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Our research aimed to explore the bioremediation of acetaminophen (APAP) and 4-aminophenol (PAP), as well as energy production in a dual-chamber fungal microbial fuel cell (FMFC) device. The pure culture of fungus Trichoderma harzianum and mixed culture of bacteria and fungi (Trichoderma harzianum and Pseudomonas fluorescens) were used as bioanodes. The microorganisms were compared for the first time to examine the removal efficiency of the APAP and its main by-product (PAP). The authors have applied an electrochemical approach to follow the APAP and PAP behavior in the systems. It is interesting to mention that the mixed biofilm culture was able to completely remove the APAP and PAP at around 7 h. These experiments revealed that the biodeg
This research aimed to evaluate a microbial fuel cell (MFC) device equipped with a novel composite polymer-electrolyte membrane consisting of the metal-organic framework and sulfonated polysulfone (SPSU/MIL-100(Fe)) for simultaneous treatment of meat poultry wastewater and power generation. The composite SPSU/MIL-100(Fe) membranes were fabricated by solution casting of polymer and characterized to determine the MFC performance. A 20wt% SPSU solution with 42.27%desulfonation degree exhibited an IEC 1.2 meq g-1, PC 0.90 mS cm-1, and low WU 7%. However, the minimum oxygen diffusion coefficient 1.23?10-5 cm2 s-1, oxygen mass transfer coefficient 6.49?10-4 cm s-1, maximum PC 2.55 mS cm-1, and WU 36.50% were achieved with SPSU composite membrane
Page 1. 1 Tailoring of nanostructured ZnO-Fe3O4/TiO2 composite derived from MIL 125(Ti) for 1 efficient photocatalytic removal of Reactive Blue 21 from aqueous solutions 2 3 Zahra Esania1, Habibollah Younesi1*, Mohsen Nowrouzi2* 4 5 1Department of Environmental Science, Faculty of Natural Resources, Tarbiat Modares 6 University, PO Box: 46414-356, Noor, Iran 7 2Department of Science and biotechnology, Faculty of Nano and BioScience and 8 Technology, Persian Gulf University, Bushehr 75169-13798, Iran 9 10 Abstract 11 A novel nanostructured ZnO-Fe3O4/TiO2 composite derived from MIL 125(Ti) was 12 synthesized using mixed solvo-hydrothermal and sol-gel methods for efficient removal of 13 Reactive Blue 21 (RB 21) from aqueous solutions under dif
The purpose of the current research is to investigate the adsorption process behavior of magnetic nitrogen doped graphene (MNG) prepared from the orange peel in the adsorption of sodium dodecylbenzene sulfonate (SDBS) from liquid solution in batch experiments. The characteristics results of VSM, FTIR, SEM, AFM, Raman, elemental analysis and BET surface area analysis revealed the successful synthesis nano adsorbent. The effective factors on adsorption performance were including adsorbent dosage, temperature, contact time, pH and initial concentration of SDBS. The Maximum adsorption capacity for SDBS is computed to be 556 mg/g at 45◦ C and pH of 3. The adsorption process of SDBS was found that tted well with the Langmuir isotherm model and
Recent technologies have been directed toward the use ofinexpensive carbon sources like agricultural wastes and wastewaters in order to produce polyhydroxyalkanoates (PHAs) in a large commercial and industrial scaleand to reducehazardous pollutants. This study aimed toproduce poly-3-hydroxybutyrate (PHB) from wastewater of the beer brewery industry using Cupriavidus necator. For this purpose, the experiments were performed at three steps to evaluate the effect ofC/N and C/Pratiosand industrial-grade maltose on biopolymer production. The batch system was chosen for the fermentation process and the alteration of bacterial growth and NH4+-N and PO43−-P consumption were monitored at24 h intervals.Maximum biopolymer productionof 1.98 g L
Waste tires can be a promising carbon precursor for the production of carbon nanospheres (CNSs) because of their high carbon content, low price, and abundance. CNSs were synthesized from waste tire powder through a chemical vapor deposition method over the ferrocene catalyst at 800-900 ?C. The scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET), and Raman spectroscopy analyses characterized the as-synthesized CNSs. The obtained products had a spherical shape with a mean size of 50 nm. The least BET surface area, the total pore volume, and relative intensities of D- and G-bands (ID/IG) of the CNSs were foun
The main objective of this work was to synthesis a novel magnetic nanoparticles functionalized with β-cyclodextrin and use it to refine transformer oil contaminated with high concentration of PCBs. Carboxymethyl-β-cyclodextrin modified Fe3O4@SiO2 magnetic nanoparticles (CMCD-Fe3O4@SiO2) were fabricated by grafting onto the core-shell silica magnetic nanoparticles surface using carbodiimide. The successful synthesis of nanocomposites was characterized by FTIR, XRD, VSM, SEM, TEM, VSM, TGA and EDX analysis. Hereinafter, the application of response surface methodology (RSM) based on the central composite design (CCD) was employed for optimization of the interactive effects of the three main variables on the removal efficiency of PCBs. A quad
The purpose of this study was to evaluate the efficiency of porous magnetic graphene (PMG) for removal of Erythromycin (ER) from aqueous solutions. PMG was prepared from banana peel residue, which was considered as a discarded material. As-synthesized nanocomposite was characterized by SEM, AFM, FTIR, RAMAN and BET analysis. The optimum conditions were obtained at pH of 3, contact time of 30 min, initial antibiotic concentration of 200 mg/L, and adsorbent dose of 0.35 g/L. In equilibrium, the Langmuir isotherm model was the best fit to the experimental data for the kinetics study, the adsorption process developed the pseudo-second-order model. According to the results, nanosheet had high adsorption capacity (286 mg/g) and can be considered
This paper proposes a critical review of the proton exchange membranes currently available or under development for use in batch-mode microbial fuel cell (MFC) systems in order to suggest a suitable cost-effective membrane in terms of energy recovery. To prepare the present review, the relevant papers were identified by searching the Scopus database and extracting papers from 2007 to 2020. There is a wide variety of different membranes, each with its advantages and disadvantages. Perfluorinated and non-fluorinated membranes were evaluated based on different properties, including proton conductivity, power density (PD), water uptake, and ion exchange capacity. Results reveal that non-fluorinated membranes such as sulfonated poly (ether ether
Mercury (Hg) is one of the water pollutants and its removal from the aqueous environment is important. The major goal of this study was to remove the Hg (II) from aqueous solution by synthesizing a modified nanochitosan with carbon disulfide functional groups. Nanochitosan was synthesized using citric acid as an environmentally friendly crosslinking agent, and then it was modified with a carbon disulfide functional group. The characteristics of synthesized nanocomposite were studied by using proton nuclear magnetic resonance (1HNMR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). Batch adsorption experiments of Hg (II) in metal ion solution were conducted under