Blar i Publikasjoner fra CRIStin - SINTEF AS på forfatter "Raspati, Gema Sakti"

A Risk-Based Approach in Rehabilitation of Water Distribution Networks

Raspati, Gema Sakti; Bruaset, Stian; Bosco, Camillo; Mushom, Lars; Johannessen, Birgitte Gisvold; Ugarelli, Rita Maria (Peer reviewed; Journal article, 2022)

A risk-based approach to support water utilities in terms of defining pipe rehabilitation priorities is presented. In a risk analysis in the risk management process, the probability that a given event will happen and the ...

Concentration of Municipal MBBR Effluent by FO for Resource Recovery: Batch Experiments in Side-Stream Configuration

Thelin, Willy Røstum; Sivertsen, Edvard; Raspati, Gema Sakti; Azrague, Kamal; Helness, Herman (Peer reviewed; Journal article, 2021)

A novel approach for resource recovery includes forward osmosis (FO) as a concentration step in municipal wastewater treatment. The current study investigates different pre-treatment strategies including biological treatment ...

A Critical Review of Wastewater Resource Recovery Implementation in Indonesia

Marleni, N.N.N.; Raspati, Gema Sakti (Journal article, 2020)

Wastewater has been recognized as a resource due to its large quantities, and it contains many valuable resources that can be converted into valuable material. Reusing or recovering resources from wastewater can reduce the ...

Datastruktur for dokumentasjon av naturbaserte løsninger – et verktøy

Raspati, Gema Sakti; Bruaset, Stian; Sivertsen, Edvard; Møller-Pedersen, Per; Røstum, Jon (Klima 2050 Report;19, Research report, 2020)

Naturbaserte løsninger (NBL) for håndtering av overvann i urbane strøk finnes i mange former og variasjoner, noe som gjør at det er vanskelig å ha et felles rammeverk som kan integrere alle spesifikke aspekter ved disse ...

Detention-based green roofs for stormwater management under extreme precipitation due to climate change

Hamouz, Vladimir; Pons, Vincent; Sivertsen, Edvard; Raspati, Gema Sakti; Bertrand-Krajewski, Jean-Luc; Muthanna, Tone Merete (Peer reviewed; Journal article, 2020)

Rooftops cover a large percentage of land area in urban areas, which can potentially be used for stormwater purposes. Seeking adaptation strategies, there is an increasing interest in utilising green roofs for stormwater ...

Documentation tool of nature-based solutions – a guideline

Raspati, Gema Sakti; Bruaset, Stian; Sivertsen, Edvard; Møller-Pedersen, Per; Røstum, Jon (Klima 2050 Report;18, Research report, 2019)

Nature-based solutions (NBS) can be found in many forms and variations that make information of specific aspects connected to them are difficult to populate. As an asset, NBS should be managed properly right from the ...

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 ...

Forurenset overvann. En litteraturstudie

Sivertsen, Edvard; Raspati, Gema Sakti; Barrio, Maria; Bruaset, Stian; Azrague, Kamal (Klima 2050 Report;28, Research report, 2021)

I løpet av de siste fem-seks årene har det i Norge vært en økende interesse for håndtering av overvann. Fokuset har stort sett vært på håndtering av overvannsmengde, men også håndtering av forurensninger i overvannet har ...

High rate filtration for local treatment of combined sewer overflow

Helness, Herman; Sun, C; Damman, Sigrid; Ahmadi, Mehdi; Raspati, Gema Sakti; Bjerkelund, Viggo Andre; Moldestad, G; Hattori, K; Kato, T.; Ando, N. (Journal article; Peer reviewed, 2019)

Combined sewer overflows (CSOs) pollute receiving waters and have a negative impact on ecosystem services. In urban areas rehabilitation of the sewer system to avoid CSOs is associated with high investment costs. Furthermore, ...

Hydraulic reliability analysis of a real network with remotely realtime controlled pressure control valves

Laucelli, Daniele; Berardi, Luigi; Simone, Antonietta; Raspati, Gema Sakti; Ugarelli, Rita Maria; Giustolisi, Orazio (Chapter; Conference object, 2017)

The paper considers a real water distribution network, where current pressure control strategies exploit classical pressure control valves (PCVs). A previous study identified alternative pressure ...

Internasjonalt FoU-samarbeid med fokus på drikkevannsrensing med membraner

Thelin, Willy; Raspati, Gema Sakti; Sivertsen, Edvard (Journal article, 2016)

Mechanical reliability analysis of a real network to support the design of Isolation Valve System

Berardi, Luigi; Laucelli, Daniele; Simone, Antonietta; Raspati, Gema Sakti; Ugarelli, Rita Maria; Giustolisi, Orazio (Chapter; Conference object, 2017)

The Isolation Valve System (IVS) allows to detach some portions of water distribution networks (WDN) to perform planned (e.g. maintenance) or unplanned (e.g. failures) works. Isolating WDN segments ...

Overvannshåndtering med fordrøyende tak

Sivertsen, Edvard; Bruaset, Stian; Maurin, Noëlie; Abdalla, Elhadi Mohsen Hassan; Raspati, Gema Sakti (Klima 2050 Report;47, Research report, 2023)

Fordrøyende tak har vært et sentralt forskningstema i Klima 2050 der testfeltet Høvringen utenfor Trondheim har spilt en særlig viktig og samlende rolle. Hensikten med denne rapporten er å gi en kort oversikt over de ulike ...

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 ...

Protection of Water Distribution Networks against Cyber and Physical Threats: The STOP-IT Approach Demonstrated in a Case Study

Bosco, Camillo; Raspati, Gema Sakti; Tefera, Kebebe; Rishovd, Harald; Ugarelli, Rita Maria (Peer reviewed; Journal article, 2022)

Water critical infrastructures are undergoing a process of digital transformation that entails an increasing integration between the physical and cyber layers of the system. This integration brings efficiency and monitoring ...