Search results for "Single chamber"
showing 5 items of 5 documents
BIO-ELECTROCHEMICAL SYSTEMS FOR ENERGY GATHERING FROM WASTEWATER
2017
It has been calculated that annually 1.5 × 108 MWh are wasted as municipal, industrial, and animal wastewater. The recovery of at least part of this energy it is of primary importance in order to approach circular economy. As AD, MFC is a biotechnology that uses microorganism into an anaerobic environment for energy conversion and recovery. Differently from AD, MFC belongs to the sub-division of Bio-Electrochemical Systems (BESs), having the advantage to achieve a direct electrical output. Exoelectrogens bacteria are employed, capable to close their respiratory electron chain on the surface of an electrode. Up to know, BESs were used to extract energy from a multitude of wastes, such as dis…
nEDM experiment at PSI : data-taking strategy and sensitivity of the dataset
2018
We report on the strategy used to optimize the sensitivity of our search for a neutron electric dipole moment at the Paul Scherrer Institute. Measurements were made upon ultracold neutrons stored within a single chamber at the heart of our apparatus. A mercury cohabiting magnetometer together with an array of cesium magnetometers were used to monitor the magnetic field, which was controlled and shaped by a series of precision field coils. In addition to details of the setup itself, we describe the chosen path to realize an appropriate balance between achieving the highest statistical sensitivity alongside the necessary control on systematic effects. The resulting irreducible sensitivity is …
Development of anode supported Single Chamber Solid Oxide Fuel Cells running in air/methane mixture
2013
International audience; Single Chamber Solid Oxide Fuel Cells (SCFC) show a growing interest and are the concern of more and more papers. In such device, anode and cathode are ex-posed to a gas mixture of fuel (hydrocarbon) and oxidant (air) so that no more sealing with electrolyte is necessary. Their operating principle is based on the different catalytic activities of anode and cathode: Ideally, the anode has to be active for the oxidation of fuel while the cathode should present only a strong electro-activity for oxygen reduction. In this paper, we present the development of an anode supported SCFC device running in air/methane mixture characterized by their volume ratio, Rmix = CH4/O2.
USE OF Ni-Co ALLOY AS CATHODE CATALYST IN SINGLE CHAMBER MICROBIAL FUEL CELL
2017
Technology of microbial fuel cells allowing for the direct production of electricity from biodegradable materials can provide only energy production, but also wastewater treatment. This technology is seen as supporting of the traditional wastewater treatment. One of the problems with microbial fuel cells is a low current density of those energy sources. Nonetheless, it is possible to increase the current density by using the catalyst for electrodes (anode and cathode). The possibility of wastewater treatment using the Ni-Co alloy as catalyst for single chamber microbial fuel cells is presented in this paper. The studies have included measurements of H2O2 reduction on Ni-Co catalyst, power o…
Single chamber microbial fuel cell with Ni-Co cathode
2017
The possibility of wastewater treatment and the parallel energy production using the Ni-Co alloy as cathode catalyst for single chamber microbial fuel cells is presented in this research. The research included a preparation of catalyst and comparison of COD, NH4 + and NO3 - reduction in the reactor without aeration, with aeration and with using a single chamber microbial fuel cell with Ni-Co cathode. The reduction time for COD with the use of microbial fuel cell with the Ni-Co catalyst is similar to the reduction time with aeration. The current density (2.4 A·m-2 ) and amount of energy (0.48 Wh) obtained in MFC is low, but the obtained amount of energy allows elimination of the energy neede…