efficient sediment remediation and to promote environmental health.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbial fuel cell‐enhanced electrokinetic process for remediation of chromium from marine sediments

Razavi

Kebria

Ebrahimi

2020

Env Prog and Sustain Energy

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“…Open circuit voltage (OCV), current and voltage were measured according to the methodology described elsewhere 68 , 69 . Derived electrochemical parameters such as current density, power density, and volumetric power density were calculated based on the cathode surface area.…”

Section: Methodsmentioning

confidence: 99%

Enhanced bioelectrochemical treatment of petroleum refinery wastewater with Labaneh whey as co-substrate

Mohanakrishna

Abu-Reesh

Pant

2020

Sci Rep

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Petroleum refinery wastewater (PRW) that contains recalcitrant components as the major portion of constituents is difficult to treat by conventional biological processes. Microbial fuel cells (MFCs) which also produce renewable energy were found to be promising for the treatment of PRW. However, due to the high total dissolved solids and low organic matter content, the efficiency of the process is limited. Labaneh whey (LW) wastewater, having higher biodegradability and high organic matter was evaluated as co-substrate along with PRW in standard dual chambered MFC to achieve improved power generation and treatment efficiency. Among several concentrations of LW as co-substrate in the range of 5–30% (v/v) with PRW, 85:15 (PRW:LW) showed to have the highest power generation (power density (PD), 832 mW/m2), which is two times higher than the control with PRW as sole substrate (PD, 420 mW/m2). On the contrary, a maximum substrate degradation rate of 0.420 kg COD/m3-day (ξCOD, 63.10%), was registered with 80:20 feed. Higher LW ratios in PRW lead to the production of VFA which in turn gradually decreased the anolyte pH to below 4.5 (70:30 feed). This resulted in a drop in the performance of MFC with respect to power generation (274 mW/m2, 70:30 feed) and substrate degradation (ξCOD, 17.84%).

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“…A few creators consider the volume of regarded water as a variable when measuring proficiency for water organizations that give drinking water also wastewater treatment administrations. This estimate is not valuable as an estimation of specialized and monetary working proficiency of WWTPs since it doesn't represent toxin disposal yields or cost elements particular to the wastewater treatment handle [25]. An alternate approach, particularly for specialized and financial efficiencies of WWTPs, has been utilized by Hernández-Sancho and Sala-Garrido [12].…”

Section: Energy Efficiency Of Wastewater Treatmentmentioning

confidence: 99%

Energy Productivity Analysis of Industrial Wastewater Treatment Plants: A Data Envelopment Analysis Approach

Saghafi

Mehrdadi

Bidhendi

2018

IJEE

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Currently, the efficiency improvement of industrial wastewater treatment plant (IWWTP) has turned into a noticeable challenge for plants operator. In addition, decreasing in the cost and energy consumption of wastewater treatment plants has attracted great interest by water agencies and IWWTP management. Since IWWTPs are energy-intensive facilities, the need for cost-efficient and reliable treatment processes has significantly increased so as to meet the standards of environmental regulations and national goals. Determination of energy efficiency of IWWTPs is a starting point for any energy-saving initiative. In this paper, a case study was carried out in 79 WWTPs in Iran's industrial zones to identify electrical energy efficiency indices (EEI). In order to achieve a reliable result, Data Envelopment Analysis (DEA) was applied by Lingo11 software. The electrical energy efficiency index was estimated by regression equations for plants with different level of treatment (ready to discharge to the river, irrigation of green spaces, and agriculture) using Minitab17 software. The obtained results showed that only 1% of the treatment plants have high energy efficiency index (0.8

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Co-treatment of septage and municipal wastewater in a quadripartite microbial desalination cell

Cited by 29 publications

References 31 publications

Microbial fuel cell‐enhanced electrokinetic process for remediation of chromium from marine sediments

Microbial fuel cell‐enhanced electrokinetic process for remediation of chromium from marine sediments

Enhanced bioelectrochemical treatment of petroleum refinery wastewater with Labaneh whey as co-substrate

Energy Productivity Analysis of Industrial Wastewater Treatment Plants: A Data Envelopment Analysis Approach

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