Blar i NTNU Open på forfatter "Azrague, Kamal"
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Effects of reduced organic matter loading through membrane filtration on the microbial community dynamics in recirculating aquaculture systems (RAS) with Atlantic salmon parr (Salmo salar)
Fossmark, Ragnhild Olsen; Vadstein, Olav; Rosten, Trond Waldemar; Bakke, Ingrid; Koseto, Deni; Bugten, Anette Voll; Helberg, Gaute Alexander Nedberg; Nesje, Jenny; Jørgensen, Niels O.G.; Raspati, Gema Sakti; Azrague, Kamal; Østerhus, Stein Wold; Attramadal, Kari (Peer reviewed; Journal article, 2020)A key challenge in recirculating aquaculture systems (RAS) is the accumulation of particulate organic matter, especially the fine and colloidal fraction due to low removal efficiency of today's technology. The supply of ... -
Electrification of Excavators: Electrical configurations, carbon footprint, and cost assessment of retrofit solutions
Wiik, Marianne Rose Kjendseth; Fjellheim, Kristin; Suul, Jon Are Wold; Azrague, Kamal (Peer reviewed; Journal article, 2023)Technology for the electrification of transport is currently undergoing rapid development that is necessary for reducing greenhouse gas (GHG) emissions. On a global level, the transport sector is responsible for around 12% ... -
Experimental investigation of simultaneous nitrification-denitrification and phosphorus removal in pilot-scale sequencing batch moving bed biofilm reactors (SB-MBBRs)
Fanta, Abaynesh Belay; Sægrov, Sveinung; Azrague, Kamal; Østerhus, Stein Wold (Journal article; Peer reviewed, 2024)Sequencing batch moving bed biofilm reactors have been widely used in commercial wastewater treatment facilities for organic carbon and nitrogen removal. However, these reactors can remove low phosphorus (P) levels. ... -
Framework for the documentation of nature-based solutions for stormwater management
Raspati, Gema Sakti; Bruaset, Stian; Azrague, Kamal; Ugarelli, Rita Maria; Muthanna, Tone Merete; Time, Berit; Sivertsen, Edvard (Peer reviewed; Journal article, 2023)Nature-based solutions (NBSs) are widely implemented for stormwater management; as such they have become important assets that require proper asset management at different stages of their service life. Hence, there is a ... -
Hydraulic Performance of Advanced Treatment Media to Improve Quality of Stormwater from Airports Exposed to De-icing Chemicals
Andersen, Julie Elisabeth Hilland (Master thesis, 2016)Winter-runoff from airports contains a high fraction of contaminated stormwater. Contaminants such as de-icing chemicals propylene glycol and potassium formate, heavy metals and PAHs are often present in stormwater runoff ... -
Hydraulic Performance of Advanced Treatment Media to Improve Quality of Stormwater from Airports Exposed to De-icing Chemicals
Andersen, Julie Elisabeth Hilland (Master thesis, 2016)Winter-runoff from airports contains a high fraction of contaminated stormwater. Contaminants such as de-icing chemicals propylene glycol and potassium formate, heavy metals and PAHs are often present in stormwater runoff ... -
Investigation of the adsorption and biodegradation capacity of filter media towards airport de-icing chemicals
Lindseth, Hanna Kristine (Master thesis, 2016)At airports in Norway, propylene glycol (PG) and potassium formate (PF) are used as de-icing chemicals to provide safe air traffic. Expected climate changes will lead to temperatures more frequently around zero degrees, ... -
Investigation of the adsorption and biodegradation capacity of filter media towards airport de-icing chemicals
Lindseth, Hanna Kristine (Master thesis, 2016)At airports in Norway, propylene glycol (PG) and potassium formate (PF) are used as de-icing chemicals to provide safe air traffic. Expected climate changes will lead to temperatures more frequently around zero degrees, ... -
Navigating quality, health and environmental risk: A novel framework for wastewater resource recovery products
Ardiyanti, Rizza; Azrague, Kamal; Medema, Gertjan; Hallé, Cynthia (Peer reviewed; Journal article, 2024) -
Potential of Biofilters for Treatment of De-Icing Chemicals
Raspati, Gema Sakti; Lindseth, Hanna Kristine; Muthanna, Tone Merete; Azrague, Kamal (Journal article; Peer reviewed, 2018)Organic de-icing chemicals, such as propylene glycol and potassium formate, cause environmental degradation in receiving water if left untreated, due to the high organic load resulting in oxygen depletion. Biofilters are ... -
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality
Shaddel, Sina; Grini, Tonje; Ucar, Seniz; Azrague, Kamal; Andreassen, Jens-Petter; Østerhus, Stein Wold (Peer reviewed; Journal article, 2020)Seawater, as an alternative magnesium source, has the potential to improve the overall economics and environmental footprint of struvite production compared to the use of pure magnesium salts. However, the dilution effect ...