Wastewater treatment in microbial fuel cells – an overview

A comprehensive review on microbial fuel cell technologies: Processes, utilization, and advanced developments in electrodes and membranes

The past and future of sustainable concrete: A critical review and new strategies on cement-based materials

High demand of natural resources due to rapid urbanization and the disposal problem of agricultural wastes in developed countries have created opportunities for use of agro-waste in the construction industry. Many agricultural waste materials are already used in concrete as replacement alternatives for cement, fine aggregate, coarse aggregate and reinforcing materials. This paper reviews some of the agro-waste materials, which are used as a partial replacement of fine aggregate in concrete. Different properties of fresh and hardened concrete, their durability and thermal conductivity when admixed with agro-wastes are reviewed. Agro-waste used in self-compacting concrete and mortar are also reviewed and their properties are compared. It has been seen that the agro-waste concrete containing groundnut shell, oyster shell, cork, rice husk ash and tobacco waste showed better workability than their counterparts did. Agro-waste concrete containing bagasse ash, sawdust ash and oyster shell achieved their required strength by 20% of replacement as fine aggregate, which were maximum among all agro-waste type concrete. Close relations were predicted among compressive strength, flexural strength, tensile strength, ultrasonic pulse velocity and elastic modulus of agro-waste concrete. Addition of bagasse ash as fine aggregate in mortar increased the resistance of chloride penetration whereas inclusion of cork in mortar showed better thermal resistance and improved cyclic performance. After the review, it is of considerable finding that more research is deserved on all fine aggregates replacing agro-waste materials, which can give more certainty on their utilization in concrete.

https://cyberleninka.org/article/n/653822.pdf

Concrete using agro-waste as fine aggregate for sustainable built environment – A review

Multi-walled carbon nanotube/SnO2 nanocomposite: a novel anode material for microbial fuel cells

Microbial fuel cells (MFCs) have the potential to simultaneously treat wastewater for reuse and to generate electricity. This study mainly considers the performance of an upflow dual-chambered MFC continuously fueled with actual domestic wastewater and alternatively biocatalyzed with aerobic activated sludge and strain of Bacillus Subtilis. The behavior of MFCs during initial biofilm growth and characterization of anodic biofilm were studied. After 45 days of continuous operation, the biofilms on the anodic electrode were well developed. The performance of MFCs was mainly evaluated in terms of COD reductions and electrical power output. Results revealed that the COD removal efficiency was 84% and 90% and the stabilized power outputs were clearly observed achieving a maximum value of 120 and 270 mW/m2 obtained for MFCs inoculated with mixed cultures and Bacillus Subtilis strain, respectively.

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Sustainable power generation in continuous flow microbial fuel cell treating actual wastewater: influence of biocatalyst type on electricity production.

A novel use of undesirable wild giant reed biomass to replace aggregate in concrete.

Prediction of sustainable electricity generation in microbial fuel cell by neural network: Effect of anode angle with respect to flow direction

BOD and COD reduction using porous concrete pavements

The ability of electrochemically active bacteria to degrade natural cellulosic bio-materials suggests a promising technology for converting biodegradable cellulosic wastes into electricity in speci...

Ali J. Jaeel

Papers

Sustainable power generation in continuous flow microbial fuel cell treating actual wastewater: influence of biocatalyst type on electricity production.

A novel use of undesirable wild giant reed biomass to replace aggregate in concrete.

Prediction of sustainable electricity generation in microbial fuel cell by neural network: Effect of anode angle with respect to flow direction

BOD and COD reduction using porous concrete pavements

Recourse recovery of bioenergy from cellulosic material in a microbial fuel cell fed with giant reed-loaded wastewater