Enhancing bio-gas production from kitchen waste using BSA-iron oxide nanoparticles in miniature level bio-reactor

Author(s):  
R.S.S. Prabhahar ◽  
N. Vignesh

Purpose: This study focuses on increasing production of biogas as an alternative energyfrom biodegradable wastes (BWs) using BSA coated iron oxides nanoparticles, in view ofsolving waste management at household level. Many attempts have been performed in orderto increase biogas production, including thermal pre-treatment of organic waste, but all ofthem present limited industrial applications. Iron has been shown to enhance anaerobicdigestion, but there are severe drawbacks for introducing the metal ion in an anaerobicclosed reactor.Design/methodology/approach: Process for the production of biogas from biodegradablematerial which comprises the steps of: (a) adding the biodegradable material to the Bioreactor,(b) inoculating the microorganisms in the digester,(c) synthesis iron oxides and BSApowder coated on the particles (d) adding a colloidal solution of surface-modified BSA-ironoxide nanoparticles to the reactor; (e) providing anaerobic conditions; (f) carrying out theanaerobic digestion; and (g) collecting the biogas, wherein the steps (a), (b) and (c) can becarried out in any order. It also comprises the use of BSA-iron oxide nanoparticles capableof supplying Fe ions to the media for biogas production in anaerobic conditions and in thepresence of Fe ions in the media.

Small ◽  
2014 ◽  
Vol 10 (14) ◽  
pp. 2801-2808 ◽  
Author(s):  
Eudald Casals ◽  
Raquel Barrena ◽  
Ana García ◽  
Edgar González ◽  
Lucía Delgado ◽  
...  

Nanoscale ◽  
2021 ◽  
Author(s):  
Lei Hu ◽  
Qiushi Wang ◽  
Xiandong Zhu ◽  
Tao Meng ◽  
Binbin Huang ◽  
...  

Iron oxide nanoparticles embedded in S,N dual-doped carbon through pyrolysis of novel Fe4-based metal–organic clusters are fabricated and utilized as potential anode materials for lithium ion batteries in both half- and full-cells.


2015 ◽  
Vol 6 (1) ◽  
pp. 225-236 ◽  
Author(s):  
Eszter Boros ◽  
Alice M. Bowen ◽  
Lee Josephson ◽  
Neil Vasdev ◽  
Jason P. Holland

Holland and co-workers report details of a novel chelate-free reaction for radiolabeling of pre-fabricated nanoparticles using different radionuclides.


MRS Advances ◽  
2018 ◽  
Vol 3 (36) ◽  
pp. 2119-2127 ◽  
Author(s):  
NOMCEBO H. MTHOMBENI ◽  
SANDRINE MBAKOP ◽  
AOYI OCHIENG ◽  
MAURICE S. ONYANGO

AbstractClinoptilolite modified with polypyrrole and iron oxide nanoparticles (Cln-PPy-Fe3O4) nanocomposite as a potential adsorbent for V (V) ions was prepared via polymerization of pyrrole monomer using FeCl3 oxidant in aqueous medium in which clinoptilolite-Fe3O4 nanoparticles were suspended. The structure and morphology of the prepared adsorbent was analysed with the Fourier transform infrared (FTIR) spectrometer, field-emission scanning electron microscope (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and high-resolution transmission electron microscope (HR-TEM). Column fixed bed studies were performed to test the ability of the adsorbent to remove V (V) ions from aqueous solution. Low values of adsorbent exhaustion rate (AER) and large bed volumes were observed at lower metal ion concentration, higher bed mass and lower flow rate for V(V) removal indicating good performance. The volume of treated water processed at breakthrough point were found to be 0.09; 0.63 and 1.26 L for bed mass of 1, 2.5; and 5 g, respectively. The Yoon–Nelson and Thomas models appropriately described the breakthrough curves.


2018 ◽  
Vol 185 ◽  
pp. 10004 ◽  
Author(s):  
Elena V. Simonova ◽  
Tatyana P. Denisova ◽  
Roman T. Khandukhanov ◽  
Grigory Yu. Melnikov ◽  
Anatoly I. Medvedev ◽  
...  

Biological activity of iron introduced into nutrient medium as a suspension of iron oxide nanoparticles (MNPs) synthesized by the laser target evaporation was investigated. Exophiala nigrum (E. nigrum) eukaryotes were grown either in the presence or in absence of MNPs. De-aggregated suspensions of Fe2.75O4 MNPs were added in concentrations of 1 to 104 maximum permissive dose (MPD, being 0.3 mg/L of Fe ions in water). Cells were exposed for 24 to 96 hours periods and then plated onto a solid medium. The effect of MNPs was evaluated by the change in the number of cells during exposure and the number and morphology of the colonies. For 1-10 MPD yeast showed unaltered characteristics. For 100 or 1000 MPD for 72 hours of exposure and above the number of cells increases up to 30 times in comparison with the control. A pronounced stimulating effect was revealed at 104 MPD of iron. A significant excess of the number of cells was observed for the first day. At exposures of 72 and 96 hours the differences in the number of cells in comparison with the control were 11 and 30 times, respectively. A change in the colonies morphology was observed at 100 MPD concentration.


CrystEngComm ◽  
2014 ◽  
Vol 16 (25) ◽  
pp. 5566-5572 ◽  
Author(s):  
Wei Wu ◽  
Shuanglei Yang ◽  
Jun Pan ◽  
Lingling Sun ◽  
Juan Zhou ◽  
...  

Some useful insights into the synthesis and shape-dependent magnetic properties of iron oxide nanoparticles with different morphologies are presented.


2021 ◽  
Author(s):  
David González-Alonso ◽  
Jose I. Espeso ◽  
Helena Gavilán ◽  
Lunjie Zeng ◽  
Maria Teresa Fernandez-Diaz ◽  
...  

Scientific interest in iron–oxides and in particular magnetite has been renewed due to the broad scope of its fascinating properties, which are finding applications in electronics and biomedicine. Specifically, iron...


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