This work has been done with Ramboll Water, in cooperation with Eskilstuna Energi & Miljö (EEM), where the activated sludge process at Ekeby wastewater treatment plant (WWTP) has been themodeling object. The simulation study, using Sumo, shows that the nitrogen reduction using a separate digester supernatant treatment can be at most 3,7 mg/l, or 17 %, over a year when the maximum degree of treatment is assumed to be 90 %. With respect to the new emission requirements for Ekeby WWTP that starts in 2022, a 60 % degree of removal of the nitrogen in the supernatant is enough with unchanged population. With the 90 % nitrogen removal some room for a higher influent load might be possible. Business integration is elaborated applying quantitative and qualitative growth, learning and exploitation paired with model and model tool capability and a matrix combining assignment types and model tool functionality.Further studies in form of process capability and dynamic simulation is proposed.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-409989 |
| Date | January 2020 |
| Creators | Falk, Wilma |
| Publisher | Uppsala universitet, Avdelningen för systemteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | UPTEC ES, 1650-8300 ; ES20005 |
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