Now showing items 1-10 of 11
Role and Important Properties of a Membrane with Its Recent Advancement in a Microbial Fuel Cell
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-09)
Microbial fuel cells (MFC) are an emerging technology for wastewater treatment that utilizes the metabolism of microorganisms to generate electricity from the organic matter present in water directly. The principle of MFC is the same as hydrogen fuel cell and has three main components (i.e., anode, cathode, and proton exchange membrane). The membrane separates the anode and cathode chambers and ...
The Volcanic Hazards of Jan Mayen Island (North-Atlantic)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-04)
Hazard assessment of remote volcanic islands provides many challenges compared to other volcanoes and volcanic fields. Here we present the first systematic volcanic hazard assessment of Jan Mayen Island, a remote island located in the North-Atlantic Ocean and home to the northernmost active subaerial volcano in the world (Beerenberg Volcano), and we discuss some of the challenges and characteristics ...
Pre-Holocene volcanic ash in sediments near Jan Mayen
(Conference object; Konferansebidrag, 2022-05)
Experimental Study of Power Generation and COD Removal Efficiency by Air Cathode Microbial Fuel Cell Using Shewanella baltica 20
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-05)
Microbial fuel cells (MFCs) are a kind of bioreactor for generating electricity, facilitated by exoelectrogens while treating wastewater. The present article focuses on the performance of an air cathode plexiglass MFC in terms of chemical oxygen demand (COD) removal efficiency and power output by performing two sets of experiments. The proton exchange membrane and electrode materials were Nafion ...
Review on material and design of anode for microbial fuel cell
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-21)
Microbial Fuel Cell (MFC) is a bio-electrochemical system that generates electricity by anaerobic oxidation of substrates. An anode is the most critical component because the primary conversion of wastewater into electrons and protons takes place on the surface of the anode, where a biofilm is formed. This paper describes the essential properties of the anode and classifies its types according ...
Comparison of “Zero Emission” Vehicles with Petrol and Hybrid Cars in Terms of Total CO2 Release—A Case Study for Romania, Poland, Norway and Germany
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-27)
The authors compare the energy consumption and CO<sub>2</sub> emissions from vehicles using internal combustion engines (ICE), battery electric vehicles (BEV), fuel cell electric vehicles (FCEV), and two types of hybrid vehicles, BEV‐ICE hybrid and BEV‐FCEV hybrid. This paper considers several scenarios for four countries’ electricity production from primary energy sources to estimate total ...
Preliminary Study on the Mechanical Activation and High‐Temperature Treatment of Saponite‐Containing Tailings Generated during Kimberlite Ore Dressing
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-13)
This study investigates transformations of a pre-mechanically activated saponite-containing material with subsequent high-temperature treatment. The thermogravimetric analysis confirmed that the mechanical activation of saponite leads to the destruction of its layered structure, accompanied by the release of silicon dioxide and magnesium oxide in free form. The values of surface activity for ...
Artificial Thawing of Frozen Ground: A Review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-27)
Understanding the freezing and thawing processes in porous media such as soils is important, especially in regions experiencing seasonal frost or permafrost. These processes have a wide range of implications as diverse as how to maintain the structural integrity of roads, railways, pipelines, and buildings, to when to plant seeds during the growth season. Thawing of frozen ground is the opposite ...
DEVELOPMENT OF METHOD AND CRITERIA FOR EVALUATION OF DRY-WASHING EFFICIENCY WITH RE-CON ZERO EVO
(Chapter; Bokkapittel, 2022)
Society recognises the need for the preservation of nature and the need for better resource utilisation. Integration of good practice in the building industry is mainly targeted at reducing or completely eliminating waste. One of the waste sources in the concrete industry is created in washing facilities and consists of returned concrete, washing water and cement slurry. Concrete trucks are washed ...
Evaluation of optimal replacement of natural aggregates by recycled concrete aggregates to achieve sufficient durability
(Preprint; Manuskript, 2022)
The use of recycled concrete aggregate (RCA) is one way to reduce the depletion of raw materials for the production of concrete. In this article RCA was tested and evaluated. Concrete with 25 to 80 % of RCA was examined in terms of its durability performance, particularly capillary absorption and shrinkage. Capillary absorption testing showed that RCA has better or identical results as the reference ...