MESSAI.iO

AI summary

82% confidence

This study demonstrates the treatment of mineral oil refinery wastewater in single-chamber air-cathode microbial fuel cells (MFCs) using polymer inclusion membranes (PILIMs) based on the ionic liquid methyltrioctylammonium chloride [MTOA+][Cl−] at 70% w/w concentration. The MFC achieved 81% COD removal (1760 to 334 mg/L) over 217 hours at 25°C with natural microbial consortia, producing 45 mW/m³ power density. Significant reductions in Kjeldahl nitrogen (50%) and sulphate (51.23%) were also observed. The ionic liquid-based separator proved stable and cost-effective compared to commercial alternatives like Nafion.

Generated by MESSAI extraction pipeline · review against source PDF

Generic MFCRepresentative model
Click to animate flow
loading 3D model…

Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

Extraction

Reported parameters

7 extracted values

View extracted values

Open in lab for full controls, parameter editing, and template overlays.

Open in lab →

What they did

System
MFC
Inoculum
mixed culture from wastewater

What worked

No outcome metrics extracted yet.

Abstract

Microbial fuel cells (MFCs) are an environmentally friendly technology that can recover electricity directly from several wastes at ambient temperatures. This work explores the use of mineral oil refinery wastewater as feedstock in single-chamber air-cathode MFC devices. A polymer inclusion membrane based on the ionic liquid methyltrioctylammonium chloride, [MTOA+][Cl−], at a concentration of 70% w/w, was used as separator, showing a good efficiency in power production and chemical oxygen demand (COD) removal. The power and the chemical oxygen demand removal reached values of 45 mW/m³ and over 80%, respectively. The evolution of other parameters of the wastewater including nitrites, phosphates and sulphates were also studied. Kjeldahl nitrogen and sulphates were significantly reduced during MFC operation. The results show that mineral oil refinery wastewater can be used as feedstock in air breathing cathode-microbial fuel cells based on polymer ionic liquid inclusion membranes. This configuration could represent a good alternative for wastewater depuration while producing energy during the process.

Keywords

Microbial fuel cellWastewaterChemical oxygen demandMineral oilWaste managementSeparator (oil production)

Identifiers

DOI
10.3390/app8030438
Journal
Applied Sciences
Year
2018