Essays about: "avloppsvatten"

Showing result 31 - 35 of 148 essays containing the word avloppsvatten.

  1. 31. Using linear regression and neural network to forecast sewer flow from X-band radar data

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Fredrik Wigertz; [2021]
    Keywords : Neural network; Linear regression; Flow forecasting; Wastewater; Wastewater treatment plant; Rainfall-runoff modelling; X-band radar; Neurala nätverk; Linjär regression; Flödesprognosering; Avloppsvatten; Reningsverk; Avrinningsmodellering; X-bandradar;

    Abstract : The climate adaptation of our cities and the optimization of our technical systems with regards to weather sets high demands on the availability and the processing of weather data. The possibility to forecast disturbances of influent flow rate to wastewater treatment plants allow control systems counteract these disturbances before they have a harmful effect on the treatment processes. READ MORE

  3. 32. High Resolution Mapping and Spatial Analysis of Carbon Free Heat Sources for District Heating : A Case Study of Helsinki

    University essay from KTH/Energiteknik

    Author : Filip Norrman; Mattias Persson; [2021]
    Keywords : High-­Resolution Mapping; Carbon-­Free Heat Sources; 4th Generation District Heating; GIS; Hög­upplöst kartläggning; Koldoixidfria värmekällor; 4e generationen Fjärrvärme; GIS;

    Abstract : Heat production together with electricity production stands for 31% of the global CO2 emissions. The production is as of today still highly dependent on fossil fuels, with a global district energy mix share of fossil fuels of 90%. READ MORE

  4. 33. Identifying factors that correlate with Enhanced Biological Phosphorus Removal upsets at Lundåkraverket

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Rounak Niranjan; [2021]
    Keywords : Enhanced biological phosphorus removal; polyphosphate accumulating organisms; glycogen accumulating organisms; sludge content in aeration basin; nitrates in aeration basin; pH of incoming water; principal component analysis; pairwise correlations; inhibition factors;

    Abstract : The Enhanced Biological Phosphorus Removal (EBPR) process is characterized as the most sustainable process to remove phosphorus from wastewater albeit with high variability in performance efficiency. Thus, unpredictable upsets in the EBPR system is the norm across several wastewater treatment plants throughout Sweden, forcing the hand of the operators to dose higher volume of chemicals to reach the effluent requirements. READ MORE

  5. 34. How can Inflow & Infiltration be effectively and sustainably managed? : MCA as a tool for decision support in planning Inflow & Infiltration

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Erika Qvick; [2021]
    Keywords : Inflow and infiltration; stormwater; sewer system; sustainable urban water management; decision support; multicriteria analysis; Tillskottsvatten; dagvatten; avloppssystem; hållbar urban vattenhantering; beslutsstöd; multikriterieanalys;

    Abstract : Inflow and infiltration (I/I) water in the sewer network originates from groundwater, precipitation, seawater as well as over-leakage from drinking water pipes. It is the proportion of water in the sewer system that is not wastewater and causes problems both at the treatment plant as well as in the sewer network. READ MORE

  6. 35. Modeling the microbial fate and transport in rivers of South Africa

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Stina Perman; [2021]
    Keywords : Water quality modelling; HYPE; waterborne pathogen transport; microorganism; E. coli; Vattenkvalitetsmodellering; HYPE; vattenburna patogener; mikroorganism; E. coli;

    Abstract : In recent years, surface water used for domestic, industrial, and irrigation purposes in South Africa has deteriorated due to inadequate wastewater treatment, urban and agricultural runoff, and rural settlements with deficient sanitation. Access to safe drinking water and sanitation is a basic human right, and if waterborne pathogens are present in the water environment, they compose a human health risk. READ MORE